JP2010128710A - Design rule generator, and design rule generation program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently generate a reasonable design rule in design business, based on a database (DB) of design examples in the past. <P>SOLUTION: Assignment information including an assignment design item and a design value thereof, and including an assignment requirement item and requirement value thereof is input, additional requirement specification information (an additional requirement item and an additional requirement value) is input (S11), and a design rule is generated and registered which is set with the assignment information and the additional requirement specification information (S20), when a ratio covered by data having the assignment design value is higher out of data having the assignment requirement value and the additional requirement value in the design example DB, and when a ratio covered by data having the additional requirement value is lower out of data having the additional requirement value but having no assignment requirement value in the design example DB. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention searches for a design case database in which required specification data and design performance data are associated with each design example of a past product, thereby generating a design rule for generating a design rule for deriving a design result from the required specification. The present invention relates to a generation device and its program.

In the material industry such as the steel product manufacturing industry, design work is performed to determine the contents (design values) of various design items related to product manufacture based on the required product specifications from customers.
In addition, the company stores information on many past design cases by skilled workers. In designing new orders, it is often possible to use design values (design results values) that have been used in many past design cases. Therefore, the system that searches the design case database in which the required actual value for the requirement specification item and the actual design value for the design item are associated with each design example of the past product is an effective design work support tool.
In order to ensure high design quality regardless of the level of proficiency of designers, or to support the improvement of design ability of unskilled designers, it is effective to create and utilize design rules that derive design results from required specifications. It is.
For example, it is conceivable to use a rule-based system that derives a design result from input requirement specification data in accordance with the design rule. In this case, it is possible to construct a system that presents the design result of the rule base system as a design plan. In addition, it is possible to construct a system or the like that retrieves and presents past design cases from the design case database in which the same design as the content of the design by the rule base system (combination of input requirement specifications and design results) has been performed.
Further, in Patent Document 1, a design specification to be applied is determined from input requirement specification data according to a pre-registered design rule, and a design result value of the same specification as the design specification is searched from a design case database. The device to do is shown.
Since design rules for deriving design results from required specifications are important for effective use in various situations, it is desirable to be able to efficiently create (generate) reasonable design rules in design work.
JP-A-7-219989

However, Patent Document 1 does not disclose an effective means for efficiently creating (generating) an appropriate design rule.
By the way, the design rule is usually a rule representing design contents (combination of required specifications and design results) that have been adopted in past design cases. Therefore, if the data for each design case in the design case database is classified according to the requirement specification item and the combination of the actual value and the design item and the actual value, the design rule is determined for each classification. You might also say that.
However, past design cases also include the result of exceptional design due to the unique circumstances of each case. Therefore, there is a problem that an exceptional design rule that should not be used as a standard can be generated by simply classifying the data for each design case in the design case database according to the data contents that match. .
Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a design rule generation device capable of efficiently generating appropriate design rules in design work based on a database of past design cases. And providing the program.

In order to achieve the above object, a design rule generation device according to the present invention is a device that generates a design rule by searching a design case database, and includes the components shown in the following (1) to (7). It is to be prepared.
The design case database is a database in which a required actual value for a requirement specification item and a design actual value for a design item are associated with each other and stored in a storage unit for each design example of a past product. In addition, the design rule is a rule in which the requirement specification item and the required value are an antecedent part, and the design item and the design value are a consequent part.
(1) A designated requirement item that is an item of the requirement specification set in the antecedent part of the design rule, a designated requirement value corresponding thereto, and a designated design item that is the design item set in the consequent part of the design rule And designation information input means for inputting designation information including designated design values corresponding thereto.
(2) Additional requirement specification information setting means for setting additional requirement specification information which is a combination of one or more requirement specification items other than the designated requirement item in the design case database and the requirement actual value corresponding thereto.
(3) From the design case database, the required actual value for the specified request item matches the required value in the specified information, and the required actual value for the additional required item is the value in the additional required specification information. A specified / added request value matching data search means for searching for specified / added request value matching data which is data matching the requested actual value.
(4) Calculation of a specification / additional content conformance ratio in which the design actual value for the specified design item in the specification / addition request value matching data is a ratio occupied by data that matches the specified design value in the specification information Designated / added content conformance rate calculation means.
(5) From the design case database, the requested actual value for the designated request item matches the requested value in the designated information, and the designed actual value for the designated design item is the designated design in the designated information. Designated design value mismatch data retrieval means for retrieving designated design value mismatch data that is data that does not match a value.
(6) A design value non-conformance appearance rate, which is a ratio of the requested actual value for the additional request item in the designated design value inconsistent data to data that matches the required actual value in the additional required specification information, is calculated. Design value nonconformity appearance rate calculation means.
(7) When the first adoption condition including the condition that the specified / additional content conformance rate is equal to or greater than a preset value and the design value nonconformity appearance rate is less than a predetermined value is satisfied In addition, the specification request item and the specification request value and the additional request specification information in the specification information are set in the antecedent part, and the specification design item and the specification design value in the specification information are set in the consequent part. Request item addition design rule generation / output means for generating and outputting information on the design rules.
As the specified information input means, for example, an apparatus that inputs information through an operation input means such as a keyboard or a mouse, or through a communication means that performs information communication with an external device can be considered. When the designation information input means is realized by a processor of a computer and a program module executed by the processor, the designation information set by the processor executing another program module is transmitted between the program modules. It may be possible to input data through the exchange of data.

In general, the designer has basic knowledge about the correspondence between the contents of the required specifications and the design contents. Therefore, it is more practical to generate design rules based on the basic knowledge information of the designer than to generate design rules only by statistical processing on the data in the design case database. it can.
In the present invention, for the basic design rule in which only the designation information designated by the designer is set, the additional requirement specification information (added requirement specification item and its value) is added to its antecedent part. In addition, the obtained design rule is a candidate for the design rule to be determined as to whether or not it can be adopted.
Then, the design rule generation device according to the present invention determines whether or not the design rule candidate is an appropriate design rule based on data in the design case database, and determines that it is appropriate. Is adopted (generated) as a design rule.
The specification / additional content conformance rate is determined based on the design rule candidate among the past design case result data (the specification / addition requirement value matching data) that matches the antecedent part of the design rule candidate. Represents the ratio of actual data that also conforms to the consequent part (the specified design value). Therefore, it can be said that the design rule candidates that are higher in the specification / additional content matching rate are more suitable for being adopted as design rules.
The design value nonconformance appearance rate conforms to the value of the required specification item in the specified information (the specified required value) but does not match the value of the design item in the specified information (the specified design value). Conform to the additional requirement specification information (added requirement item and its value) in the actual data (designated design value mismatch data) of the design example (ie, conform to the antecedent part of the design rule) Represents the percentage of actual data. That is, the design value nonconformity appearance rate is changed from a basic design rule in which only the designation information is set to a design rule (candidate for the design rule) in which the additional requirement specification information is added to the antecedent part. Therefore, it is an index value indicating how much past cases that do not conform to the design rule are reduced. The lower the design value nonconformity appearance rate, the greater the degree of decrease. Accordingly, it can be said that the lower the design value non-conformance appearance rate, the more suitable the design rule candidate is to be adopted as the design rule.
In the design rule generation device according to the present invention, for the design rule candidate, the designation / additional content conformance rate is equal to or higher than a predetermined lower limit value, and the design value nonconformity appearance rate is less than a predetermined upper limit value. Whether or not the design rule is adopted is determined based on whether or not the first adoption condition including the condition is satisfied.
As a result, design rules that are considered appropriate in the design work are extracted from the design case database semi-automatically without the need for complicated data reduction work, only by inputting the designation information.

Moreover, it is possible that the design rule production | generation apparatus which concerns on this invention has each component shown by following (8)-(10) further.
(8) A designated request value matching data retrieval unit that retrieves designated request value matching data that is data in which the requested actual value for the designated request item matches the requested value in the designation information from the design case database.
(9) Specified content conformity for calculating a designated content conformance ratio, which is a ratio of the design actual value for the designated design item in the designated requested value match data to data that matches the designated design value in the designated information Rate calculation means.
(10) When the second adoption condition including the condition that the specified content conformity rate is equal to or greater than a preset value is satisfied, the specified request item and the specified request value in the specified information are stored in the antecedent part. Designed design rule generating / outputting means for generating and outputting design rule information that is set and in which the designated design item and the designated design value in the designated information are set in the consequent part.
In this case, the additional requirement specification information setting unit, the designation / addition requirement value matching data retrieval unit, the designation / addition content conformance rate calculation unit, the designated design value mismatch data retrieval unit, the design value nonconformity appearance rate calculation The means and the requirement item addition design rule generation / output means execute the respective processes only when the second adoption condition is not satisfied.
The specified content conformity rate is the basis in the past design case result data (the specified required value match data) that conforms to the antecedent part of the basic design rule in which only the specified information is set. It represents the ratio of actual data that also conforms to the consequent part of the design rule (the designated design value). Therefore, it can be said that the basic design rule is suitable for being adopted as a design rule even if the additional required specification information is not added if the specified content conformity rate is sufficiently high. In addition, the design rule is preferable as the requirements of the antecedent part (required specification items) are smaller.
Therefore, the design rule generation apparatus adopts the design rule as a design rule when the specified content conformance rate is sufficiently high with respect to a basic design rule in which only the specified information is set, and the specified content conformance rate. Only when the value is not sufficiently high, it is determined whether or not the design rule candidate to which the additional requirement specification information is further added can be adopted as the design rule.
Thereby, a more suitable design rule can be generated.

In addition, when the data for each design case in the design case database includes design execution time data, the first adoption condition may include the condition shown in the following (11).
(11) An actual value of the design execution time is preset in data in which the required actual value for the additional requirement item in the designated design value mismatch data matches the required actual value in the additional requirement specification information. A condition that satisfies a certain period.
As a result, for example, it becomes easy to review design rules over time by excluding design case data that has been implemented only at a certain period of time or older from the application target to the design rules. In addition, it is possible to improve the quality of design rules by using only data of highly reliable design examples that have been implemented over a relatively long period of time as targets to be applied to the design rules.
Further, the present invention can also be understood as a design rule generation program that causes a computer to execute processes executed by each component included in the design rule generation apparatus according to the present invention described above.

  According to the present invention, it is possible to efficiently generate an appropriate design rule in a design work based on a database of past design cases.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
1 is a schematic configuration diagram of a design rule registration system A including the design rule generation device X according to the embodiment of the present invention, FIG. 2 is a block diagram showing a schematic configuration of the design rule generation device X, FIG. 3 and FIG. 4 is a flowchart showing a procedure of design rule generation processing by the design rule generation apparatus X, FIG. 5 is a data configuration diagram of a design case database accessed by the design rule generation apparatus X, and FIG. 6 is acquired by the design rule generation apparatus X from the terminal. FIG. 7 is a diagram illustrating an example of an input screen for specifying information, FIG. 7 is a diagram illustrating a first example of information obtained in the process of design rule generation processing, and FIG. 8 is a second example of information obtained in the process of design rule generation processing. FIG. 9 is a diagram illustrating an example of a design rule generated by the design rule generation device X, and FIG. 10 is a conceptual diagram illustrating a relationship between various data sets included in the design case database. A.

First, a schematic configuration of a design rule generation device X and a design rule registration system A including the design rule generation device X according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the design rule registration system A includes the design rule generation device X and a terminal 2, which are configured to communicate with each other through a network 1 such as an intranet or the Internet.
In addition, the storage unit 14 accessible by the design rule generation apparatus X stores a design case database in which a required actual value for a requirement specification item and a design actual value for a design item are associated with each design example of a past product. d1 is stored in advance.
The design rule generation device X receives the designation information input at the terminal 2, and searches the design case database d1 based on the designation information to generate a design rule that derives a design result from the required specification. It is a computer that executes processing. Here, the design rule is a rule in which an item of the required specification and a required value for the IF are an IF part (antecedent part), and the design item and a design value thereof are a THEN part (a consequent part). The generated design rule information d100 is recorded (output) in the storage unit 14.

FIG. 5 is a data configuration diagram of the design case database d1 to be searched by the design rule generation device X.
As shown in FIG. 5, the design case database d1 includes an actual value (hereinafter referred to as a required actual value d112) for a plurality of required specification items d111 (required specification field items) for each past product design case. ) Is set in correspondence with design result data d12 in which actual values for a plurality of design items d121 (design field items) (hereinafter referred to as design actual values d122) are set. Record data is stored in a storage unit 14 to be described later and is a database.
Each record data in the design case database d1 includes attached data such as “case No.” data d101 that is information for identifying past product design cases and design date data d102 indicating the design implementation time. d10 is also included.

On the other hand, the terminal 2 transmits predetermined designation information to the design rule generation device X via the network 1, and receives information on processing results returned in response thereto and displays it on the display. A computer such as a computer.
The design rule generation device X acquires (inputs) the designation information used for searching the design case database d1 and generating the design rules from the terminal 2 through the network 1.

As shown in FIG. 2, the design rule generation device X includes a calculation unit 11, an operation display unit 12, a communication control unit 13, a storage unit 14, and the like.
The calculation unit 11 is a calculation unit including a CPU, a ROM, a RAM, and the like, and executes various programs described later in parallel.
The operation display unit 12 includes a display device such as a liquid crystal display (not shown) and an input device such as a keyboard and a mouse, and is a man-machine interface that performs various information input processing and display processing in the design rule generation device X. .
The communication control unit 13 is a communication interface that performs communication control based on a predetermined communication protocol (TCP / IP or the like) with the terminal 2 via the network 1.
The storage unit 14 is a storage device such as a hard disk, and stores various programs executed by the arithmetic unit 11 and various data referred to or recorded when the programs are executed.
In the present embodiment, a design rule generation program p1 and a web server program p2 are stored in advance in the storage unit 14 as programs executed by the calculation unit 11. The design case database d1 that is referred to when the design rule generation program p1 is executed is also stored in the storage unit 14 in advance.

On the other hand, the terminal 2 is a computer such as a general personal computer. Specifically, the terminal 2 includes, as components not shown, a man-machine interface including a display device and an input device, an arithmetic unit including an MPU, a main memory, and peripheral devices, a hard disk, and a nonvolatile memory. A data storage unit such as a random access memory, and a communication control unit that performs data communication via the network 1.
The terminal 2 is installed with a web browser program. The process of inputting the designation information to be transmitted to the design rule generation apparatus X while displaying the data input screen on the display device, and the process of displaying the processing result received from the design rule generation apparatus X on the display device It is executed through a browser.
Specifically, the calculation unit 11 in the design rule generation device X generates the screen data for inputting the specified information and the screen data for displaying the processing result by executing the web server program p2. Transmit to the terminal 2. The calculation unit 11 receives the designation information returned in response to transmission of screen data for inputting the designation information. Each screen data is data described in, for example, HTML or JavaScript (registered trademark of Sun Microsystems, Inc., the same applies hereinafter).

Next, the procedure of the design rule generation process by the design rule generation device X will be described with reference to the flowcharts shown in FIGS.
In the design rule generation device X, the calculation unit 11 performs the following processing by executing the design rule generation program p1. S1, S2,... Shown below represent identification codes of processing steps (steps) performed by the calculation unit 11 by executing the design rule generation program p1.
First, the calculation unit 11 monitors whether a request for starting a design rule generation process is received from the terminal 2 (S1).
When the start request is received, the calculation unit 11 transmits screen data for inputting the designation information to the terminal 2 that is the transmission source of the start request, and inputs the screen data at the terminal 2. The designated information is received (S2). Hereinafter, the terminal 2 serving as a communication partner (data transmission destination) of the design rule generation apparatus X is a transmission source of the start request.

FIG. 6 is an example of the designation information input screen acquired from the terminal 2 by the design rule generation device X in step S2. This input screen is a screen displayed on the display device by the web browser of the terminal 2 based on the screen data transmitted from the design rule generation device X to the terminal 2 in step S2.
The specification information input screen is a screen on which the specification information including the following two types of data is input in accordance with the operation of the terminal 2 by the designer.
One of the input data is a designated design item d21 which is one or a plurality of the design items d121 set in the THEN part (consequent part) of the design rule and a design value corresponding thereto (hereinafter, designated design value d22). It is said).
The second input data includes one or more specified request items d31 which are set in the IF part (preceding part) of the design rule and the required values (hereinafter, specified request). Value d32).

In addition, five types of data input frames g1 to g5 are provided on the designation information input screen shown in FIG.
The first data input frame g1 and the second data input frame g2 are parts to which the designated design item d21 and the designated design value d22 are input, respectively.
The third data input frame g3 is a portion where the designation request item d31 is input.
The fourth data input frame g4 is a portion where the finger request value d32 corresponding to the designation request item d31 is input.
When the confirmation button is operated on the designation information input screen, the designation information including the input data d21, d22, d31, and d32 is transmitted from the terminal 2 to the design rule generation device X. .

  In step S2, when the designation information is received from the terminal 2, the calculation unit 11 in the design rule generation device X matches the value (actual value) of the designation request item d31 with the designation request value d32. Is set, and the design case database d1 is searched using the search key (S3: designated request value match data search process). As a result, from the design case database d1, data in which the required result value d112 for the specified request item d31 matches the specified request value d32 in the specified information (hereinafter referred to as specified request value match data) Obtained as a search result.

Next, the calculation unit 11 determines whether or not the number of specified request value match data obtained in the process of step S3 is equal to or greater than a preset number (first set number, for example, 100). (S4).
When the number of specified request value matching data is less than the first set number, the calculation unit 11 sends an error notification to the terminal 2 that a design rule cannot be generated due to a lack of actual data. (S5), and the process returns to step S1.

On the other hand, when the number of the specified request value matching data is equal to or more than the first set number, the calculation unit 11 calculates the specified content conformance rate shown below (S6: designated content conformance rate calculation process).
The designated content conformance rate is data (hereinafter referred to as designated content conforming data) in the designated requested value matching data in which the design actual value d122 for the designated design item d21 matches the designated design value d22 in the designated information. It is the ratio that occupies).
Next, the calculation unit 11 determines whether or not a predetermined designated design rule adoption condition (an example of the second adoption condition) including a condition related to the designated content conformance ratio calculated in step S6 is satisfied ( S7).
Here, the designated design rule adoption condition includes the following conditions, and it is determined that the designated design rule adoption condition is satisfied when all of the conditions are satisfied.
The first condition is a condition that the specified content conformity calculated in step S6 is equal to or higher than a preset lower limit (for example, 80%).
The second condition is a condition that the design date d102 (actual value of the design execution time) satisfies a preset first time condition in the designated content conforming data. Here, the first time condition is before the first date (for example, the date 12 months before the current time) in which the oldest design date d102 in the designated content conforming data is preset, The condition is that the latest design date d102 in the designated content conforming data is after a preset second date (for example, a date three months before the current time).

FIG. 7 is a diagram exemplifying information related to the designated design rule adoption condition.
In the example shown in FIG. 7, the specification information includes three specification request items d31 of “standard”, “dimension”, and “customer” (customer code), and their values (the specification request). This is an example when the value d32) is specified.
Further, FIG. 7 shows that the number d41 of the designated request value matching data obtained based on the designation information is 340, the designated content matching rate d42 for the designated request value matching data is 70%, and the designated content matching data. Represents that the oldest design date d51 and the latest design date d52 are days 12 months ago and 1 month ago, respectively.
Here, when the first set number is 100, the example shown in FIG. 7 is an example that satisfies the requirement (S13) of the first set number.
Here, in the case where the lower limit of the specified content conformity rate d42 is 80%, the first date is a date 12 months ago, and the second date is a date 3 months ago, the example shown in FIG. Of the designated design rule adoption conditions, only the condition of the designated content conformity rate d42 is not established.

When the specified design rule adoption condition is satisfied, the calculation unit 11 sets the specification request item d31 and the specification request value d32 in the specification information in the antecedent part and the specification in the consequent part. Information on a design rule (hereinafter referred to as a designated design rule) in which the designated design item d21 and the designated design value d22 in the information are set is generated, and the information is registered in the storage unit 14 as new design rule information d100. (Record) (S8, designated design rule generation / output processing).
That is, in the IF part of the designated design rule newly registered in step S8, the designation request item d31 included in the designation information and the designation request value d32 that is the value (request value) are set. . When there are a plurality of the designation request items d31, they are set as AND conditions.
In the THEN part of the designated design rule, the designated setting item d21 included in the designation information and the designated design value d22 that is the value thereof are set.
On the other hand, when it is determined in step S7 that the designated design rule adoption condition is not satisfied, the calculation unit 11 executes a rule search / registration process (S9: S11 to S21) shown in FIG.

The rule search / registration process will be described below with reference to FIG.
In the rule search / registration process, first, the calculation unit 11 combines one or a plurality of requirement specification items d111 other than the designated requirement item d31 in the design case database d1 and the requirement result value d112 corresponding thereto. The additional requirement specification information is set (S11: additional requirement specification information setting process). Here, the requirement specification item d111 included in the additional requirement specification information is referred to as an additional requirement item d61, and the value (the requirement actual value d112) is referred to as an additional requirement value d62.
For example, the calculation unit 11 selects one set or a plurality of combinations according to a preset priority order from all combinations of the requirement specification item d111 other than the designated requirement item d31 and the actual value d112. By automatically selecting, the combination of the additional request item d61 and the additional request value d62 is automatically set.

  Next, the calculation unit 11 matches the value (actual value) of the specified request item d31 with the specified request value d32, and sets the value (actual value) of the additional request item d61 as the additional request value d62. A search key for matching is set, and the design case database d1 is searched using the search key (S12: designation / addition request value match data search process). Thereby, from the design case database d1, the required result value d112 for the specified request item d31 matches the specified required value d32 in the specified information, and the required result for the additional required item d61. Data whose value d112 matches the additional request value d62 (hereinafter referred to as designation / addition request value matching data) is obtained as a search result.

Next, the calculation unit 11 determines whether or not the number of the designation / addition request value matching data obtained in the process of step S12 is equal to or greater than a preset number (second set number, for example, 100). It discriminate | determines (S13).
If the number of the specified / added request value matching data is less than the second set number, the calculation unit 11 has performed the processing from step S12 on for all types of the additional request specification information that can be set. It is determined whether or not (S21). Here, when there is the additional requirement specification information that has not been set yet, the arithmetic unit 11 returns the processing to the above-described step S11 and sets the new additional requirement specification information (S11). , The processing after step S12 is repeated.

On the other hand, when the number of the specified / added request value matching data is equal to or greater than the second set number, the calculation unit 11 calculates the specified / added content conforming ratio shown below (S14: designated / added content conforming ratio) Calculation process).
The designated / added content conformance rate is data (hereinafter, referred to as “designated / added requested value matching data”) in which the design actual value d122 for the designated design item d21 matches the designated design value d22 in the designated information. It is the ratio of the specified / requested content conforming data).
Next, the calculation unit 11 determines whether or not a predetermined item addition rule first adoption condition (an example of the first adoption condition) including a condition relating to the designation / additional content adaptation rate calculated in step S14 is satisfied. Is discriminated (S15).
Here, the first item addition rule adoption condition includes the following conditions, and when all of the conditions are satisfied, it is determined that the item addition rule adoption condition is satisfied.
The first condition is that the designation / additional content adaptation rate calculated in step S14 is equal to or higher than a preset lower limit (for example, 80%).
The second condition is a condition that the design date d102 (actual value of the design execution time) satisfies a second time condition set in advance in the designation / additional content conformity data. Here, the second time condition is the same as the first time condition in that the oldest design date d102 in the designation / additional content conforming data is the first date (for example, 12 months based on the current time). It is a condition that the previous design date d102 in the specified / additional content conforming data is after a preset second date (for example, a date three months ago based on the current time). .

And when the said item addition rule 1st employment | adoption condition is not materialized, the said calculating part 11 will transfer a process to step S21 mentioned above.
On the other hand, when the item addition rule first adoption condition is satisfied, the calculation unit 11 determines that the value (actual value) of the designated request item d31 matches the designated request value d32 and the designated design item. A search key is set that the value of d21 (actual value) does not match the specified design value d22, and the design case database d1 is searched using the search key (S16: specified design value mismatch data search process). As a result, from the design case database d1, the required result value d112 for the specified request item d31 matches the specified request value d32 in the specified information, and the design result for the specified design item d21. Data whose value d122 does not match the specified design value d22 (hereinafter referred to as specified design value mismatch data) is obtained as a search result.

Next, the calculation unit 11 determines whether or not the number of designated design value mismatch data obtained in the process of step S16 is equal to or greater than a preset number (third set number, for example, 30). (S17).
When the number of designated design value mismatch data is less than the third set number, the calculation unit 11 skips the processes of steps S18 and S19 described below and shifts the process to step S20 described later.
On the other hand, when the number of specified design value mismatch data is equal to or greater than the third set number, the calculation unit 11 calculates the design value non-conformance appearance rate shown below (S18: design value non-conformance appearance rate calculation process).
In the design value non-conformance appearance rate, in the specified design value mismatch data, the required actual value d112 for the additional request item d61 matches the additional required value d62 (the required actual value in the additional required specification information). This is the percentage of data.

Next, the calculation unit 11 determines whether or not a predetermined item addition rule second adoption condition (an example of the first adoption condition) including a condition related to the design value nonconformity appearance rate calculated in step S18 is satisfied. It discriminate | determines (S19).
Here, the second item addition rule adoption condition is a condition that the design value nonconformity appearance rate is less than a predetermined upper limit value (for example, 10%).
When both the item addition rule first adoption condition and the item addition rule second adoption condition are satisfied, the calculation unit 11 sends the designation request item d31 and the designation in the designation information to the antecedent part. Information of a design rule (hereinafter referred to as an item additional design rule) in which the required value d32 and the additional required specification information are set, and the specified design item d21 and the specified design value d22 in the specified information are set in the consequent part. Is registered (recorded) in the storage unit 14 as new design rule information d100 (S20: request item additional design rule generation / output processing). Thereafter, the calculation unit 11 ends the rule search / registration process and proceeds to the next process (S10, see FIG. 3).
9 shows an example of design rule information d100 (No. 003 item addition design rule in FIG. 8) registered in step S20.

As described above, the calculation unit 11 performs the additional required specification information setting process (S11) only when the designated design rule adoption condition (an example of the second adoption condition) is not satisfied (N side of S7). ), The specified / added requested value match data search process (S12), the specified / added content conformance rate calculation process (S14), the specified design value mismatch data search process (S16), and the design value mismatch request rate calculation process (S14). S18) and the requirement item additional design rule generation / output process (S20) are executed.
As described above, when the number of designated design value mismatch data is less than the third set number, the credibility of the design value non-conformance appearance rate calculated using the number as the parameter is low. In this case, the item addition design rule is generated and registered (S20) when the item addition rule first adoption condition is satisfied.
Finally, the calculation unit 11 displays information on the newly registered design rule (the designated design rule or the requirement item additional design rule) and various information calculated in the course of the registration. The screen data to be displayed on the screen is organized, and the screen data is transmitted to the terminal 2 (S10).
In addition, the said calculating part 11 returns a process to step S1 mentioned above after completion | finish of the process of step S10.

Hereinafter, the designation / additional content conformance rate d72 and the design value nonconformity appearance rate d82 will be described again with reference to the conceptual diagram shown in FIG. FIG. 10 is a conceptual diagram showing the relationship of various data sets included in the design case database d1.
In FIG. 10, a data set dg0 (within a thin solid line) is a set of all data included in the design case database d1.
Further, the data set dg1 (within the thick practice frame) is a set of the specified content matching data, in which the actual value of the specified design item d21 matches the specified design value d22. It is.
Further, the data set dg2 (inside the broken line frame) is a set of the designated design value mismatch data obtained by the process of step S16. That is, a combination of the data set dg1 and the data set dg2 is a set of the specified request value matching data obtained by the process of step S3.
A data set dg3 (inside the one-dot chain line) is a set of the designation / addition request value matching data obtained by the process of step S12.
In this case, the ratio of the hatched portion in the range of the set dg1 in FIG. 10 is the designation / additional content adaptation rate d72. Further, the ratio of the horizontal line portion in the range of the set dg2 in FIG. 10 is the design value nonconformity appearance rate d82.
The specified / added content conformance rate d72 is a consequent part of a design rule candidate among the past design case result data (the specified / added required value match data) that matches the antecedent part of the design rule candidate. It represents the ratio of actual data that also conforms to (designated design value). Therefore, it can be said that a design rule candidate having a high designation / addition content matching rate d72 is suitable for being adopted as a design rule.
On the other hand, the design value nonconformity appearance rate d82 is changed to a design rule in which an item is added to the antecedent part of the basic design rule in which only the specified information is set. This is an index value indicating how much the number of cases decreases. It can be said that a design rule candidate having a low design value nonconformance appearance rate d82 is suitable for being adopted as a design rule.

FIG. 8 is a diagram illustrating information regarding the item addition rule adoption conditions (the item addition rule first adoption condition and the item addition rule second adoption condition).
In the example shown in FIG. 8, in step S11, “use” is set as the additional request item d61 in the additional request specification information, and three types of additional request values d62 are set as the values. It is an example of the said item addition design rule (No. 001-003). The designation information is the same as the example shown in FIG.
Further, FIG. 8 shows the number d71 of the designation / addition request value match data for the three item addition design rules, the designation / addition content conformity rate d72 for the designation / addition request value match data, and the designated design. The number d81 of value mismatch data, the design value non-conformance appearance rate d82, the oldest design date d91 and the latest design date d92 in the designation / addition content conforming data are illustrated.
Here, the lower limit value of the designation / additional content conformance rate d72 is 80%, the upper limit value of the design value nonconformity appearance rate d82 is 10%, the first date is 12 months ago, and the second date is 3%. In the case of the day before the month, the example shown in FIG. 8 shows that only for the third item addition design rule (No. 003), the item addition rule first adoption condition and the item addition rule second adoption condition It shows that both are true.

As described above, generating a design rule based on the designer's knowledge about the correspondence between the contents of the required specifications and the design contents leads to generation of highly practical design rules.
In the present invention, the knowledge of the designer is reflected in the designation information. Then, the design rule generation device X first determines whether or not the designated design rule in which only the designated information is set can be adopted (S7), and when the designated design rule cannot be adopted as the registered design rule, The item additional design rule obtained by adding the additional required specification information to the antecedent part of the designated design rule is a subject of determination as to whether or not it can be adopted.
Then, the design rule generation device X determines whether or not the item addition design rule is an appropriate design rule based on the data in the design case database d1 (S15, S19). Is adopted (registered) as a new design rule.
In addition, it can be said that the item addition design rule is more suitable to be adopted because the higher the designation / addition content matching rate d72 is, the higher the reliability as the design rule (there are few exceptions).
In addition, as the design value non-conformance appearance rate d82 is lower, the number of past cases that do not conform to the design rule is greatly reduced by the addition of the additional required specification information (reduction from the data set dg2 in FIG. 10 to the data of the horizontal line portion). Represents. Therefore, it can be said that the item addition design rule is more suitable for being adopted as a design rule as the design value nonconformity appearance rate is lower.
Then, the design rule generation device X, for the item addition design rule, has a specified / added content conformance rate d72 of a predetermined lower limit value or more and a design value nonconformity appearance rate d82 of less than a predetermined upper limit value. Only when a certain condition is met, it is adopted (registered) as a design rule.
As a result, design rules that are considered appropriate in the design work are extracted from the design case database semi-automatically without the need for complicated data reduction work, only by inputting the designation information.
As a result, the design rule that is considered to be appropriate in the design work is extracted semi-automatically from the design case database d1 without requiring complicated data reduction work only by inputting the designation information.
The registered design rule information d100 can be used in various ways.
For example, it is conceivable to construct and utilize a rule-based system for deriving design results from input requirement specification data in accordance with the design rules. In this case, it is possible to construct a system that presents the design result of the rule base system as a design plan. Further, it is possible to construct a system or the like that searches the design case database d1 and presents past design cases in which the same design as the content of the design based on the rule base system (combination of input requirement specifications and design results) is performed. .

By the way, the design rule generation device X realizes each function of communication with the terminal 2, search of the design case database d1, and generation of the design rule based on the search result by a single computer. . However, a configuration realized by sharing the function of the design rule generation apparatus X by a plurality of computers is also conceivable.
The design case database d1 may be stored in a storage device of a computer different from the design rule generation device X.
In addition, the design rule generation device X has a function of inputting the designation information through operation input means such as a keyboard provided in the operation display unit 12 instead of inputting the designation information through the external terminal 2. Examples are also possible.
It is also conceivable that the design rule generation device X inputs the designation information including the designated design rule adoption condition and the item addition rule adoption condition.

  The present invention can be used for a design rule generation apparatus that generates a design rule for deriving a design result from a required specification by searching a design case database.

1 is a schematic configuration diagram of a design rule registration system A including a design rule generation device X according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a schematic configuration of a design rule generation device X. The flowchart (1) showing the procedure of the design rule production | generation process by the design rule production | generation apparatus X. FIG. The flowchart (2) showing the procedure of the design rule production | generation process by the design rule production | generation apparatus X. FIG. The data block diagram of the design example database which the design rule production | generation apparatus X accesses. The figure showing an example of the input screen of the designation information which the design rule production | generation apparatus X acquires from a terminal. The figure which showed the 1st example of the information obtained in the process of a design rule production | generation process. The figure which showed the 2nd example of the information obtained in the process of a design rule production | generation process. The figure showing an example of the design rule produced | generated by the design rule production | generation apparatus X. The conceptual diagram showing the relationship of the collection of the various data contained in a design example database.

Explanation of symbols

A: Design rule registration system X: Design rule generation device 1: Network 2: Terminal 11: Calculation unit 12: Operation display unit 13: Communication control unit 14: Storage unit d1: Design case database d100: Design rule information S1, S2 , ...: Processing procedure (step)

Claims (4)

By searching the design case database stored in the storage means in association with the required actual value for the required specification item and the actual design value for the designed item for each past product design case, the required specification item and A design rule generation device for generating a design rule having a requirement value corresponding to the antecedent part, the design item and a design value corresponding thereto as a consequent part,
Designated requirement item that is an item of the requirement specification set in the antecedent part of the design rule, a designated requirement value corresponding thereto, and a designated design item that is the design item set in the antecedent part of the design rule Designated information input means for inputting designated information including designated design values;
Additional requirement specification information setting means for setting additional requirement specification information which is a combination of one or more requirements specification items other than the designated requirement item in the design case database and the requirement actual value corresponding thereto;
From the design case database, the required actual value for the designated request item matches the required value in the designated information, and the required actual value for the additional required item is the required actual value in the additional required specification information. A specified / addition request value match data search means for searching for specified / addition request value match data that is data matching
Designation / additional content conformance ratio in which the design actual value for the designated design item occupies the data that matches the designated design value in the designation information in the designation / addition request value matching data Additional content conformity rate calculation means,
From the design case database, the requested actual value for the designated request item matches the requested value in the designated information, and the designed actual value for the designated design item matches the designated design value in the designated information. Designated design value mismatch data retrieval means for retrieving designated design value mismatch data that is not to be processed;
Design value non-conformity for calculating a design value non-conformance occurrence rate, which is a ratio of data in which the required actual value for the additional request item matches the required actual value in the additional required specification information in the specified design value inconsistent data An appearance rate calculating means;
When the first adoption condition including the condition that the specified / additional content conformance rate is equal to or greater than a preset value and the design value nonconformity appearance rate is less than a predetermined value is satisfied A design rule in which the designation request item and the designation requirement value and the additional requirement specification information in the designation information are set in a condition part, and the designated design item and the designated design value in the designation information are set in a consequent part A requirement item additional design rule generation / output means for generating and outputting information on
A design rule generation device comprising: A designated request value matching data retrieval unit for retrieving designated request value matching data, which is data in which the requested actual value for the designated request item matches the requested value in the designation information, from the design case database;
Designated content conformity rate calculating means for calculating a designated content conformance rate, which is a ratio of the design actual value for the specified design item in the specified requested value matching data to data that matches the specified design value in the specified information When,
When the second adoption condition including a condition that the specified content conformity rate is equal to or higher than a preset value is satisfied, the specified request item and the specified request value in the specified information are set in the antecedent part, A designated design rule generating / outputting means for generating and outputting design rule information in which the designated design item and the designated design value in the designated information are set in a consequent part;
Comprising
The additional requirement specification information setting means, the designation / addition requirement value match data search means, the designation / addition content conformance rate calculation means, the designated design value mismatch data search means, the design value mismatch appearance rate calculation means, and the request item The design rule generation device according to claim 1, wherein the additional design rule generation / output unit executes each process only when the second employment condition is not satisfied. The actual value of the design implementation time is included in the data for each design case in the design case database,
In the first adoption condition, in the data in which the required actual value for the additional requirement item of the designated design value mismatch data matches the required actual value in the additional requirement specification information, the actual performance of the design implementation time The design rule generation device according to claim 1, wherein a condition that the value satisfies a preset time condition is included. By searching the design case database stored in the storage means in association with the required actual value for the required specification item and the actual design value for the designed item for each past product design case, the required specification item and A design rule generation program for causing a computer to execute a process of generating a design rule having an antecedent part as a requirement part, the design item and a design value as a consequent part,
Computer
Designated requirement item that is an item of the requirement specification set in the antecedent part of the design rule, a designated requirement value corresponding thereto, and a designated design item that is the design item set in the antecedent part of the design rule Specified information input processing for inputting specified information including specified design values;
An additional requirement specification information setting process for setting additional requirement specification information that is a combination of one or more items of the requirement specification other than the designated requirement item in the design case database and the requirement actual value corresponding thereto;
From the design case database, the required actual value for the designated request item matches the required value in the designated information, and the required actual value for the additional required item is the required actual value in the additional required specification information. Specified / added request value match data search processing to search for specified / added request value match data that matches the data,
Designation / additional content conformance ratio in which the design actual value for the designated design item occupies the data that matches the designated design value in the designation information in the designation / addition request value matching data Additional content precision calculation processing,
From the design case database, the requested actual value for the designated request item matches the requested value in the designated information, and the designed actual value for the designated design item matches the designated design value in the designated information. Specified design value mismatch data search processing for searching for specified design value mismatch data that is not processed,
Design value non-conformity for calculating a design value non-conformance occurrence rate, which is a ratio of data in which the required actual value for the additional request item matches the required actual value in the additional required specification information in the specified design value inconsistent data Appearance rate calculation processing,
When the first adoption condition including the condition that the specified / additional content conformance rate is equal to or greater than a preset value and the design value nonconformity appearance rate is less than a predetermined value is satisfied A design rule in which the designation request item and the designation requirement value and the additional requirement specification information in the designation information are set in a condition part, and the designated design item and the designated design value in the designation information are set in a consequent part Generate and output required item additional design rules that generate and output information about
Design rule generation program to execute.

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