JP2001331210A - Production managing device and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a production managing device capable of removing the unnecessary cost recalculation of components in a lower rank layer from a target, and shortening a processing time at the time of cost recalculation and the computer readable recording medium mounted like this production managing device. SOLUTION: It is recognized that the specification (production technique information) of a component b being the origin of change which is stored in a data base is changed, and it is recognized that the speciation (production technique information) or component constitution of the slave components of the component b is changed. In the case of the former recognition, only the costs of the component b are decided so that single scale calculation can be performed, and in the case of the latter recognition, the costs of the component b are decided so that addition calculation can be performed by adding the costs of the slave components. This process is repeated for only the upper rank layer than the hierarchy of the component b in the component chart.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, when there is a change in the specification, component configuration, etc. of a certain product or semi-finished product, other components related to the changed component (or product or semi-finished product) The present invention relates to a production management apparatus for determining whether or not recalculation is performed for each component layer so that a cost can be recalculated only for a component hierarchy, and a computer-readable recording medium such as the production management apparatus.

[0002]

2. Description of the Related Art For example, in a production management system,
Processing procedures for certain products or semi-finished products or parts, suppliers,
Information such as process and processing time (production technology information) is stored in a database and managed by a subsystem called "production technology information system". A bill of materials of a product or a semi-finished product managed by this subsystem is stored in a database called “parts configuration master”,
It is managed by a subsystem called a “parts list system”.

[0003] The component configuration master describes a component configuration in a tree structure with the parent-child relationship between a product or a semi-finished product (parent component) and the components (child components) constituting the same as each record. Hereinafter, for convenience of description, a part including a product or a semi-finished product is referred to as a part, and a parent-child relationship with the part is distinguished and used as a “parent part” and a “child part”.

[0004] Production technology information such as the type of production process and the routing of each part is stored in a database called a "process master" and a "process procedure master". The process master stores master information about processes to be processed in-house (also referred to as in-house production), and the process procedure master stores information such as a routing, an ordering party, and a unit price for each item number. Has become. In the process master for in-house production, the unit price per time required for the corresponding in-house production process is stored for each process.

The unit price for subcontracting is, for example, an ordering unit price determined by price negotiation with a subcontractor, and is directly input to the process procedure master. On the other hand, the unit price of in-house production changes appropriately depending on the type of process, production time, and the like.
Information such as the type of process and the production time for each item number is stored in a database called a “process description file”. Therefore, the cost of the corresponding part is calculated by multiplying the production time in the process stored in the process specification file by the unit price per hour stored in the process master described above.

In the production management system configured as described above, if there is a change in production technology information (processing details, process procedures, etc.) of a part, a process procedure master, a process master, and a process specification file A process of changing the production technology information composed of the above-mentioned processes (raw technology change process) is performed.
When there is a change in the configuration of a child component having a certain component as a parent component, a process of changing the component table information composed of the component configuration master (a component table change process) is performed.

If such a change occurs, the cost of the certain part itself may change, and the cost of a parent part having this part as a child part may change. Therefore, in the conventional production management system,
In such a situation, it is configured to recalculate the costs of all parts, so that the latest cost information can be always maintained.

[0008]

However, in the above-described conventional production management system, when a raw technique change process or a parts list change process is performed for a certain part, all parts in the upper layer and the lower layer of the part are changed. Since the database related to the change is processed and all the costs related to the change are recalculated, especially, the part that is the source of the change is a common part, and many different parts are configured. In such a case, there is a problem that the processing time becomes enormous.

[0009] Even if the cost of the part (parent part) to be changed is changed, if the cost of the child parts constituting the part is not changed, the calculation for that part is useless, This contributes to the above-mentioned problem.

The present invention has been made in view of such circumstances, and focuses on a part that is a source of change by the first recognition means, and there is a change in production technology information of the part stored in the database. The second recognition means recognizes that there has been a change in the production technology information or the component configuration of the child component having the component that is the source of the change as a parent component,
Basically, when the first recognition means recognizes the change,
It is determined to recalculate only the cost of the part that is the source of the change, and when the second recognition unit recognizes the change, the cost of the part that is the source of the change is The decision to recalculate by adding up from the costs of the child parts to be made is repeated only for layers higher than the layer in the parts table of the part that is the source of the change, thereby recalculating the cost. A production management apparatus capable of excluding cost recalculation of lower layer components that do not need to be performed from the target and greatly reducing the processing time at the time of cost recalculation, and reading by a computer such as the production management apparatus. It is an object to provide a possible recording medium.

[0011]

According to a first aspect of the present invention, there is provided a production management apparatus comprising: information indicating a relationship between a first article and one or more second articles constituting the first article; and production technical information of each article. Is stored in a database, and a combination of first recognition means for recognizing that the production technology information of the first article has been changed based on the database and production technology information of the second article or the second article has been changed. The cost of the first article stored in the database without depending on the cost of the second article, in accordance with the second recognition means for recognizing the fact based on the database and the combination of the recognition results by the two recognition means. Or a determining means for determining whether to calculate the cost of the first article depending on the cost of the second article or to update the cost.

The production management apparatus according to a second aspect of the present invention is the production management apparatus according to the first aspect, wherein the relationship between the first article and the second article is over a plurality of levels, and the database includes the plurality of levels. Information indicating the relationship between the first article and the second article is stored, and when the first article constitutes a different article, a hierarchy in the component configuration of the first article is specified based on the database. , And the first
In the case where the articles are present in a plurality of different hierarchies, the apparatus further comprises means for selecting the lowest one from among the plurality of hierarchies, so that each recognition and determination is repeated for each article in a higher hierarchy than the selected hierarchy. It is characterized by being done.

According to a third aspect of the present invention, there is provided a recording medium comprising: a first article; information indicating a relationship between one or a plurality of first articles constituting the first article; and contents of a database storing production technology information of each article. Program code means for causing the computer to recognize that the production technology information of the first article has changed, and causing the computer to recognize that the combination of the production technology information of the second article or the combination of the second articles has changed. The cost of the first article stored in the database is not dependent on the cost of the second article or the first article according to the combination of the program code means and the result of the program code means recognizing the two program code means. Program code means for determining whether to calculate the cost of the second item depending on the cost of the second article.

In the present invention, the relationship between the parent part and the child part as described above is defined as a first article and a second article, respectively. The parent and child of one or more child parts in a database such as a part configuration master or the like. Relationships are stored. Further, production technology information of each part is stored in each database such as a process procedure master, a process master, and a process specification file. Note that the production management device according to the present invention does not need to directly include a database that stores the above-described information. For example, as described below, the production management device is a database on a network to which the production management device is connected. Is also good. Further, each database may be configured collectively as one database.

The first recognizing means recognizes, based on the database, that the production technology information of a part has been changed.
On the other hand, the second recognizing means recognizes, based on the database, that the production technology information of the child part forming the certain part or the combination (part configuration or the like) of the child part forming the certain part has been changed. Then, the cost of the certain part stored in the database is calculated without depending on the cost of the child part according to the combination of the recognition results of the changes by the two recognition means (single part calculation).
The determination means determines whether to perform the calculation of the certain part or to calculate the cost (stacking calculation) depending on the cost of the child part (calculated earlier).

Note that the cost calculation itself may be performed by, for example, another subsystem or the like. In the present invention, the cost calculation may be performed if it has a function of determining which of the above calculations is to be performed on the target parent part. Good. The result of this decision is
For example, it may be recorded as a flag or the like in an appropriate database, preferably in the above-mentioned production item master. It is recalculated by batch processing or the like in an appropriate time zone.

Therefore, according to the present invention, the cost recalculation of the lower layer parts which does not require the cost recalculation can be excluded from the target, and the processing time at the time of the cost recalculation can be greatly reduced. .

Further, in the present invention, the parent-child relationship of the parts extends over a plurality of layers, and the database stores information indicating the parent-child relationship of the parts over the plurality of layers. If the (first article) forms a different part, the hierarchy in the part configuration of this part is specified based on a database such as a parts table. Further, when the certain component exists in a plurality of different hierarchies, a component having the lowest hierarchy is selected from the hierarchies, and each recognition and determination as described above is performed by each component in a higher hierarchy than the selected hierarchy. Repeat for

More specifically, for example, a part which has been recognized by the second recognition means is combined with another part to form another part, and these parts constitute one product or a semi-finished product. In such a case, the same part may exist in a different parts table hierarchy. In other words, the parts table is developed with the lowest layer among these as the reference (first article), and the above-described recognition and determination operations are repeated for the parts in the higher layers. Therefore, it is possible to reliably recalculate the target components in order from the lowest level.

Further, in the present invention, since the former function of the above two inventions is configured as a recording medium, the present invention is realized by causing a computer or the like to read a computer program corresponding to such a function. Can be realized.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a block diagram showing a configuration of a production management device according to the present invention and a configuration of a network to which the production management device is connected. In FIG. 1, reference numeral 1 denotes a production management device according to the present invention, and the production management device 1 has a LAN interface (LANI) provided therein.
/ F) 16 via LAN3. LAN
3 includes, in addition to the production management device 1, a component configuration master DB1, a production item master DB2, and a process procedure master DB.
3, a database server (DB server) 2 that manages various databases such as a process master DB 4 and a process specification file DB 5 is connected.

A production management system is constructed by the devices connected to the LAN 3, and the databases DB 1 to DB 5 managed by the DB server 2 can be accessed from the devices on the LAN 3 via the DB server 2. I can do it. In the LAN 3, various subsystems related to production management such as the production technology information system and the parts list system as described above are constructed, and the contents of each database described above are changed by appropriate ones of these subsystems. Is configured to be able to be performed.

The production management device 1 includes a CPU 10, a hard disk drive (HDD) 11, a RAM 12, a ROM drive 13, an input unit 14, a display unit 15, and the above-described L.
In addition to the ANI / F16, eight work files WK1
WK8 and the like are provided. The work files WK1 to WK1
WK8 will be described later in detail,
11 or a so-called temporary file generated in the RAM 12 or the like. However, in FIG. 1, the work files WK1 to WK8 are shown like a physical database for clarity of explanation.

The CPU 10 executes various processes necessary for production control according to the present invention based on a computer program stored in the HDD 11.

The HDD 11 stores various computer programs necessary for the operation of the CPU 10 in advance.

The RAM 12 stores temporary data generated when the CPU 10 executes a computer program.

The ROM drive 13 is a CD-ROM, D
The information recorded on the ROM disk such as a VD-ROM is read, and the read result is provided to the CPU 10.

The input unit 14 is an input device including a keyboard, a mouse, and the like, and inputs various setting conditions and the like relating to production management.

The display unit 15 includes a display device such as a liquid crystal display (LCD) or a CRT display.
It displays various information input from the CPU, the operation state of the CPU 10, and the like.

Next, the contents of each of the databases DB1 to DB5 provided in the DB server 2 will be described. FIG. 2 is an explanatory diagram for explaining an example of the configuration of a component handled in the present embodiment. FIG. 3 is a diagram showing an example of the storage contents of a component configuration master DB1, and FIG. FIG. 5 is a diagram showing an example of storage contents of a process procedure master DB3, FIG. 6 is a diagram showing an example of storage contents of a process master DB4, and FIG. 7 is a process specification file DB5.
FIG. 4 is a diagram showing an example of the stored contents of the above.

First, as shown in FIG. 2, a product or a semi-finished product having an item number (product number) of “X” is assumed here. However, as described above, a product or a semi-finished product is also referred to as a “part” for convenience. The part “X” is composed of three parts, a part “A”, a part “B”, and a part “C”. The part “A” is composed of five parts: two parts “a”, “b”, “d”, and “e”. Further, the part “b” is composed of two parts, a part “a” and a part “b”. The part “C” enclosed by a broken line in FIG. 2 will be described later.

The above-described part "B" is further composed of two parts, a part "A" and a part "F". The configuration of the component “A” is as described above.

Further, the above-mentioned part "C" is composed of two parts, a part "b" and a part "D". The configuration of the component “b” is as described above.

The component configuration as described above is stored in the component configuration master DB 1 in the form as shown in FIG. 3, for example. That is, the component configuration master DB1 stores “parent item number”,
It consists of attributes such as "child item number", "auxiliary number", and "number of components". The attribute of the parent item number indicates the item number of the part corresponding to the record. The attribute of the child item number indicates the item number of the child part whose parent part is the part of the parent item number. The attribute of the auxiliary number indicates a number for identifying a part having the same child item number and a partially different specification, for example. The attribute of the number of components indicates the number of child components constituting the component of the parent item number of the record. However, here, an example in which the child item number and the auxiliary number are duplicated is not shown, so that the number of all the records is “1”.

The production item master DB2 as shown in FIG.
It is composed of attributes such as "item number", "LLC (low level code)", "latest cost", "latest cost", "cost recalculation F", and "cost recalculation F". . The attribute of the item number indicates the item number of the part corresponding to the record. The LLC attribute indicates the lowest hierarchy among the hierarchies in the component configuration in which the component of the corresponding item number is used. In the example of FIG. 0 ”,“ 1 ”,“ 2 ”,
They are defined as "3" and "4". The attribute of the latest cost indicates the cost after the single item cost calculation when the cost of the part of the corresponding item number is changed without being affected by the cost of the child part. The attribute of the latest cost is
This shows the cost after the calculation of the stacking cost when the cost of the part of the corresponding item number is changed by being affected by the cost of the child part. The data described in the attribute of each cost includes the material cost of the corresponding item number and the processing cost required for the production.

The attribute of the cost recalculation F is a flag indicating whether or not it is necessary to recalculate the single item cost of the component of the corresponding item number. The attribute of the stacking recalculation F is a flag indicating whether or not it is necessary to recalculate the stacking cost of the part having the corresponding item number. Each flag is indicated by “0” or “1”, and it is determined whether the single item cost calculation and the stacking cost calculation are to be performed for the part of the corresponding item number according to a combination of these two flags as described later. In FIG. 4, the cost recalculation F and the stacking recalculation F for the component "b" are each "1", which will also be described later.

The process procedure master DB3 as shown in FIG.
It is composed of attributes such as “item number”, “routine”, “supplier (subcontractor)”, and “order unit price” of parts produced by outsourcing. In FIG. 5, the parts "F" and "e"
In the example shown, two parts are subject to outsourcing, and the part "F" is produced by a processing procedure of type "010", and is ordered from "〇〇 Sangyo" for "¥ 300". .
The part "e" is produced by a processing procedure of the type "018", and is ordered from "xx industry" for "¥ 50". That is, these parts “F” and “e” are respectively
The cost is \ 300 and \ 50.

The process master DB 4 as shown in FIG. 6 includes attributes such as "process code" and "operating cost per hour". This database is configured so that the in-house unit price (cost) of each component can be calculated by using it in combination with a process specification file DB5 described in detail below. The attribute of the process code is a code assigned to each production process or each production facility. The attribute of the operating cost per hour indicates the operating cost per unit time of the production process or the production facility corresponding to each process code. In the example of FIG. 6, the NC machine tool to which the process code “NC1” is assigned is
It can operate at "¥ 100" per unit time, and "NC
This indicates that the NC machine tool to which the process code “2” is assigned can operate at “¥ 80” per unit time.

Process specification file DB5 as shown in FIG.
Is composed of attributes such as “item number”, “routing”, “center routing”, “process code”, “standard time”, and “setup time”. This database indicates the processing method and the type of production process or production equipment capable of producing each part to be manufactured in-house, and the time and setup time required for this production. The attribute of the item number indicates the item number of the part corresponding to the record. The attribute of the routing is the same as that of the process procedure master DB3 for outsourcing. The attribute of the center routing is a more detailed identification code of the attribute of the routing, and indicates a work center such as a specific production process or production facility. The attribute of the process code corresponds to that of the process master DB 4 described above. The attribute of the standard time indicates a standard time (for example, per unit) required to produce the part of the corresponding item number in this work center. The attribute of the setup time indicates the time required for changing the work center when starting the production of the part having the corresponding item number.

The production management apparatus 1 according to the present invention can access each database as described above via the DB server 2, and there is a change in the contents of a predetermined database as described below. Recognize this when
It has a function to determine how to perform cost recalculation according to this change. This recognition is performed by a flag set in the production item master DB2. First, a procedure for setting the flag will be described with reference to FIG.

FIG. 8 is a flowchart for explaining the flags recognized by the production management device 1 according to the present invention. First, the raw technique change processing will be described. For example,
The production technology information system as described above includes a process procedure master DB3, a process master DB4, or a process specification file DB.
When the production technology information such as the specification of parts and the delivery date stored in 5 is changed (change of production technique), "1" is set in the cost recalculation F of the corresponding record in the production item master DB2.

Next, the component change processing will be described. For example, in the parts table system as described above, when a part stored in the parts configuration master DB1 is added to, deleted from, or changed (of specifications) from its parent part as a parent part, the corresponding part in the manufacturing item master DB2 is obtained. "1" is set in the stacking recalculation F of the record of the parent part.

That is, the production management device 1 according to the present invention
By referring to the cost recalculation F established in accordance with the change in the storage contents of the process procedure master DB3, the process master DB4, or the process specification file DB5, a change in the specification of a certain component is recognized, and the component configuration master is recognized. By referring to the stacking recalculation F established according to the change of the storage content of the DB1, the change of the configuration or specification of the child part having a certain part as a parent part is recognized. If we recognize the former change,
Generally, only the cost of the corresponding part needs to be recalculated. Also, when the latter change is recognized, the cost of the corresponding part is added to the cost of the child part and recalculated,
Prior to this, the cost of all child components must be known. However, if there is a change in the specifications of a part, it is necessary to calculate the cost of this part separately.
If the part has a parent part, the cost of the parent part needs to be calculated. Therefore, by repeating the recognition and determination (and operation) as described above,
The cost of the part to be changed will be sequentially recalculated.

Next, the processing of the CPU 10 of the production management device 1 according to the present invention based on the above-described flags will be described. In the present embodiment, the production management device 1 according to the present invention performs the cost calculation. However, as described above, the production management device 1 refers to the flag of the production item master DB 2 and performs other calculations based on the flag. The subsystem may be configured to perform the recalculation.

FIG. 9 is a flowchart showing the contents of processing by the CPU 10 of the production management device 1 according to the present invention, which is involved in cost calculation. FIGS. 10 to 13 are diagrams showing an example of the storage contents of the work files WK1 to WK8.
FIG. 4 is a table showing the correspondence between processing conditions and processing contents in step 2. Here, as shown in FIG. 2, a description will be given assuming that a child component "c" is newly added to the component "b".

First, the CPU 10 executes the manufacturing item master DB
2 LLC (low level code) is set (step 1). This setting refers to the attributes of the parent item number and the child item number in the component configuration master DB1, traces the component configuration, sets the lowest level in which each component is used, and sets this level as shown in FIG. By writing to the production item master DB2. For example, if the level of the component “X” is “0”, the level of the component “b” is “3”.
Of course, other parts other than the object to be changed are similarly implemented at this time.

Next, the CPU 10 executes the manufacturing item master DB
1, the item number of the record in which the flag of either the cost recalculation F or the cost recalculation F is “1” is read, and the process procedure master DB 3 or the process master DB 4 and the process specification are performed based on the item number. A single item cost calculation is executed with reference to one of the file DBs 5 (step 2). The single item cost calculation is performed based on the order unit price of the process procedure master DB3 for the flagged component if the component is outsourced, and the time of the process master DB4 if the component is in-house. This is performed by multiplying the operating cost per unit by the standard time and setup time of the process specification file DB5.

As shown in FIG. 14, the CPU 10 determines the update of the production item master DB2 and the output of the work files WK1 and WK2 based on a combination of flag states (processing conditions). That is, in the example of FIG. 4, in the record of the item number “b”, both the cost recalculation F and the costing recalculation F are “1”.
The CPU 10 recalculates the single item cost of the production item master DB2 as described above, and also recalculates the accumulation cost as described later. Therefore, the CPU 10 resets the latest accumulation cost of the production item master DB2 to “0”. The work files WK1 and SLX for finding the parent
Output both the work file WK2 for development (partial development).

When only the cost recalculation F is "1", the CPU 10 recalculates the single item cost similarly to the above case, and does not need to recalculate the stacking cost. Therefore, "as is". The work file WK1 is output only when the single item cost is actually changed by recalculation, and is not output for the work file WK2.

Further, when only the costing recalculation F is "1", the CPU 10 does not recalculate the single item cost but leaves it "as is", and recalculates the costing later. The latest stacking cost of the item master DB2 is reset to “0”. In this case, both work files WK1 and WK2 are output.

The contents of the work files WK1 and WK2 are the same, and is a database having one attribute indicating only the item number of the record for which the flag has been set. For example, when the state of the flag in the manufactured item master DB2 is as shown in FIG. 4, as shown in FIG. 10A, the output is made as having one record with the item number "b".

Subsequently, the CPU 10 sets the work file W
Referring to the component configuration master DB1 with the item number in K1 as a child item number, all parent parts of the part corresponding to the child item number are extracted (parts table upper parent search: step 3). As a result, the CPU 10 outputs the work file WK3. The work file WK3 is a database having one attribute indicating only the item number of the record recognized as the parent part. For example, since the work file WK1 has the item number “b”, the parent item numbers of the records in which the “b” is the child item number in the component configuration master DB1 are “A”, “B”, “C”, And “X”, and as the work file WK3, FIG.
These four item numbers are output as shown in FIG.

Next, the CPU 10 outputs the work file WK2 output in step 2 and the work file WK3 described above.
And sort them in the order of the item numbers (step 4).
As a result, the CPU 10 sets the work file WK4
Is output. Therefore, the work file WK4 is a database having one attribute indicating only the item number.
For example, since the work file WK2 has the item numbers "b" and the work file WK3 has the item numbers "A", "B", "C", and "X", the work file WK4 is shown in FIG. As shown in c), these are added up to output five item numbers.

Then, the CPU 10 refers to the component configuration master DB1 using the item number in the work file WK4 as a parent item number, and extracts all child components of the component corresponding to the corresponding parent item number (parts list SLX). (Single L
evel eXtension) Deployment: Step 5). Note that the parts table S
LX development is to develop the parts table in the forward direction. As a result, the CPU 10 outputs the work file WK5. The work file WK5 includes “parent item number”, “child item number”, “auxiliary number”, “number of components”, and “parent LL”.
C "and the like.

For example, as shown in FIG. 11, a parent item number “A” is a child item number “a” having two auxiliary numbers “1” and “2”, child item numbers “b”, “d”, And records of five child item numbers of “e”, and the number of each record is “1”. The LLC of the parent (parent item number) of each record, that is, the LLC of "A" is read from the manufactured item master DB2. SLX expansion is similarly performed for the other parent item numbers "B", "C", "X", and "b".

Next, the CPU 10 sorts the work file WK5 by setting a priority order in the order of parent item number, child item number, and auxiliary number (step 6). As a result, the CPU 10 outputs the work file WK6. Here, the purpose is mainly to sort the item numbers having the auxiliary numbers, but since the item number “a” having only the auxiliary number is already stored in the parts configuration master DB1 as a sorted state, as a result, As shown in FIG. 11, the work file WK6 has the same contents as the work file WK5. Therefore, this step is unnecessary in the case where the auxiliary number is not used in the component configuration master DB1.

Next, the CPU 10 adds up the records having the same parent item number and child item number in the above-mentioned work file WK6 (preparation of stacking statement: step 7).
As a result, the CPU 10 sets the work file WK7
Is output. That is, the two records of the child item number "a" having the only auxiliary number in the work file WK6 are integrated into one, and the number of components is set to two as shown in FIG. Accordingly, the attribute of the auxiliary number in the work file WK6 has been deleted since it becomes unnecessary in the work file WK7. Therefore, in the case of a configuration in which the auxiliary number is not used in the component configuration master DB1, this step is also unnecessary.

Subsequently, the CPU 10 sets the priority order in the order of the parent LLC, parent item number, and child item number. Of these, only the parent LLC is stored in the descending order (the rest in ascending order), and the above-mentioned work file WK7 is stored. Sort (step 8). As a result, the CPU 10 outputs the work file WK8. As shown in FIG. 13, the three records of the parent item number “b” that was the lowest LLC in the work file WK7 have been moved to the top in the work file WK8. In the work file WK7, the parent item number "C", which had records of child item numbers in the order of "b" and "D", is reversed because the uppercase letters come first in ascending order.

Then, the CPU 10 reads the cost (either the latest cost or the latest loading cost) corresponding to the child item number having the same parent item number in the work file WK8 from the manufacturing item master DB2 and sums them. ,
The result is written as the latest accumulation cost of the record corresponding to the parent item number in the production item master DB 2 (cost accumulation: step 9). At this time, the CPU 10 clears both the cost recalculation F and the costing recalculation F of the corresponding record to “0”.

FIG. 15 is a block diagram showing the configuration of a recording medium according to the present invention. The computer program exemplified here (referred to as a program in FIG. 15) includes the processing of steps 1 to 5 shown in FIG. 9 and is recorded on a recording medium described below.

In FIG. 15, a recording medium Ma that is connected online to the production management apparatus 1 is, for example, a server computer on the LAN 3 installed separately from the installation location of the production management apparatus 1. Is recorded. Then, the computer program Pa read from the recording medium Ma controls the production management device 1 so that the production management device 1 executes the processing as described above.

The recording medium provided inside the production management device 1 is configured as the HDD 11 in the present embodiment, and the computer program Pb as described above is recorded on the HDD 11. Then, the computer program Pb read from the HDD 11 controls the production management device 1 so that the production management device 1 executes the processing as described above.

As described above, the recording medium Mc that is used by being loaded into the ROM drive 13 provided in the production management apparatus 1 is, for example, a CD-ROM or a DVD-ROM that can be transported.
The computer program Pc as described above is recorded on the recording medium Mc. The computer program Pc read from the recording medium Mc controls the production management device 1 so that the production management device 1
Performs the processing as described above.

[0064]

As described in detail above, in the production management apparatus according to the present invention and a computer-readable recording medium such as the production management apparatus, the relationship between the parent part and the child part as described above is first article. And as a second article,
A parent component relationship between a component and one or more child components is stored in a database such as a component configuration master. Further, production technology information of each part is stored in each database such as a process procedure master, a process master, and a process specification file.

The first recognizing means recognizes, based on the database, that the production technology information of a part has been changed.
On the other hand, the second recognizing means recognizes, based on the database, that the production technology information of the child part forming the certain part or the combination (part configuration or the like) of the child part forming the certain part has been changed. Then, the cost of the certain part stored in the database is calculated without depending on the cost of the child part according to the combination of the recognition results of the changes by the two recognition means (single part calculation).
The determination means determines whether to perform the calculation of the certain part or to calculate the cost (stacking calculation) depending on the cost of the child part (calculated earlier). Therefore, according to the present invention, the cost recalculation of the lower layer components that do not require the cost recalculation can be excluded from the target, and the processing time at the time of the cost recalculation can be greatly reduced.

Further, in the present invention, the parent-child relationship of the parts extends over a plurality of hierarchies, and the database stores information indicating the parent-child relationship of the parts over the plurality of hierarchies. If the (first article) forms a different part, the hierarchy in the part configuration of this part is specified based on a database such as a parts table. Further, when the certain component exists in a plurality of different hierarchies, a component having the lowest hierarchy is selected from the hierarchies, and each recognition and determination as described above is performed by each component in a higher hierarchy than the selected hierarchy. Repeat for Therefore, it is possible to reliably recalculate the target components in order from the lowest level.

Further, in the present invention, since the former function of the above two inventions is configured as a recording medium, a computer program corresponding to such a function is read by a computer or the like. The present invention has excellent effects, for example, it is possible to realize the production management device according to the present invention.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a production management device according to the present invention and a configuration of a network to which the production management device is connected.

FIG. 2 is an explanatory diagram for describing a configuration example of a component handled in the present embodiment.

FIG. 3 is a diagram illustrating an example of storage contents of a component configuration master;

FIG. 4 is a diagram showing an example of storage contents of a production item master.

FIG. 5 is a diagram showing an example of contents stored in a process procedure master.

FIG. 6 is a diagram showing an example of stored contents of a process master.

FIG. 7 is a diagram showing an example of storage contents of a process specification file.

FIG. 8 is a flowchart for explaining a flag recognized by the production management device according to the present invention.

FIG. 9 is a flowchart showing processing contents of a CPU of the production management device according to the present invention, which is involved in cost calculation.

FIG. 10 is a diagram showing an example of the storage contents of a work file.

FIG. 11 is a diagram showing an example of the storage contents of a work file.

FIG. 12 is a diagram showing an example of the storage contents of a work file.

FIG. 13 is a diagram showing an example of the storage contents of a work file.

FIG. 14 is a table showing correspondence between processing conditions and processing contents in step 2;

FIG. 15 is a block diagram illustrating a configuration of a recording medium according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Production management apparatus 10 CPU 11 HDD (recording medium) 12 RAM DB1 Parts configuration master DB2 Manufacturing item master DB3 Process procedure master DB4 Process master DB5 Process specification file WK1-WK8 Work file Ma, Mc Recording medium Pa, Pb, Pc Computer program (program)

Claims (3)

[Claims] 1. A database which stores information indicating a relationship between a first article and one or a plurality of second articles constituting the first article, and production technology information of each article. First recognition means for recognizing that information has been changed based on the database, and second recognition means for recognizing based on the database that production technology information of the second article or a combination of the second articles has been changed. And the cost of the first article stored in the database without depending on the cost of the second article or the cost of the first article as the cost of the second article, depending on the combination of the recognition results by the two recognition means. A determination means for determining whether to perform the calculation depending on the update. 2. The relationship between the first article and the second article is over a plurality of levels, and the database stores information indicating the relationship between the first article and the second article over the plurality of levels. When the first article constitutes a different article, the hierarchy in the component configuration of the first article is specified based on the database, and further, when the first article exists in a plurality of different hierarchies. 2. The production management apparatus according to claim 1, further comprising: means for selecting a lowest hierarchical level from among the selected hierarchical levels, so that each recognition and determination is repeated for each article higher in the hierarchy than the selected hierarchy. . 3. Based on information indicating a relationship between a first article and one or a plurality of first articles constituting the first article, and contents of a database storing production technology information of each article,
Program code means for causing a computer to recognize that the production technology information of the first article has changed, and program code means for causing the computer to recognize that the production technology information of the second article or the combination of the second articles has changed. And, depending on the combination of the results recognized by the two program code means, the cost of the first article stored in the database without depending on the cost of the second article or the cost of the first article. And a program code means for determining whether or not to perform a calculation depending on the cost of the second article. A computer-readable recording medium having recorded thereon a program.