JP2003256204A - Design support method, design support device and design support program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare an event flow under the consideration of requested quality. <P>SOLUTION: A developer inputs a use case, an event flow, an exception flow, and an actor determined from requirement specifications to a design support device. Also, the developer inputs requested quality determined from the requirement specifications. The design support device introduces the additional function or quality elements of the system to be developed based on the inputted requested quality, and prepares and displays a requested quality and additional function matrix graphic or the like. The design support device changes the event flow or exception flow inputted by the developer, and introduces a new event flow or exception flow by using information inputted to the requested quality and additional function matrix graphic or the like, and prepares a use case model graphic including the inputted use case, and displays the use case model graphic or the event flow and exception flow or the like. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design support method, a design support apparatus, and a design support program for supporting system design during system development.

[0002]

2. Description of the Related Art With the spread of communication networks and the advance of hardware technology, the software developed is becoming larger and more complex. Object-oriented technology is often used for large-scale and complicated software development. In software development using object-oriented technology, a method of analyzing and designing a system using a use case model diagram is adopted.

The use case model diagram describes the functions to be provided by the system to be developed and the external environment of the system. An example of a use case model diagram is shown in FIG. In the use case model diagram, the function that the system should provide is called a use case and is represented by an ellipse. The external environment is called an actor and is represented by a line drawing in the shape of a person.
Examples of actors include users of the system, but not limited to humans, hardware, external systems, and the like can also be actors. The boundary of the system (the boundary between the use case and the actor) is represented by a rectangle. The model shown in the use case model diagram is called a use case model.

The developer creates a use case model from the required specifications of the system. In addition, create an event flow that shows the basic flow of the use case process and an exception flow that shows the exceptional flow of the process. Then, the system is analyzed using the use case model, event flow, exception flow, and the like.

The use case model has the following features. (1) The system can be expressed and clearly expressed from the viewpoint of the user of the system for easy understanding.
Therefore, it becomes easy for the user and the developer to discuss using the use case model diagram and confirm whether or not the developer appropriately grasps the request of the user. For example, the user can confirm the use case model, which is the first model created from the requirement specification, and evaluate whether or not the requirement is reflected before the system is actually made. Moreover, the model can be easily changed.

(2) In the use case model, if the behavior of the system is to be changed, the actors and use cases may be recreated. When there is a new request from the user, the developer can directly know where to change by showing the use case model diagram and asking the user which use case to change. The developer should recreate the use case and change the system according to the new demand. Such changes can reflect what the user wants to achieve with the system.

(3) The function specified by the use case is described logically and robustly. It is also described so that it does not depend on the implementation environment. That is, it is described as a stable model even if there is a change.

(4) When the use case is analyzed and described in detail, the developer has to investigate the function of the system in detail, so that the unclear part of the requirement specification can be clarified. Therefore, unclear points in the required specifications can be identified at an early stage.

(5) When creating a use case model, the use case is defined while paying attention to a certain limited part of the system. That is, use cases are defined for each functional area of the system, and then the use cases are integrated to create a complete use case model. In this way, if the use case is defined by focusing on each function, it is possible to work on each part in parallel.

[0010]

Conventionally, when creating a use case model, event flow, and exception flow,
We paid attention to the required functions, but did not pay attention to the required quality. Therefore, there was room to improve the quality of the system at the design stage.

The present invention provides a design support method, a design support apparatus, and a design support program capable of presenting a use case model by creating an event flow and an exception flow while paying attention to required quality. With the goal.

[0012]

A design support method according to the present invention is a design support method for supporting the design of a system by providing an event flow, an exception flow, and a use case model. The system use case defined by the user, the event flow, the exception flow, the actor, and the required quality required by the system are input, and a new event flow is created using the input event flow and the required quality. A new exception flow is created using the input exception flow and the required quality, and a use case model including the input use case and actor is created.

For example, based on the input required quality, an additional function to be realized to satisfy the required quality is derived,
A new event flow is created using the additional function information and the input event flow, and a new exception flow is created using the additional function information and the input exception flow.

Then, of the additional function information derived from the required quality, a new event flow and a new exception flow are created using the additional function information designated by the developer.

Further, based on the input required quality, a quality element indicating the classification of the quality required for the system is derived, and a new event flow created by using the information of the additional function and the input event flow, The quality element information is used for modification, and the new exception flow created using the additional function information and the input exception flow is modified using the quality element information.

Then, of the quality element information derived from the required quality, the newly created event flow and the newly created exception flow are changed using the quality element information designated by the developer.

Further, it is preferable to create a new actor using the input event flow, exception flow, or required quality, and to include the actor specified by the developer among the new actors in the use case model. With such a method, a new actor can be presented to the developer.

The design support apparatus according to the present invention is a design support apparatus that supports the system design by providing an event flow, an exception flow, and a use case model, and is defined by the system developer. Input data for use case event flow, exception flow, and required quality required by the system, and create new event flow and exception flow using the input event flow, exception flow, and required quality information. It is characterized by comprising means and model creating means for inputting a use case and an actor of the system defined by a system developer and creating a use case model including the input use case and actor.

The design support program according to the present invention causes a computer to execute an event flow, an exception flow,
A design support program for providing a use case model, in which an event flow of a use case defined by a system developer, an exception flow, and a required quality required by the system are input to a computer, and the input event flow is input. , Exception flow, and the ability to create new event flow and exception flow using the required quality information,
It is also characterized by realizing the function of inputting the use case and actor of the system defined by the system developer and creating a use case model including the input use case and actor.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the example shown below, the case of developing a system for managing lending of information equipment will be described as an example.
FIG. 1 is a block diagram showing an embodiment of a design support device according to the present invention. The design support device 1 is connected to the terminal 101 via the communication network 100. Control unit 2
Operates according to the design support program 4 stored in the storage device 3. The design support program 4 is a program that causes the control unit 2 to execute various processes shown in this example, such as creation of a use case model. The word database 5 holds various words for expressing an additional function described later.
The control unit 2 controls the word database 5 according to a predetermined rule.
Extract a word from. Network interface unit 6
Exchanges information with the terminal 101 via the communication network 100.

The developer inputs various kinds of information such as quality required for the system to be developed (hereinafter referred to as required quality) to the design support apparatus 1 via the terminal 101. In addition to the required quality, the information input to the design support device 1 includes a use case, an event flow, an exception flow, an actor, etc. defined by the developer himself. Further, as will be described later, the design support device 1 displays various matrix diagrams on the terminal 101.
To display. The information input to these various matrix diagrams is also input to the design support device 1. The design support device 1
A use case model, a new event flow, a new exception flow, etc. are created based on the information input via the terminal 101. Then, the created information is displayed on the terminal 101.

FIG. 2 is a use case entered by the developer.
Examples of event flow, exception flow, and actor are shown below. Figure 2
As shown in, the event flow is input as each item indicating the basic flow of processing. The exception flow is also input as each item indicating the exceptional flow.

FIG. 3 is a block diagram showing an example of various processing executing means of the design support apparatus 1. Each means shown in FIG.
Both are realized by the control unit 2 that operates according to the design support program 4.

The matrix diagram creating means 11 is a terminal 101.
Create a matrix diagram in which the required qualities input from are arranged as columns (or rows) and the additional functions of the system to be developed are arranged as rows (or columns). Less than,
This matrix diagram is referred to as a required quality and additional function matrix diagram. FIG. 4 shows an example of the required quality and additional function matrix diagram. It is the developer who determines the items that will be the required quality. On the other hand, the items to be the additional functions are created by the matrix diagram creating means 11 by extracting words from the word database 5. The additional function is a function that should be realized to satisfy the required quality and is derived from the required quality.

Further, the matrix diagram creating means 11 arranges the required qualities as columns (or rows) and arranges the items (hereinafter referred to as quality elements) which are the quality categories as rows (or columns). To create. Hereinafter, this matrix diagram will be referred to as a required quality and quality element matrix diagram. FIG. 5 shows an example of the required quality and quality factor matrix diagram.
As shown in FIG. 5, quality factors include various items such as "easy final confirmation" and "easy error confirmation".
The quality factor is registered in the word database 5 in advance. The matrix diagram creating means 11 extracts quality elements from the word database 5 according to the input required quality.
Although symbols are shown in the matrix diagrams illustrated in FIGS. 4 and 5, these symbols are input by the developer.

The event flow creating means 14 creates a matrix diagram in which items of the event flow are arranged as columns (or rows) and additional functions are arranged as rows (or columns). Hereinafter, this matrix diagram will be referred to as an event flow and additional function matrix diagram. When creating the event flow and the additional function matrix diagram, the event flow creating means 14 creates a new event flow based on the input event flow and the like.

The event flow creating means 14 similarly
Create a matrix diagram where each item of the event flow is arranged as a column (or row) and quality elements are arranged as a row (or column). Hereinafter, this matrix diagram is referred to as an event flow and quality element matrix diagram.

The exception flow creating means 15 creates a matrix diagram in which the items of the exception flow are arranged as columns (or rows) and the additional functions are arranged as rows (or columns).
Hereinafter, this matrix diagram is referred to as an exception flow and additional function matrix diagram. When creating the exception flow and the additional function matrix diagram, the exception flow creating means 15 creates a new exception flow based on the input exception flow and the like.

Similarly, the exception flow creating means 15 creates a matrix diagram in which the items of the exception flow are arranged as columns (or rows) and the quality elements are arranged as rows (or columns). Hereinafter, this matrix diagram is referred to as an exception flow and quality factor matrix diagram.

The actor creating means 12 creates a new actor according to the input information (event flow, exception flow, required quality, etc.). Then, a matrix diagram is created in which the actors are arranged in columns (or rows) and the additional functions are arranged in rows (or columns). Hereinafter, this matrix diagram will be referred to as an actor and additional function matrix diagram. Further, the actor creating unit 12 creates a matrix diagram in which the actors are arranged in columns (or rows) and the quality elements are arranged in rows (or columns). Hereinafter, this matrix diagram will be referred to as an actor and quality element matrix diagram.

The use case acquisition means 13 acquires the use case defined by the developer from the terminal 101. The use case model creating means 16 creates a use case model using the actors created by the actor creating means 12.
The display unit 20 displays various matrix diagrams, use case model diagrams, and the like on the terminal 101. The display means 20 displays various matrix diagrams so that the developer can change the display items and add or delete columns or rows.

Next, the operation will be described. FIG. 6 is an explanatory diagram showing an example of the processing progress of the design support device 1. First, the developer determines what functions are required for the system based on the requirement specifications, and defines the use case. Furthermore, the event flow and exception flow of use cases are defined. The developer inputs the use case, event flow, and exception flow defined based on the requirement specifications into the design support device 1 via the terminal 101. Here, it is assumed that the use case, event flow, and exception flow items shown in FIG. 2 are input. The use case acquired by the developer is input to the use case acquisition unit 13. Each item of the event flow and the exception flow is input to the event flow creating means 14 and the exception flow creating means 15 (step S1).

Further, the developer defines the actor based on the required specifications. The developer inputs the actor into the design support device 1 via the terminal 101. The actor defined by the developer is input to the actor creating unit 12 (step S
2).

Next, the administrator inputs the required quality defined by the required specifications into the design support apparatus 1 via the terminal 101.
The matrix diagram creating means 11 creates a required quality and an additional function matrix diagram using the inputted required quality (step S3). At this time, the matrix diagram creating means 1
1 extracts a word from the word database 5 according to a predetermined rule to determine an additional function.

For example, if the words "process" and "easy to perform" are included in the "requested quality, event flow, or exception flow", "registration confirmation", "duplication confirmation", "final confirmation" , And the word “corrected”. ] Rule is established. In this case, if the required quality including items such as "easy to lend" is input, the matrix diagram creating means 11 causes the "registration confirmation", "duplication confirmation", "final confirmation", and "correction".
Is extracted from the word database 5. Also,
The number of rules is not limited to one, and if the requested quality includes the words “lending information device” and “lending process”, the word “device borrower” is extracted. Other rules, such as ", have also been established. The matrix diagram creating means 11 extracts words according to the input required quality and the like,
Each word is combined to create an additional function such as "duplicate confirmation of device borrower" illustrated in FIG.

The matrix diagram creating means 11 creates the required quality and additional function matrix diagram as illustrated in FIG. 4 by using the required quality and the created additional function.
At this time, the matrix diagram creating means 11 performs step S1.
Include the use case information entered in step 3. In the example shown in FIG. 4, the use case “rental of rental information device” is included in the matrix diagram.

The display means 20 displays the required quality and the additional function matrix diagram on the terminal 101 so that the content of the additional function can be changed and the additional function can be added or deleted. The developer confirms the required quality and additional function matrix diagram, and changes the content of the additional function, deletes unnecessary additional functions, adds new additional functions, etc. to obtain the required quality and additional function matrix. Correct the figure. In some cases, the contents of the additional functions defined by the matrix diagram creating means 11 may not be appropriate. For example, the word combinations may be unnatural and make no sense. In such a case, the developer may modify the content of the additional function. Alternatively, a column showing an inappropriate additional function may be deleted. Additional columns may be added to define additional functionality. Design support device 1
Acquires the content of the modified additional function from the terminal 101.

Further, the developer inputs information indicating the degree of importance of the additional function in the required quality and additional function matrix diagram. For example, if the additional function of "confirm before lending person's name registration" is important in the required quality of "accurate lending processing", mark "◎" in the column where both items intersect. input. Similarly, enter information indicating the degree of importance in each field. For example, “⊚”, “∘”, “Δ” or the like is input in each column according to the degree of importance. “⊚” indicates that the degree of importance is high, and the degree of importance is low in the order of “◯” and “Δ”. If the degree of importance is low, no input is required. The design support device 1 acquires the information of this importance from the terminal 101.

Subsequently, the matrix diagram creating means 11 creates the required quality and the quality element matrix diagram (step S).
4). At this time, the matrix diagram creating means 11 extracts a word from the word database 5 according to a predetermined rule to determine a quality factor. For example, if the word "lending" is included in the required quality, the words "ease of final confirmation", "ease of understanding", and "ease of management" are extracted. ] Rule is established. When the required quality including the items such as “easy to rent out” illustrated in FIG. 4 is input, the matrix diagram creating means 11 follows the rules to “easy final confirmation”, “easy to understand”,
Extract words such as "easy to manage". Also, the number of rules is not limited to one, and if there are other rules, words that are quality factors are extracted according to those rules. The matrix diagram creating means 11 may correct the extracted words. For example, when the word “easy management” is extracted, a word as a keyword may be added to the word and corrected to “easy lending management”.

The matrix diagram creating means 11 creates a required quality and quality element matrix diagram as illustrated in FIG. 5 by using the required quality and quality elements. At this time, the matrix diagram creating means 11 also includes the use case information input in step S1 in the matrix diagram. In the example shown in FIG. 5, the use case “rental of rental information device” is included in the matrix diagram.

The display means 20 displays the required quality and the quality factor matrix diagram on the terminal 101. At this time, the display means 20 may display so that the quality element can be changed, added, deleted, etc., as in the case of displaying the required quality and additional function matrix diagram. Further, as in the case described above, the developer inputs information indicating the importance of quality elements in the required quality and quality element matrix diagram. Design support device 1
Acquires the input importance information from the terminal 101.

Next, the actor creating means 12 determines whether or not to create a new actor based on the information (event flow, exception flow, required quality, etc.) input by the developer. If there is an actor to be newly created, that actor is created. The actor creating means 12 creates a new actor according to a predetermined rule. For example,
If there is a description in the event flow that "B is done by A.", "A" will be the actor. , Etc., create a new actor.

Then, the actor creating means 12 creates an actor and additional function matrix diagram (step S).
5). FIG. 7 shows an example of an actor and additional function matrix diagram. Although FIG. 7 shows the case where only the “person in charge of lending” input in step S2 is the actor, when a new actor is created, that actor is also included in the matrix diagram. The display means 20 causes the terminal 101 to display the actor and additional function matrix diagrams. As in the case described above, the developer inputs information indicating the importance of the actor into the actor and the additional function matrix diagram. The design support device 1 acquires the input importance level information from the terminal 101.

Subsequently, the actor creating means 12 creates an actor and quality element matrix diagram (step S6).
FIG. 8 shows an example of an actor and quality element matrix diagram.
When a new actor is created, that actor is also included in the actor and quality factor matrix diagram. Display means 20
Causes terminal 101 to display the actor and quality factor matrix diagram. As in the case described above, the developer inputs information indicating the importance of actors into the actor and quality factor matrix diagrams. The design support device 1 acquires the input importance level information from the terminal 101. In steps S5 and S6,
If “⊚”, which indicates high importance, is entered in the field corresponding to a new actor, that actor will be used in the finally created use case model.

Following step S6, the event flow creating means 14 creates an event flow and an additional function matrix diagram, and the exception flow creating means 15 creates an exception flow and an additional function matrix diagram (step S).
7).

First, the event flow and the creation of the additional function matrix diagram will be described. FIG. 9 shows an example of an event flow and an additional function matrix diagram. The additional functions shown in this matrix diagram are the additional functions defined in step S3. The event flow creating unit 14 corresponds to the item of the event flow input in step S1 and the column in which “◎” indicating high importance is input in the required quality and additional function matrix diagram illustrated in FIG. The items of the new event flow are derived from the items (required quality and additional functions) to be performed. For example, in FIG.
It is assumed that the information indicating the degree of importance is input as shown in. In this case, since "◎" is entered in the field of "Confirm before registering name of lending staff", words such as "name of lending staff" and "confirmation" are extracted. “When the word“ confirmation ”is obtained,“ confirmation screen display ”is extracted. ]
If there is such a rule, the word “confirmation screen display” may be extracted from the word database 5. From these words, items such as “display confirmation screen of name of person in charge of lending” are derived. The event flow creating means 14 creates a new event flow by adding the newly introduced item to the item of the event flow input in step S2 or replacing the item input in step S2. Then, an event flow including the new event flow and an additional function matrix diagram are created.

The event flow creating means 14 also includes the use case information input in step S1 in the matrix diagram. In the case of this example, as shown in FIG. 9, the information of the use case “rental of rental information device” is included.

The display means 20 causes the terminal 101 to display the event flow and the additional function matrix diagram. At this time, the display unit 20 displays the required quality and additional function matrix diagram so that the items of the event flow can be changed, added, deleted, and the like, as in the case of displaying the required quality and additional function matrix diagram. In addition, the developer inputs information indicating the importance of the additional function in the event flow and the additional function matrix diagram. The design support device 1 acquires the input importance level information from the terminal 101.

Next, the exception flow creating means 15 creates an exception flow and an additional function matrix diagram. Figure 10
Shows an example of an exception flow and additional function matrix diagram. The additional functions shown in this matrix diagram are the additional functions defined in step S3. The exception flow creating means 15 corresponds to the item of the exception flow input in step S1 and the column in which “◎” indicating high importance is input in the required quality and the additional function matrix diagram illustrated in FIG. Items (Required quality and additional functions)
The new exception flow item is derived from. For example, in FIG. 4, the word “rental” is extracted because “⊚” is entered in the field of the item “confirmation of duplicate loan”. Also,
"When the word" lending "is obtained, the word" lending "is used preferentially. , Etc., if there is a rule such as
“If already registered, another rental information device No.
Change the item "input screen display of other lending information device No. if already rented". Then, a new exception flow including these items is added to the event flow and the additional function matrix diagram to create the exception flow and the additional function matrix diagram.

The exception flow creating means 15 also includes the use case information input in step S1 in the matrix diagram.

The display means 20 causes the terminal 101 to display the exception flow and the additional function matrix diagram. At this time,
Similar to the case of displaying the required quality and additional function matrix diagram, the display unit 20 displays so that the items of the exception flow can be changed, added, deleted, and the like. Also, the developer
Input the information indicating the importance of the additional function in the exception flow and the additional function matrix diagram. The design support device 1 acquires the input importance level information from the terminal 101.

Following step S7, the event flow creating means 14 creates an event flow and quality element matrix diagram, and the exception flow creating means 15 creates an exception flow and quality element matrix diagram (step S8).

First, the creation of the event flow and the quality element matrix diagram will be described. FIG. 11 shows an example of an event flow and quality element matrix diagram. The quality factor shown in this matrix diagram is the quality factor defined in step S4. Further, the event flow creating unit 14 includes items (required quality and quality elements) corresponding to the fields in which “⊚” is entered in the required quality and quality element matrix diagram illustrated in FIG. 5, and the event flow illustrated in FIG. 9. And from the items (event flow items and additional functions) corresponding to the fields in which “⊚” is input in the additional function matrix diagram, new event flow items are derived according to a predetermined rule. Depending on the rule, a new event flow may not be guided. FIG. 11 shows an example of a matrix diagram created by using the same event flow items as in FIG. 9 without introducing a new event flow. The event flow creating unit 14 also includes the use case information input in step S1 in the matrix diagram.

The display means 20 displays the event flow and the quality element matrix diagram on the terminal 101. At this time, the display unit 20 displays the required quality and additional function matrix diagram so that the items of the event flow can be changed, added, deleted, and the like, as in the case of displaying the required quality and additional function matrix diagram. In addition, the developer inputs information indicating the importance of the quality element in the event flow and the quality element matrix diagram. Design support device 1
Acquires the input importance information from the terminal 101.

Next, the exception flow creating means 15 creates an exception flow and a quality element matrix diagram. Figure 12
An example of an exception flow and a quality element matrix diagram is shown. The quality factor shown in this matrix diagram is the quality factor defined in step S4. In addition, the exception flow creating means 14 includes items (required quality and quality elements) corresponding to the fields in which “⊚” is input in the required quality and quality element matrix diagram illustrated in FIG. 5, and the exception flow illustrated in FIG. 10. And from the items (exception flow items and additional functions) corresponding to the fields in which "◎" is entered in the additional function matrix diagram,
Guide a new exception flow item according to given rules.
For example, as shown in FIG. 5, when "⊚" is entered in "easy error confirmation" and "acceptance of each erroneous operation", it is determined that the exception flow should be described in more detail. Based on this determination, the item “Display input screen of other lending information device No. if already lent” shown in FIG. 10 is set to “Other lending information device if the entered lending information device No. is not registered. No. input screen display ”.
Instead of the word “already lent”, words such as “input loan information device No.” are extracted from the word database 5 according to a predetermined rule.

Exception flow creating means 15 creates an exception flow and quality element matrix diagram by adding an exception flow item to the event flow and quality element matrix diagram. The display unit 20 displays the exception flow and the quality element matrix diagram on the terminal 101. At this time, the display means 2
0 is displayed so that the items of the exception flow can be changed, added, deleted, etc. as in the case of displaying the required quality and additional function matrix diagram. In addition, the developer inputs information indicating the importance of the quality element in the exception flow and the quality element matrix diagram. The design support device 1 acquires the input importance level information from the terminal 101.

In steps S1 to S8, the case where the event flow or the like corresponding to the use case shown in FIG. 2 is input has been described. If the developer also defines other use cases, event flows, etc. from the required specifications, those data are also input to the design support device 1, and steps S1 to S are performed.
The same process as 8 is performed.

If the developer has performed the processing up to step S8 for each use case defined from the required specifications,
The use case model creating means 16 creates a use case model (step S9). For example, it is assumed that, in addition to the data illustrated in FIG. 2, a use case of “return of lending information device”, an event flow according to the use case, and the like are input, and the processes up to step S8 are performed. In this case, the use case model creating means 16
A use case model is created that indicates the use cases such as "lending of rental information device" and "return of rental information device", the system including these use cases, and the actor input in step S2. In steps S5 and S6,
If "◎" is entered in the field corresponding to the newly created actor, the newly created actor is also included in the use case model. The display unit 20 displays the created use case model on the terminal 101. FIG. 13 shows an example of the displayed use case model.

In addition to the use case model diagram, the display unit 20 also displays the event flow and quality element matrix diagram created in step S8, and the exception flow and quality element matrix diagram. At this time, the information of the importance input by the developer is also displayed.

According to the present invention, an event flow or an exception flow is created using the input required quality. Therefore,
The use case model diagram can be presented to the developer along with the event flow and exception flow focusing on quality. as a result,
The developer can improve the quality of the system at the design stage.

In this example, the data creating means and the model creating means are realized by the control unit 2 and the network interface unit 5 shown in FIG.

Further, the storage device 3 inputs the event flow of the use case defined by the system developer, the exception flow, and the required quality required for the system into the computer, and the input event flow, exception flow, And a function to create a new event flow and exception flow using the required quality information, and input the use cases and actors of the system defined by the system developer, and use case models including the input use cases and actors. Holds a design support program for realizing the function to be created.

In the above example, a case has been shown in which new data (for example, an event flow) is created by referring to the data of the item in which “⊚” is input as the information indicating the importance. It is also possible to refer to not only “⊚” but also items for which “◯” and “Δ” are input.

In each of the above examples, when information such as "◎", "○", and "△" indicating the degree of importance is entered, the item corresponding to the entered column is displayed separately from other items. May be. For example, as illustrated in FIG. 9, the color of the column of the item in which “⊚” is input may be displayed in a color different from the others.

The present invention presents the requirement quality and additional function matrix diagram in which the required qualities are arranged in columns or rows and the information of the additional functions is arranged in rows or columns,
Requirement quality and additional function matrix A new event flow and a new exception flow may be created using the information on the required quality and additional function corresponding to the fields designated by the developer in the diagram.

Further, the required quality and quality element matrix diagram in which the required qualities are arranged in columns or rows and the information of the quality elements is arranged in rows or columns is presented to the developer, and developed in the required quality and quality element matrix diagrams. Select the required quality and quality element information corresponding to the fields specified by the user, arrange the newly created event flow items as columns or rows, and arrange the additional function information as rows or columns. And present the additional function matrix diagram to the developer, select the event flow item and the additional function information corresponding to the fields specified by the developer in the event flow and additional function matrix diagram, and select the required quality and Information on required quality and quality elements selected from the quality element matrix diagram, and event selected from the event flow and additional function matrix diagram. Change the newly created event flow using the flow items and additional function information, arrange the newly created exception flow items as columns or rows, and add the additional function information as rows or columns. Present the placed exception flow and additional function matrix diagram to the developer, and select the exception flow item and additional function information corresponding to the column specified by the developer in the exception flow and additional function matrix diagram. , Information on required quality and quality elements selected from the required quality and quality element matrix diagram,
The newly created exception flow may be modified by using the exception flow item and the additional function information selected from the exception flow and additional function matrix diagram.

[0067]

According to the design support method of the present invention, a new event flow is created using the input event flow and the required quality, and a new exception flow is created using the input exception flow and the required quality. Since it is created, it is possible to create an event flow or exception flow focusing on quality.
Then, the use case model diagram can be presented to the developer together with the event flow, the exception flow, and the exception flow. As a result, the developer can improve the quality of the system at the design stage.

According to the design support apparatus of the present invention, the event flow of the use case defined by the system developer, the exception flow, and the required quality required for the system are input,
Since the data creation means that creates a new event flow and exception flow using the input event flow, exception flow, and required quality information is provided, it is possible to create an event flow or exception flow that focuses on quality. .

According to the design support program of the present invention, the event flow of the use case defined by the system developer, the exception flow, and the required quality required by the system are input to the computer, and the input event flow, Since the function of creating a new event flow and exception flow using the information of the exception flow and the required quality is realized, it is possible to create the event flow and the exception flow focusing on quality.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of data input by a developer.

FIG. 3 is a block diagram showing an example of processing execution means of the design support apparatus.

FIG. 4 is an explanatory diagram showing an example of a required quality and an additional function matrix diagram.

FIG. 5 is an explanatory diagram showing an example of a required quality and a quality element matrix diagram.

FIG. 6 is an explanatory diagram showing an example of the processing progress of the design support device.

FIG. 7 is an explanatory diagram showing an example of an actor and an additional function matrix diagram.

FIG. 8 is an explanatory diagram showing an example of an actor and quality element matrix diagram.

FIG. 9 is an explanatory diagram showing an example of an event flow and an additional function matrix diagram.

FIG. 10 is an explanatory diagram showing an example of an exception flow and an additional function matrix diagram.

FIG. 11 is an explanatory diagram showing an example of an event flow and a quality element matrix diagram.

FIG. 12 is an explanatory diagram showing an example of an exception flow and a quality element matrix diagram.

FIG. 13 is an explanatory diagram showing an example of a use case model diagram.

FIG. 14 is an explanatory diagram showing an example of a use case model diagram.

[Explanation of symbols]

1 Design support device 2 control unit 3 storage devices 4 Design support program 5 word database 101 terminal

Claims (8)

[Claims] 1. A design support method for supporting system design by providing an event flow, an exception flow, and a use case model, the system use case defined by a system developer,
Input the event flow, exception flow, actor, and required quality required for the system, create a new event flow using the input event flow and required quality, and input the exception flow and required quality. A design support method characterized in that a new exception flow is created by using it, and a use case model including the input use case and actor is created. 2. An additional function to be realized to satisfy the required quality is derived based on the input required quality, and a new event flow is created using the information of the additional function and the input event flow. The design support method according to claim 1, wherein a new exception flow is created using the information of the additional function and the input exception flow. 3. The new event flow and the new exception flow are created by using the information on the additional function specified by the developer among the information on the additional function derived from the required quality. Design support method. 4. A new event flow created by deriving a quality element indicating a classification of quality required for a system based on the input required quality and using the information of the additional function and the input event flow, The method according to claim 2 or 3, wherein the quality factor information is used to change, and a new exception flow created using the additional function information and the input exception flow is used to be changed using the quality factor information. Design support method. 5. The newly created event flow and the newly created exception flow are changed by using the quality element information designated by the developer among the quality element information derived from the required quality. Design support method described in. 6. The input event flow, exception flow,
Alternatively, the design support according to claim 1, wherein a new actor is created using the required quality, and the actor specified by the developer among the new actors is included in the use case model. Method. 7. A design support device for supporting system design by providing an event flow, an exception flow, and a use case model, wherein a use case event flow defined by a system developer and an exception are provided. The flow and the required quality required for the system are input, and the data creator that creates the new event flow and exception flow using the input event flow, exception flow, and required quality information, and the system developer. A design support apparatus comprising: a model creating unit that inputs a use case and an actor of a defined system and creates a use case model including the input use case and actor. 8. A design support program for causing a computer to provide an event flow, an exception flow, and a use case model, wherein the computer includes a use case event flow and an exception flow defined by a system developer. A function that inputs the required quality required for the system and creates a new event flow and exception flow using the input event flow, exception flow, and required quality information, and the system use defined by the system developer. A design support program for realizing the function of inputting cases and actors and creating a use case model including the input use cases and actors.