JP2002222080A - Software estimation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that it is complicated to master a measurement rule and extract function information following the rule since a conventional software estimation system using a function point needs to follow an ordinary function point measuring procedure. SOLUTION: A function information storage part 2 is stored with function information on software, and function information of a software project to be developed is selected from the function information stored in the function information storage part 2. A function quantity computing part 5 computes the function quantity of the software project by using the selected function information to estimate the operation man-hour and operation cost from the computed function quantity. An alarm message display part 15 generates an alarm when a planned value exceeds an estimated value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a software estimating system for estimating the amount of work, cost and the like in software development.

[0002]

2. Description of the Related Art In order to avoid delays in development schedules and excess costs in software development work, it is necessary to accurately estimate the scale of development, the amount of work, and costs, and to make an appropriate work plan in accordance with the estimates. is there. Estimation of the amount of work includes an estimation method based on the experience of the developer, an estimation method based on the number of actual steps in the past of similar development, and the like. However, the estimation know-how is only for the person in charge of estimation and cannot be used by others. In addition, the estimation based on the number of steps has a problem that it cannot be used when the development language or environment is different.

[0003] To solve these problems, there is a method of estimating the scale using function points. In the function point method, the scale is calculated based on a certain rule. Therefore, if the calculation rule is learned, anyone can estimate the scale, and the estimation process is clear. However, in order to use function points, it is necessary to learn measurement rules. Further, since the normal function point measurement rule is expressed in an abstract manner, there may be a difference in the measured value depending on the measurer. For example, JP
In JP-A-203351, a function point is used to obtain basic information necessary for estimating a man-hour in a work man-hour estimating apparatus, a method thereof, and a recording medium on which a program is recorded. Follows the normal function point measurement procedure.

[0004] This will be described below with reference to FIGS. 7 to 9. FIG. 7 is a diagram showing a functional specification in a conventional project for which the number of man-hours is estimated. In FIG. 7, reference numeral 55 denotes a function specification, which shows a user registration screen and a user registration function. FIG. 8 is a diagram illustrating a conventional method of calculating the total amount of functions in a project for which work man-hours are to be estimated. In FIG. 8, reference numeral 56 denotes a function read from the function specification 55. FIG. 9 is a schematic diagram showing a process of calculating a total function amount in a conventional project for which the number of man-hours is estimated. 9, 55 is the same as that in FIG. 57 is a user, 5
8 is the calculated total function amount.

Next, the operation will be described. When the user creates and registers the information of the function specification 55 shown in FIG. 7, the information is read, each function 56 shown in FIG. 8 is created, each function amount is automatically calculated, and all the function amounts are totaled. Thus, a total function amount (function point) 58 is obtained.
That is, as shown in FIG. 9, only the process of calculating the total function amount from the function information is automated, and the creation of the function information is as follows.
It is necessary for the measurer to perform each measurement.

[0006]

However, in the above-described conventional apparatus, it is necessary to follow a normal function point measurement procedure in calculating a function point, and to acquire measurement rules and extract function information according to the rules. There was complexity. In addition, there is a problem that a difference between measurement values for each measurer due to ambiguity of measurement rules cannot be removed. In addition, the information used for measurement is
There is a problem that it is only used for determining the complexity at the time of measurement and cannot be used for the next measurement.

[0007] The present invention has been made to solve the above-described problems, and information necessary for calculating a function point is prepared in advance for each development field.
A primary object of the present invention is to obtain a software estimating system capable of reducing the complexity of measurement rule acquisition and function extraction in accordance with the call, and the difference between measurement values by a measurer.

It is a second object of the present invention to obtain a software estimation system capable of accumulating actual measurement results as information for calculating function points and utilizing its know-how in the next measurement.

It is a third object of the present invention to obtain a software estimating system that collects statistical information of the correlation between function points, development man-hours, and cost actual information, and estimates based on the obtained statistical information. And

[0010]

In a software estimating system according to the present invention, a function information storage unit in which function information of software is stored, and a software developed from the function information stored in the function information storage unit. A function information selection unit for selecting function information of the software project, and a function amount calculation unit for calculating the function amount of the software project using the function information selected by the function information selection unit are provided.

A function information input unit for inputting function information of the software project is provided, and the function amount calculation unit calculates the function amount using the function information input by the function information input unit. Further, the function information stored in the function information storage unit is managed for each development field.

[0012] Further, there is provided a work estimating calculation unit for estimating a work based on the function amount calculated by the function amount calculating unit. In addition, the apparatus further includes a comparing unit that compares the estimated work value estimated by the estimated work calculating unit with a planned value planned in advance, and a warning unit that generates a warning based on a comparison result of the comparing unit.

Further, the work estimation calculating section estimates the number of work steps of the software project. The work estimation calculation unit estimates the work cost of the software project. The work estimation calculation section estimates the outsourcing cost of the software project.

In addition, the function amount of the software project calculated by the function amount calculation unit and the work estimate value calculated by the work estimate calculation unit are stored.
The system includes a project information storage unit for storing, for each development field, a functional amount at the time of completion of a software project and an actual value corresponding to an estimated work value.
The work estimation is performed using the functional quantities and the actual values when the software project in the same development field is completed.

Further, a function amount step number conversion unit for converting the function amount into the number of steps of the development language using the function amount step number conversion table is provided. The function quantity step number conversion table is modified using the function quantity and the number of steps of the completed software project.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a software estimation system according to Embodiment 1 of the present invention. This software estimation system is configured by an information processing device such as a computer. In FIG. 1, 1 is a function information input unit into which function information is input, 2 is a function information storage unit that stores the function information input by the function information input unit 1, and 3 is a function stored in the function information storage unit 2. Function information candidate display sections 4 for displaying information candidates are function information selection and determination sections (function information selection sections) for selecting and determining function information candidates displayed on the function information candidate display section 3. Reference numeral 5 denotes a function amount calculation unit that calculates a function amount from function information, and reference numeral 6 denotes a function amount calculation table used for the function amount calculation of the function amount calculation unit 5.

7 is a project information input unit for inputting project information, 8 is a project information storage unit for storing the project information input by the project information input unit 7 and the functional amount of the project calculated by the functional amount calculating unit 5, 9 is a function amount step number conversion table for converting the function amount into the number of steps. Reference numeral 10 denotes a function amount step number conversion unit that converts the function amount stored in the project information storage unit 8 into a step number using the function amount step number conversion table 9. Reference numeral 11 denotes a work cost estimation calculation unit (work estimation calculation unit) for estimating a work cost with reference to the project information storage unit 8, and reference numeral 12 denotes an estimated cost plan cost comparison unit (comparison unit) for comparing the estimated cost with the planned cost.
Reference numeral 3 denotes a work man-hour estimation calculation unit (work estimation calculation unit) for estimating work man-hours with reference to the project information storage unit 8; is there. Reference numeral 15 denotes a warning message display unit (warning unit) that displays a warning message based on a comparison result between the estimated cost plan cost comparison unit 12 and the estimated man-hour planned man-hour comparison unit 14.

The function information storage unit 2, the function amount calculation table 6, the function amount step number conversion table 9, the project information storage unit 8, and the like are provided in the storage device.
In the software estimating system, a function information input unit 1, a function information candidate display unit 3, a function information selection and decision unit 4, a function information selection and determination unit 4, which are respectively formed as program modules on application programs stored in a storage medium, Quantity calculation unit 5, project information input unit 7, function quantity step number conversion unit 10, work cost estimation calculation unit 11,
An estimated cost / planned cost comparison unit 12, a work man-hour estimation calculation unit 13, an estimated man-hour planned man-hour comparison unit 14, a warning message display unit 15, and the like are provided.

FIG. 2 is a diagram showing an example of function information used for calculating a function amount in the software estimation system according to the first embodiment of the present invention, which is stored in the function information storage unit 2. In FIG. 2, reference numeral 16 denotes function information for each field stored in the function information storage unit 2, and reference numeral 17 denotes function information as a function amount calculation target project. FIG.
FIG. 4 is a schematic diagram showing a function amount calculating process in the software estimation system according to the first embodiment of the present invention.
In FIG. 3, reference numerals 2 and 8 correspond to those in FIG.
7 are the same as those in FIG. 1
8 is a user, 19 is a terminal, 20 is a network to which the terminal 19 is connected, and 21 is a calculated total function amount.

FIG. 4 is a diagram showing a complexity conversion table in the IFPUG method in the software estimation system according to the first embodiment of the present invention. FIG. 5 is a flowchart showing an operation of a program for calculating a function amount in the software estimation system according to the first embodiment of the present invention. FIG. 6 is a view showing a part of information used for man-hour and cost estimation in the software estimating system according to the first embodiment of the present invention, wherein project information (plan) and completion information are stored in the project information storage unit 8. Project information (actual results) is stored. In FIG.
Are the same as those in FIG. 36 is project information (plan). 37 is the development language, 38 is the number of steps, 39 is the development period, 40 is the planned man-hours (overall), 41 is the planned man-hours (internal work), 42 is the planned man-hours (outside work), 43 is the planned work cost, 44 is a development field. 19, 37-44 are project information (plan) 36
Each information. 45 indicates completed project information (actual results)
It is. 46 is the amount of function, 47 is the development language, 48 is the number of steps, 49 is the development period, 50 is the number of man-hours (total), 51
Is the man-hour (in-house work), 52 is the work man-hour (outside work), 53 is the work cost, and 54 is the development field. 46 to 54 are information of completed project information (actual results) 45.

Next, the operation will be described. This software estimating system automatically calculates the function amount of the project for which the function amount is to be calculated by selecting or inputting function information necessary for calculating the function amount. Further, based on the calculated amount of functions, the number of steps is converted into the number of steps for each development language, and the cost of work and the number of man-hours are estimated. When the project plan value exceeds the estimated value of the work cost and work man-hour, a warning message is displayed to urge the review of the plan.
Existing function information 16 for each field is stored in the function information storage unit 2, as shown in FIG. FIG.
Shows an outline of a function amount calculation process in the software estimation system. The user 18 uses the system via a network. When calculating the function amount, first, the existing function information 16 is called. The user 18 selects the existing function information 16 in the same field as the function amount calculation target project, and selects the corresponding information (function type, function, data item, etc.) from the contents of the selected existing function information 16. ,
The newly created function information 17 of the function amount calculation target project is created. If there is no corresponding item, a new item is added and the newly created function information 17 is created. The function amount is automatically calculated based on the newly created function information 17 and the total function amount 2
Find 1 The total amount of functions is expressed by IFPUG (I
international Function Poi
Calculated from the number of files and the number of data items according to the complexity conversion table of the (nt Users Group) method. The information in the newly created function information 17 is stored in the function information storage unit 2 as information of the relevant field, and is used for the next measurement. Further, the obtained total function amount 21 is stored in the project information storage unit 8 and is used for estimating the number of work steps and work costs.

Next, the flow of calculating the total function amount will be described in more detail with reference to FIG. First, it is determined whether or not the field is an unregistered field. If the field is unregistered, a new registration is performed in step 22 and a field is input in step 23. Next, after inputting function information in step 24 and inputting data items in step 25, complexity conversion is performed in step 26, and points are totaled in step 27. If it is not unregistered in the first judgment as to whether or not the field is unregistered, in step 28, a development field is selected. Next, at step 29, the registered functions already registered are displayed.
Next, it is determined whether the function is an unregistered function. If the function is an unregistered function, the function is newly registered in step 30 and a data item is input in step 31 to execute steps 26 and 27. If the function is not an unregistered function, the function displayed in step 32 is selected. Next, at step 33, the registered data items are displayed. If the data item is an unregistered data item, if it is an unregistered data item, a new data item is registered in step 34,
If it is not an unregistered data item, select the displayed data item. After that, steps 26 and 27 are executed and the processing ends.

As shown in FIG. 6, the project information storage section 8 stores project information (plan) 36 of the development target project and completed project information (actual) 45 of the development completed project. In the software estimation system, the total function amount 21 is calculated using the function amount step number conversion table 9 based on the total function amount 21 stored in the project information storage unit 8 and the development language 37 of the project information (plan) 36. It is converted into the number of steps 38 and stored as project information 36. Further, the total function amount 21 and the number of steps 38 stored in the project information 36 are classified and managed based on information characterizing development such as a development field and a language, and the correlation between each total function amount 21 and the number of steps 38 is calculated. Based on this, the function amount step number conversion table 9 is corrected. The function quantity step number conversion table 9 manages conversion coefficients for each piece of information characterizing development.

In the software estimating system, the functions of the completed project information (actual results) 45 in the same development field are based on the total functional amount 21 and the development field 44 of the project information (plan) 36 stored in the project information storage unit 8. The work man-hour is estimated from the quantity 46 and the work man-hour (total) 50.
The estimated work man-hours are compared with the planned work man-hours (overall) 40 of the project information (plan) 36, and when the planned work man-hours (overall) 40 exceeds the estimated work man-hours, a warning message is issued according to the degree of excess. indicate.

In the software estimation system, the total function amount 21 and the development field 44 of the project information (plan) 36 stored in the project information storage unit 8, the planned man-hours (internal work) 41, and the planned man-hours (external work) Based on the outside work ratio of the planned work man-hours obtained from 42, the functional quantity 46 of the completed project information (actual) 45 of the same development field and the development field 54, the work man-hour (in-house work) 51, and the work man-hour (outside work) 52 The work cost is estimated from the outside work ratio of the planned work man-hour and the work cost 53 obtained from the above. The estimated work cost is compared with the planned work cost 43 of the project information (plan) 36, and if the planned work cost 43 exceeds the estimated work cost, a warning message is displayed according to the degree of the excess.

According to the first embodiment, by storing the function information used at the time of calculating the function amount, the user can simply select the stored function information at the time of calculating the function amount of the software, so that the user can select the function information. Can be measured, and it is not necessary to learn the measurement rules, and the difference between the measured values by the measurer is reduced. In addition, the conversion of the number of steps to the amount of functions can be performed not only by comparing the amount of functions and the number of steps from the actual information of the completed project, but also by confirming the validity of the amount of functions. It is also possible to correct the function quantity step number conversion table. In addition, by using the functional amount as a reference, it is possible to easily estimate the work man-hours and work costs from the actual information of completed projects, and a warning display when the planned value exceeds the estimated value enables the appropriate planning It is possible to stand.

[0027]

Since the present invention is configured as described above, it has the following effects. A function information storage unit in which function information of the software is stored, a function information selection unit for selecting function information of a software project to be developed from the function information stored in the function information storage unit, and a function information selection unit. Since the function amount calculation unit for calculating the function amount of the software project using the selected function information is provided, the function amount of the software project can be calculated by selecting the stored function information.

Further, a function information input unit for inputting function information of the software project is provided, and the function amount calculation unit calculates the function amount using the function information input by the function information input unit, and is stored in advance. New function information can be input. Further, the function information stored in the function information storage unit is managed for each development field, so that it is easy to select the function information of the software project.

Furthermore, since the work estimation unit for estimating the work based on the function amount calculated by the function amount calculation unit is provided, the work estimation can be performed based on the function amount. In addition, a comparison unit that compares the work estimate value estimated by the work estimate calculation unit with the planned value planned in advance, and a warning unit that generates a warning based on the comparison result of the comparison unit are provided. It can be performed.

Further, since the work estimation calculation section estimates the number of work steps of the software project, it is possible to estimate the number of work steps of the software project.
Further, since the work estimation calculation unit estimates the work cost of the software project, it can estimate the work cost of the software project. Further, the work estimation calculation unit estimates the outsourcing cost of the software project, so that the outsourcing cost of the software project can be estimated.

In addition, the function amount of the software project calculated by the function amount calculator and the work estimate value calculated by the work estimate calculator are stored.
The system includes a project information storage unit for storing, for each development field, a functional amount at the time of completion of a software project and an actual value corresponding to an estimated work value.
Since work estimates are made using the functional quantities and actual values when the software project in the same development field is completed,
Estimates can be made based on actual values.

Also, since a function amount step number conversion unit for converting the function amount into the number of steps of the development language using the function amount step number conversion table is provided, the function amount can be converted into the number of steps. Further, since the function amount step number conversion table is corrected using the function amount and the step number of the completed software project, the function amount is converted into the step number using the corrected function amount step number conversion table. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a software estimation system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of function information used for calculating a function amount in the software estimation system according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram showing a function amount calculating process in the software estimation system according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a complexity conversion table in the IFPUG method in the software estimation system according to the first embodiment of the present invention.

FIG. 5 is a flowchart showing an operation of a program for calculating a function amount in the software estimation system according to the first embodiment of the present invention.

FIG. 6 is a diagram showing a part of information used for man-hour and cost estimation in the software estimation system according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a function specification in a conventional project for which the number of work steps is estimated.

FIG. 8 is a diagram showing a conventional method of calculating the total amount of functions in a project for which work man-hours are to be estimated.

FIG. 9 is a schematic diagram showing a process method of a total function amount in a conventional project for which the number of work steps is estimated.

[Explanation of symbols]

1 function information input section, 2 function information storage section, 3 function information candidate display section, 4 function information selection determination section, 5 function amount calculation section, 6 function amount calculation table, 7 project information input section, 8 project information storage section, 9 Function quantity step number conversion table, 10 Function quantity step number conversion section,
11 Work cost estimate calculation section, 12 Estimated cost plan cost comparison section, 13 Work man-hour estimate calculation section, 14 Estimated man-hour planned man-hour comparison section, 15 Warning message display section, 1
6 function information, 17 function information of function calculation target project, 18 users, 19 terminals, 20 networks, 21 total functions, 36 project information (plan), 37, 47 development language, 38, 48 steps, 39, 49 Development period, 40 Planned man-hours (overall), 41 Planned man-hours (internal work), 42 Planned man-hours (outside work), 43 Planned work costs, 44, 54 Development field, 45 Completed project information (actual), 50 works Man-hours (overall), 51 work man-hours (in-house work), 52 work man-hours (outside work), 53 work costs.

Claims (11)

[Claims] A function information storage unit storing function information of software; a function information selection unit for selecting function information of a software project to be developed from the function information stored in the function information storage unit; A software estimating system comprising: a function amount calculating unit that calculates a function amount of the software project using the function information selected by the selecting unit. 2. A function information input unit for inputting function information of a software project, wherein a function amount calculation unit calculates a function amount using the function information input by the function information input unit. The software estimation system according to claim 1. 3. The function information stored in the function information storage unit is managed for each development field.
Alternatively, the software estimation system according to claim 2. 4. A software estimator according to claim 1, further comprising a work estimating unit for estimating a work based on the function amount calculated by the function amount calculating unit. system. 5. A comparing unit for comparing the work estimate value estimated by the work estimate calculation unit with a planned value planned in advance,
5. The software estimation system according to claim 4, further comprising a warning unit that generates a warning based on a comparison result of the comparison unit. 6. The work estimation calculation unit estimates work man-hours of a software project.
Or the software estimation system according to claim 5. 7. The work estimation calculation unit estimates a work cost of a software project.
The software estimation system according to any one of claims 1 to 6. 8. The software estimating system according to claim 4, wherein the work estimating calculation unit estimates the outsourcing cost of the software project. 9. The function quantity of the software project calculated by the function quantity calculation section and the work estimate value calculated by the work estimation calculation section are stored, and the function quantity and the work estimate when the software project is completed. A project information storage unit that stores the actual value corresponding to the value for each development field is provided, and the work estimation calculation unit calculates the work estimate using the functional amount and the actual value when the above software project of the same development field is completed. 9. The software estimation system according to claim 4, wherein the software estimation is performed. 10. A function quantity step number conversion unit for converting a function quantity into a step number of a development language using a function quantity step number conversion table. Software estimation system described in section. 11. The software estimating system according to claim 10, wherein the function amount step number conversion table is modified using the function amount and the step number of the completed software project.