Function Point Reverse Engineering Dialog Box

The Function Point Reverse Engineering Dialog Boxis displayed when you select the Reverse Engineering option from theFunction Point Menu.

This dialog box allows you to perform "what-if" analysis on your Function Point Model. When the dialog box is first displayed, all three columns are populated with the calculation totals from your Function Point Model. Select the radio button beside the model input you wish to change. Enter the new value and select Calculateto see how the model is adjusted based on this value as its starting point. The results of the calculation are displayed in theOutputcolumn. TheOriginalcolumn displays the actual values contained in your Model. All Source Lines of Code calculations are based on the language selected for the model inFunction Point Count Dialog Box.

Selecting Resetwill return theInputvalues to the Original values from your Model.

Select Close to exit the dialog box and return to theSummary Information Window. Reverse Engineering adjustments are not applied to your model.

For more information on using Reverse Engineering for your model, see Reverse Engineering in Chapter 6, Using Advanced COSMOS Features.

Cocomo Menu

The COCOMO Menuis displayed when you select theCOCOMO option from theMenu Bar. Items on this menu allow you to alter COCOMO input data and to view the results.

The selections available on this menu are:

Menu Selection	Shortcut Keys	Description
Attributes	A	Displays the Attributes Dialog Box to allow you to enter or modify the development model, the development mode, and the source lines of code
Cost Drivers	C	Displays the Cost Drivers Dialog Box to allow you to specify the effect of product, hardware, personnel, and project factors on project effort and schedule
Description	D	Displays the Description Dialog Box to allow you to enter or modify the Model Description information
Sensitivity Analysis	S	Displays the COCOMO Sensitivity Adjustment Dialog Box to allow you to enter the parameters for sensitivity calculations
Reverse Engineering	R	Displays the COCOMO Reverse Engineering Dialog Box to allow you to perform "what if" analysis on your Model.
Initialize	I	Resets the description, the development mode and model, the source lines of code, and the cost drivers to default values after requesting a confirmation

Cocomo Summary Information Window

The COCOMO Summary Information Windowis displayed after opening a new or existing COCOMO Model. For new Models, this window is displayed after you exit theDescription Dialog Box. For existing Models, this window contains any description information you have previously entered and is displayed when you open the Model.

Note: You cannot modify data directly in this window. Use the selections available on COCOMO Menu to make adjustment to your model

The first three fields of this window contain COCOMO Model description information which has been previously entered by the user. For new Models these fields are blank. The rest of the fields contain the most recent COCOMO results, computed from data entered by the user or from default values if data has not been entered. The information in this window includes:

Name	The name of the project being modeled
Prepared By	Your name
Description	A description of your project (this field scrolls to permit display of long descriptions)
Source Lines of Code	The estimated lines of code (excluding comment lines) contained in the delivered software product
Nominal Person Months	The number of person-months it will take to complete this project, computed from the source lines of code, and project mode (organic, semi-detached, or embedded)
Adjusted Person Months	The number of person-months it will take to complete this project, adjusted by the project cost driver ratings
Time To Develop	The calendar time it will take to develop this project (in months)
Phase Distribution	Provides information for the three phases: Product Design, Programming, Integration, and Test. The Phase Distribution option is defaulted to OFF in the Display Options Dialog Box.