Function points in software engineering

There are 3 types of function point FP count. Scope and Boundary of the Count: In the second step, the scope and boundary of the functions are identified.

Boundary indicates the border between the application being measured and the external applications. Scope can be decided with the help of data screens, reports, and files. Unadjusted Function Point Count: This is the main step of this process where all the function points produced from the above FPA components External Inputs, External Output, Internal Logic files, External Logic files, Inquiries are added together and labeled as unadjusted function point count.

Value Adjustment Factor: In this step the value adjustment factor is determined. VAF contains 14 General system characteristics GSC of the system or application that defines the types of application characteristics and is rated on a scale of 0 to 5. Once the unadjusted function point and value adjustment factor is calculated, the Adjusted Functional point count is found out using the two values. This is done with the help of the following formula. The Adjusted FPC is then multiplied with a numeric value, which is the effort based on the technology.

Some of the examples are below. If the technology selected for a particular requirement is Java, then the formula to calculate the final hours are as follows:.

This will give the total hours of effort required to achieve the requirement under analysis. She is working as a Project Coordinator and business analyst in Fingent and majorly deals with processing requirements to create conceptual prototypes and mock-ups. Cloud Computing. Data Science. Angular 7. Machine Learning. Data Structures. Operating System. Computer Network. Compiler Design. Computer Organization. Discrete Mathematics. Ethical Hacking. Computer Graphics. Web Technology.

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Start Your Coding Journey Now! The primary intent of an ILF is to hold data maintained through one or more elementary processes of the application being counted. An ILF has the inherent meaning that it is internally maintained, it has some logical structure and it is stored in a file. Refer Figure 1. External Interface File EIF is a user identifiable group of logically related data or control information that is used by the application for reference purposes only.

The data resides entirely outside the application boundary and is maintained in an ILF by another application.

An EIF has the inherent meaning that it is externally maintained, an interface has to be developed to get the data from the file. Transaction functions are made up of the processes that are exchanged between the user, the external applications and the application being measured.

This data is coming external to the application.