Backfired Function Points – CAST

Definition

Back-Fired Function Points (BFP) estimate the number of function points of an application. This code-derived metric is based on the lines of code, weighted by a gearing factor for a given technology. The gearing factors are taken from QSM (Quantitative Software Management).

Example

An application is composed of 3 different technologies:

Java (100K lines of code)
PL/SQL (20K lines of code)
Javascript (10K lines of code)

The abacus table indicates how many source lines of code is observed in average to constitute one function points, for each technology:

Java: 53 lines of code for 1 BFP
PL/SQL: 37 lines of code for 1 BFP
Javascript: 47 lines of code for 1 BFP

Back to our application example:

Java represents ~1,886 BFPs
PL/SQL represents ~540 BFPs
Javascript represents ~212 BFPs
Total application represents ~2,638 BFPs

This metric is captured each time an application is scanned with CAST Highlight and is presented over time in the TRENDS dashboard as shown below.

For reference only. For the complete details please refer the original article
https://doc.casthighlight.com/backfired-function-points/

Definition

Example

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