Backfired Function Points
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 an abacus for a given technology. The abacus is taken from QSM (Quantitative Software Management).
An application is composed of 3 different technologies:
- Java (100K lines of code)
- PL/SQL (20K 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
Back to our application example:
- Java represents ~1,886 BFPs
- PL/SQL represents ~540 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.