-fa option replaces the -f option from version 6.20 forward. This
option creates a functional analysis report that displays each function
name and the LOC metrics. Function metrics are reported
for each file and project. This option is usually used with -c
-o object classes and -n quality analysis. The user may
options to form various types of reports.
6.20 of RSM introduces the -fp option that derives equivalent function
points (FP) from the actual measured source code. Actual Function points
are determined from the software requirements through an elaborate
analysis and calculation. This calculation has many "factors" for
subjective traits of the development program. Function point information
can be acquired at www.ifpug.org. The
major draw back to FP analysis is that it is very labor intensive to
derive FP from requirements and FP can not be measured from the source
code or the actual product produced.
provides the capability to derive FP from the measured metric of LOC.
Software Engineering experts have come up with factors that convert
Lines of Code to Function Points. In this manner actual measurable
metrics can be used to derive function points. These metrics can then be
used to cross check you original FP analysis and hopefully allow you to
refine the factors used in Function Point Analysis.
The following are links to several LOC to FP Conversion factors. The RSM configuration
file sets LOC, eLOC and lLOC conversion factors by language. RSM uses
by default to the Caper Jones values. You may choose to modify these
parameters to meet your specific requirements.
following lines are extracted from the RSM configuration file. The
default LOC/FP factors for the header files have been set to 0 to
account for these file types as pure specifications. The user may choose
to make these factors equivalent to the appropriate language factors.
Header File Function Points per LOC : 0
Header File Function Points per eLOC: 0
Header File Function Points per lLOC: 0
C File Function Points per LOC : 128
C File Function Points per eLOC : 128
C File Function Points per lLOC : 128
C++ File Function Points per LOC : 53
C++ File Function Points per eLOC : 53
C++ File Function Points per lLOC : 53
Java File Function Points per LOC : 53
Java File Function Points per eLOC : 53
Java File Function Points per lLOC : 53
Other File Function Points per LOC : 0
Other File Function Points per eLOC : 0
Other File Function Points per lLOC : 0