Function Point Measurement for Object-Oriented Requirements Specification

Function point analysis( FPA) was proposed to help measure the size of software system and has been widely used in the actual software developnient. However, it has been reported t,hat since function point counting involves judgment on the part of the counter, some difference for the same product would be caused even in the same organization. This paper describes an actual experience of applying FPA to requirements specification at Hitachi Ltd. Here, we propose detailed FPA measurement method for the requirements specification analyzed using the requirenients analysis system REQUARIO developed in Hitachi Ltd., and develop a nieasurenient tool based on the method. We have also applied the tool to the actual requirements specification and shown the applicability of t.he tool.