A case study in COSMIC functional size measurement: Angry Bird Mobile Application

UML-based measurement is of great interest for industry because of its popularity in logical designs. UML models have been successfully used to support COSMIC-based functional size measurement (COSMIC FSM). In this paper, UML-based functional measurement through COSMIC function point is proposed to be used to estimate the mobile game application. The key idea is to use UML representations for capturing the information needed for the measurement and estimation. A case study, Angry Birds mobile game application is used to demonstrate how UMLs can actually improve the practice of COSMIC measurement by mapping the UML context with COSMIC FSM rules and measurement. The UML representations involve use case diagram, behavioral model elements, component diagram, object diagram and sequence diagrams to represent the basic functional requirements and workflow requirements. This paper shows the usage of UML representations with COSMIC function point is applicable to the case study in mobile game. It provides an option to the software developers to estimate the mobile game application size by using UML-based COSMIC FSM method. This paper contributes on building UML models according to the COSMIC measurement rules, which ease the measurement procedures.