A Pattern Language for Class Responsibility Assignment for Business Applications

Assigning class responsibility is a design decision to be made early in the phase software development, which bridges requirements and an analysis model. In general, assigning relies heavily on expertise experience of developer, it often ad-hoc. Class assignment rules are hard uniformly defined across various domains systems. Thus, existing work describes general stepwise guidelines without concrete methods, imposes limit deriving model from specification any loss information providing sufficient quality This study tried grasp commonality variations analyzing business application domain. By narrowing subject solution, presented patterns can help identify assign responsibilities for system belonging The pattern language consists six segmented patterns, including 19 relationship type among conceptual classes. Each sequence use case could analyzed as result weaving set patterns. A with payroll prove patterns' feasibility, explaining how proposed develop coverage proposing CRA enhancement implementation code discussed benefit.