Discipline Artifact Incep. Elab. Const.I Trans Iteration-** ll ELEn CL Cn T1T2 Business Modeling Domain Model Requirements Use-Case Model Vision Supplementary pecification ssss Glossary Desig Design model SW Architecture Document Data model Implementation Implementation model Project Management Sw Development Plan srrrrssssrsr rrrr r r Testing Test model Environment Development Case Table 2. 1 Sample Development Case of UP artifacts, s-start; r-refine