"Object model level 1"; advancing of the UML model to meet a certain feature level (not complete; minimal but well defined; you can build a basic application from it) not necessarily complete; language-specific Review has been ongoing since Architecture group onset Starting point: 1. library of tests 2. complete level 1 UML 3. coding standard Deliverables: 1. source code 2. unit test reports 3. binaries 4. implementation details not covered by UML or generated documentation