Two business cases were checked out：
● Hull CS approval data (218 based)
● Ship Hull form data (216 based)
Tools used are：
● Ege V4.0 (GIDA)
● Psstep_Caselib V4 (ProSTEP)
Data imported from NAPA
Results：
● OpenGL based Viewer for AP216
● VRML-Visualisation of AP216 Geometry
● Import of STEP files for further processing
Problems：
● documentation of model changes
● implementation of model subsets
● Part 21 Technical Corrigendum
● Reserved words in C++ code generation (code, events, ..)
● Incomplete and inconsistent STEP files (detected by SDAI checker)
Application 1 (based on AP216)：
Import of ship hull geometry using AP216
● Geometry:
● Hullform
● Appendages
● Compartment boundaries
● Major structural elements
● Main dimensions
● Product structure
● Functional descriptions： deck, outer hull
Application 2 (based on AP218)：
● Geometry of plates and profiles
● main dimensions
● product structure： compartments, systems
● class approval data
● functional descriptions： deck, outer hull
Application 3： AP216 for CFD - 3D body
Conclusions：
● Implementation of subsets should be based on full schemas
● careful documentation of schema modification
