Spacecraft development

The specification treePArequirementsManagementrequirementsSGICDvol 1AIVrequirementsMRDOIRDSGICDvol 2Doors linksDoors linksSRSGDIRDoors linksROOTSW URDSYSTEMSW URDMMUSW URDDMS SWURDOperabilitySW URDGenericTMTC ICDDoors linksDoors linksPLM spec E-SVM spec MSVM specFPAspecPLM SWURDPL TCSSW URDAOCSSW URDCDMS, Power,TTC SW URDMPS SWURDTCS SWURDMPSspecCPSspecDSAspecLevel 1 (ESA documents)PLMeqptspecFPAeqptspecESVMeqptspecMSVMeqpt specLevel 2 (Spacecraft and SW URDs approvLevel 2 (Modules - same level as S/C butLevel 3 (Subsystems)Level 4 (Equipments)Assembly, Integration and Verification The overall development covers– Design/ Development/ Manufacturing/ Assembly/ Integration/ Validation– At unit, subsystem, module and spacecraft level Almost all project people contribute to verification, to demonstrate that thespacecraft will fulfil its mission and meet the associated performancespecifications– System and subsystem engineering teams– Equipment unit procurement teams– Product assurance teams– Assembly, integration and test teams– Instrument teams, for instrument, spacecraft, and system performance level Verification can be performed by– Design Review– Analyses– Simulations or tests (or any combination of the above)• involving software models or physical development models