System Hierarchy - Systems Modeling Simulation Lab. KAIST

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Relationship Between PBS and WBS System Subsystem A Subsystem B Subsystem C Management Systems Engineering Integration, Test & Verification Logistics Support PBS The Product Breakdown Structure shows the components from which the system was formed. The PBS reflects the work to produce the individual system components. The Work Breakdown Structure shows all work components necessary to produce a complete system. The WBS reflects the work to integrate the components into a system. WBS Space Systems Engineering: System Hierarchy Module 12
Work Breakdown Structure (WBS) A Work Breakdown System (WBS) is used for: • Task or work package planning and scheduling • Cost estimating or budget formulation • Product development documentation, e.g., documentation tree, systems engineering management plan (SEMP), drawings • Project status reporting and assessment The WBS should include: • All the work in the project life cycle, in-house and/or contracted • Hierarchical relationships of all work products • A companion dictionary to describe the content When should you have a WBS • Pre-phase A; conceptual design phase; early mission/project formulation Space Systems Engineering: System Hierarchy Module 13
Page 1 and 2: CC532 Collaborate System Design Fun
Page 3 and 4: One View of the Architecture - The
Page 5 and 6: More Value to Creating A System Hie
Page 7 and 8: System Hierarchy (1/2) Hierarchy/H
Page 9 and 10: System Hierarchy Example - Space Sh
Page 11: Definition Work Breakdown Structure
Page 15 and 16: Example: NASA’s SOFIA Project PBS
Page 17 and 18: Techniques for Developing a WBS
Page 19 and 20: Backup Slides for System Hierarchy
Page 21 and 22: NASA Space Flight Project Standard
Page 23 and 24: NASA Space Flight Project Standard
Page 25 and 26: Rules for the NASA Standard WBS 1.
Page 27 and 28: Common WBS Errors (2/3) Error 2: In
Page 29 and 30: Space Systems Engineering: System H
Page 31 and 32: Organizational Structure for Explor
Page 33: Constellation Program Systems Engin

System Hierarchy - Systems Modeling Simulation Lab. KAIST

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