Guia do wbs
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Program/Project Management SeriesWork Breakdown Structure Reference Guide
National Aeronautics and
Space Administration
May 1994
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Work Breakdown Structure Reference Guide
May 1994
Table of Contents iii Chapter 1: WBS Basic Information Definition WBS Types Program/Project WBS Contract WBS Guidelines Summary Chapter 2: WBS Development and Maintenance WBS and the Project Life Cycle WBS Activities Development Considerations Compatibility of PWBS and CWBS Compatibility with Internal Organization Structure and Management Systems Correlation with Other Requirements Number of Levels PWBS Levels CWBS Levels Cost Accounts All Inclusiveness PWBS CWBS Change Control PWBS Development Contractor-Proposed PWBS Changes CWBS Development Techniques Coding of Elements Preparing Diagrams Preparing WBS Dictionary Using Checklists PWBS Checklist Contractor-Proposed PWBS Changes Checklist CWBS Checklist Common Development Errors Unsuitable Old WBS Error Non-Product Elements Error Functional Elements Error
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May 1994
Work Breakdown Structure Reference Guide
Chapter 3: WBS Use Introduction Technical Management Specification Tree Configuration Management Integrated Logistic Support Test and Evaluation Work Identification and Assignment Schedule Management Plans Revisions Status Cost Management Cost Estimating Budgeting Accounting Analysis and Control Historical Database Development Performance Measurement Summary Appendix A: Glossary Appendix B: Acronym Listing Appendix C: PWBS Examples Appendix D: CWBS Examples Appendix E: WBS Section of NHB 7120.5
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Work Breakdown Structure Reference Guide
May 1994
About This Reference Guide
The work breakdown structure (WBS) is an effective tool in managing NASA programs and projects. It assists both NASA and contractors in