Nasa - wbs reference guide
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Program/Project Management SeriesWork Breakdown Structure
Reference Guide
National Aeronautics and
May 1994
Space Administration
2
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
May 1994
Work Breakdown Structure Reference Guide
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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
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Appendix A: Glossary
A-1
Appendix B: Acronym Listing
B-1
Appendix C: PWBS Examples
C-1
Appendix D: CWBS Examples
D-1
Appendix E: WBS Section of NHB 7120.5
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Work Breakdown Structure Reference Guide
May 1994
About This Reference Guide