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Earned Value Management for Software Project Tracking

Earned Value Management for Software Project Tracking. By: Nick Klauer. Overview . Discuss What EVM is Explain why you would Use EVM Identify who uses EVM How to implement EVM into your project Criticisms of EVM. What is EVM?.

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Earned Value Management for Software Project Tracking

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  1. Earned Value Management for Software Project Tracking By: Nick Klauer

  2. Overview • Discuss What EVM is • Explain why you would Use EVM • Identify who uses EVM • How to implement EVM into your project • Criticisms of EVM

  3. What is EVM? • A metric to compare cost of production vs. value of product over time • Used during a project’s lifespan • Enables a project manager a way to gauge if a project is ahead of schedule, falling behind, under- or over- budget

  4. What is EVM? Common problems in large software projects: • Integration • Scheduling Problems • Budgeting

  5. Why use EVM? • Provides a way to gauge ongoing progress of a project • Better analysis of costs to produce a system • Schedule Analysis

  6. Why use EVM? Then (1994) Now (2004) Type 1: Success (on time, under budget) Type 2: Challenged (over budget, over schedule, but complete) Type 3: Failure (Scrapped)

  7. Who Uses EVM? • Many Governmental Organizations: • DoD • NASA • DoE • ANSI/EIA Standard 748-A • OMB Circular A-11 Part 7 • Project Management Institute(PMI) Standards • CMMI – Level 5 Integration • Sarbanes-Oxley Act of 2002 Compliance

  8. No measure for how much work has been done Can’t identify value of project, just it’s ongoing cost Can be misleading (this is not under-budget) EVM Comparison – No EVM metric applied Courtesy: Wikimedia Foundation, Inc. and Garry L. Booker

  9. Can identify schedule variances It can be inferred from week 6 and later that we’re behind schedule It is shown that we are ahead of schedule early in project. EVM Comparison – Basic EVM against PV Courtesy: Wikimedia Foundation, Inc. and Garry L. Booker

  10. Measuring EV against cost Can be seen we are under budget We are creating more value than we are expending EVM Comparison – EVM against Cost Courtesy: Wikimedia Foundation, Inc. and Garry L. Booker

  11. All three metrics included Can be compared overall value against time Can compare against cost as well Much more can be understood on a project’s progress EVM Comparison – EVM against Both AC and PV Courtesy: Wikimedia Foundation, Inc. and Garry L. Booker

  12. How to implement EVM • Many various implementations • Standards define different methods • Three general implementations: • Simple • Intermediate • Advanced

  13. Implementing EVM - Simple • One emphasis: Technical Performance • Weighted values for each components • Value can be arbitrary numbers, or dollar amounts ($$$) • Earning Rules: • 0/100 – All or Nothing. • 50/50 – Half value at start, half when completed • 25/75 – Creates an emphasis for completing a piece over just starting it

  14. Implementing EVM - Intermediate • Adds on to Simple • Schedule Performance • Values weighted in relation to schedule • Gives more credit to being on schedule over being late • Earning Rules: • Adds milestones and weighting of schedules • Additional models on Effort Analysis and Level of Effort(LOE) • Slow weeks have less of an impact • Splitting time between components

  15. Implementing EVM - Advanced • Takes intermediate, adds Cost Performance • Requires metrics to be measured in actual dollar amounts rather than point systems • ANSI/EIA 748-A Standard requires Advanced EVM to be implemented

  16. Criticisms of EVM • Can be too lightweight, offering little data • Costly in small projects • Doesn’t measure quality of product • Agile Development not considered a good candidate • Cost Estimation is difficult, no matter what metric to measure against • Estimation falls on Project Manager, Architects

  17. Sources • Delivering Earned Value Management for Government Agencies Using the Microsoft Office System - http://www.microsoft.com/office/showcase/earnedvalue/demo.mspx • Wikipedia: Earned Value Management - http://en.wikipedia.org/wiki/Earned_value_management • Software Engineering Institute: Using Capability Maturity Model Integration (CMMI) to Improve Earned Value Management - http://www.sei.cmu.edu/publications/documents/02.reports/02tn016.html • Standish CHAOS Report, 1994 and 2004 - http://www.standishgroup.com/sample_research/chaos_1994_1.php • Statistics over IT Failure Rate - http://www.it-cortex.com/Stat_Failure_Rate.htm#The%20Robbins-Gioia%20Survey%20(2001) • Earned Value Management Tutorial – NASA - http://evm.nasa.gov/definition1a.html • Project Management Institute – http://www.pmi.org/

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