美国麻省理工大学：《航天系统工程》（英文版）Earned Value Project Management

Earned Value Project Management Colonel john Keesee

1 Earned Value Project Management Colonel John Keesee Colonel John Keesee

Objective To introduce and discuss the fundamentals of earned value project management e Work Breakdown structures o Program plans and schedules o Earned value management systems Cost and schedule variances o Estimates at completion

2 Objective „ To introduce and discuss the fundamentals To introduce and discuss the fundamentals of earned value project management of earned value project management ‹Work Breakdown Structures Work Breakdown Structures ‹Program plans and schedules Program plans and schedules ‹Earned value management systems Earned value management systems ‹Cost and schedule variances Cost and schedule variances ‹Estimates at completion Estimates at completion

Scenario You have been tasked to be the project manager for an important project You have been directed to use an earned value management system Time to market is critical for this development

3 Scenario „ You have been tasked to be the project You have been tasked to be the project manager for an important project manager for an important project ‹You have been directed to use an earned You have been directed to use an earned value management system value management system ‹Time to market is critical for this Time to market is critical for this development development

Work breakdown Structure Identifies 100 %o of the work to be accomplished WBS dictionary breaks the scope into measurable tasks Each with an estimated value Responsibility for each task assigned to individuals or work teams

4 Work Breakdown Structure „ Identifies 100 % of the work to be Identifies 100 % of the work to be accomplished accomplished „ WBS dictionary breaks the scope into WBS dictionary breaks the scope into measurable tasks measurable tasks ‹Each with an estimated value Each with an estimated value ‹Responsibility for each task assigned to Responsibility for each task assigned to individuals or work teams individuals or work teams

Work breakdown Structure Space System Launch Vehicle Space Vehicle Ground Command Control Communications and Mission Equipment Payload Spacecraft Reentry vehicle Integration, Assembly Test and Checkout

5 Work Breakdown Structure Launch Vehi cle P a yload Spa c e craft Re e ntry v e hicl e Inte gration, A s s e m bly, T est a n d Ch ecko ut Spa c e Vehi cle Gr o und C o m m and, Co ntrol, Co m m u nicati o n s an d Mis sion E q uip ment S pace S y stem

Project Master Schedule a Detailed plan and schedule a Identified dependencies between tasks ◆18 months Estimated resources for each task ◆10 units at$l50 Keach

6 Project Master Schedule „ Detailed plan and schedule Detailed plan and schedule „ Identified dependencies between tasks Identified dependencies between tasks ‹18 months 18 months „ Estimated resources for each task Estimated resources for each task ‹10 units at $150K each 10 units at $150K each

Project Master Schedule Task/Event Jan -J u-Dec Jan-Jun Award Design Buy specifications Vendor quotes Purchase orders Receive materials Factory plans Tool design Tool fabrication Parts fabrication Assembly: sub and final Test checkout

7 Project Master Schedule T ask/ E ve n t Jan - Ju n J ul - D e c Jan - Ju n Aw a r d ^ De sig n ^ B u y s p e cific a tio n s ^ V e ndor quotes ^ P u r c h a s e o r d e rs ^ R e c eive m ate rials ^ F a c tory plan s ^ T o ol d e sig n ^ T o ol fa b ric a tio n ^ P a rt s fa b ric a tio n ^ A s s e m bly: sub and fin al ^ T e s t & c h e c k o u t ^

Project Performance Display 1600000 1400000 1200000 1000000 BCWS 800000 一BCWP 600000 ACWP 400000 200000 0

8 Project Performance Display 0 200000 400000 600000 800000 1000000 1200000 1400000 1600000 Jan April July October January April July BCW S BCW P ACW P

Plan review before go-Ahead ■CEO Time to market is critical. you have 12 months This looks gold-plated at 1. 5M. You have 1. OM Go ahead but come back to me with your progress in three months

9 Plan Review Before Go-Ahead „ CEO: ‹“Time to market is critical. You have 12 “Time to market is critical. You have 12 months.” months.” ‹“This looks gold “This looks gold-plated at $1.5M. You plated at $1.5M. You have $1.0M.” have $1.0M.” ‹“Go ahead, but come back to me with “Go ahead, but come back to me with your progress in three months.” your progress in three months

The Three month review a Three units scheduled for completion Two units actually completed $300,000 budgeted at this point $300,000 actually spent Optimist pm: A little behind schedule but right on the cost plan

10 The Three Month Review „ Three units scheduled for completion Three units scheduled for completion „ Two units actually completed Two units actually completed „ $300,000 budgeted at this point $300,000 budgeted at this point „ $300,000 actually spent $300,000 actually spent „ Optimist PM: “A little behind schedule but Optimist PM: “A little behind schedule but right on the cost plan.” right on the cost plan