EVMS Performance Management Planned Value of Work Accomplished

EVMS 발전배경 • 유사개념: Performance Management, Planned Value of Work Accomplished, Budget Value of Work Performed, C/SCSC, PERT/Cost • Cost/Schedule Control System Criteria – C/SCSC : 미 공군 개발, 국방성에 의해 1967 년부터 주요 사업에 적용 (1 million & 12 개월 이상) – 1980년부터 미 에너지부와 교통부 사업에 적용 현재 캐나다와 호주에서도 활용됨 건설관리학과 공정계획 및 관리

Earned Value 란? – Earned value is something that is gained through some effort. 건설사업관리(project management)에서는 완성된 activities를 통해서 가치(value)가 달성(earned)됨 – Earned value is a measure of progress Earned Value = (budget for that account) (% complete) – Earned Value provides the basis for performance analysis √ Need to know what the planned cost at any time was and also what the cost of the completed work is. 건설관리학과 공정계획 및 관리

EVMS 용어 • BCWS: Budgeted Cost of Work Scheduled (실행예산, 계획진도) - BCWS = Sum (Units of Work Planned * Est. Unit Price) • BCWP: Budget Cost of Work Performed, “Earned Value” (실행기성, 실적진도) - BCWP = Sum (Units of Work Completed * Est. Unit Price) • ACWP: Actual Cost of Work Performed (실투입비) - ACWP = Sum (Units of Work Completed * Actual Unit Price) • BAC: Budgeted Cost at Completion (총실행예산) • EAC: Estimated Cost at Completion (변경실행예산) - EAC = ACWP + Estimated Cost to Complete 건설관리학과 공정계획 및 관리

EVMS 용어 • CV = Cost Variance (비용차이) - CV = BCWP – ACWP + : Under Cost - : Over Cost • SV = Schedule Variance (일정차이) - SV = BCWP – BCWS + : Ahead of Schedule - : Behind Schedule • ACV = At Completion Variance (최종 예산 차이) - ACV = BAC – EAC + : Under Budget - : Over Budget 건설관리학과 공정계획 및 관리

EVMS 용어 • CPI = Cost Performance Index (비용지수) - CPI = BCWP / ACWP CPI > 1 : Favorable Outcome CPI < 1 : Unfavorable Outcome • SPI = Schedule Performance Index (일정지수) - SPI = BCWP / BCWS SPI > 1 : Favorable Performance SPI < 1 : Delay or Behind Schedule 건설관리학과 공정계획 및 관리

EVMS 성과분석 • CV SV Project Status --------------------Over Cost, Behind Schedule + Over Cost, Ahead of Schedule + Under Cost, Behind Schedule + + Under Cost, Ahead of Schedule 건설관리학과 공정계획 및 관리

EVMS 예제 - • • • 예산 단가: 전체물량: 실제 단가: 현재 계획물량: 현재 기성물량 : BCWS = BCWP = ACWP = CV = CPI = SV = SPI = BAC = EAC = 건설관리학과 콘크리트 타설양생 m 3 60, 000 150 65, 000 75 60 토공 (굴착성토) m 3 1500 600 1400 350 75*60, 000 + 300*1, 500 = 4, 950, 000 60*60, 000 + 350*1, 500 = 4, 125, 000 60*65, 000 + 350*1, 400 = 4, 390, 000 4, 125, 000 – 4, 390, 000 = -265, 000 4, 125, 000 / 4, 390, 000 = 0. 940 <1 ∴ Unfavorable 4, 125, 000 – 4, 950, 000 = -825, 000 4, 125, 000 / 4, 950, 000 = 0. 833 <1 ∴ Delay or Behind Schedule 150*60, 000 + 600*1, 500 = 9, 900, 000 4, 390, 000 + (9, 900, 000 -4, 125, 000)/0. 940 = 10, 536, 000 공정계획 및 관리