現行國內外工程取得競爭激烈得標不易，為保有競爭優勢，建造工程管理實為重要，以有效掌控「時程、成本與性能」亦為「如時、如質、如預算」。目前國內工程管理仍停滯於計畫及一般進度報表產生，其主要目標與成本控制並無相互連結，致進度及成本難以相互掌控。以實獲值管理，可以達到預警效果，並據此幫助管理者達管控目的；此實獲值管理在專案管理的專業領域裡，亦為國際間所公認最具效果的方法之一，它源自於30多年前美國執行的大型國防專案，歷經數百件專案執行與驗證，並廣泛的為其它國家與企業使用，如今全世界越來越多的國家及組織，採用這種方法作為專案執行的控管。 美國更於1998年6月正式發佈32項實獲值管理準則為美國國家標準：ANSI/EIA 748，並定義實獲值管理系統的相關作業指引。另實獲值管理系統又被引述可以有效的提供專案時程與成本績效的監控資訊，協助專案在主要專案執行項目中，依其執行項目的量化資料與分析結果，正確快速地做出執行決策，以確保工作執行順利，並對工作執行中所產生之問題避免或降低對專案目標所造成的損害與衝擊。 本研究以實例之導入說明實獲值管理之過程及討論其優點，由實獲值時程/成本之可靠的統計圖獲得時程及成本狀態及量化差異數所顯示的專案績效指標，以達到專案執行早期預警與預測的效能，以作為業界之參考。 Nowadays it is not easy to get a bid award locally; in order to keep competition advantage, construction management is very important in order to efficiently control “schedule, cost and quality” to reach “on time, within cost and good quality”. Currently local construction management still stagnates in planning and monitoring progress effectively; that the main target is not connected with cost control causes mutual control difficulty between progress and cost. Using Earned Value Management (EVM) can obtain the warning effect to help management reaching the purpose of management control; EVM is within professional field of project management and is one of the most effective methods known to public internationally; EVM started more than 30 years ago and was executed in large projects by National Defense of USA. After the execution and verification in hundreds of projects and being broadly used by other countries and enterprises, more and more countries and organizations select EMV as their project control method. Furthermore, USA officially announced thirty-two criteria of EVM – ANSI/EIA 748 as the national standard in June 1998 and defined the related procedure guide. In addition, the EVM System can provide supervising data of project schedule and cost performance in order to assist project management in executing major items and, based on quantitative data and analytic results, to make decisions speedily. This study will confirm merits of EVM in real life case and demonstrate the approach to launch EMV in large-scale projects. Tough the reliable statistics graph of EV schedule/ cost. We can get the project performance index showing from the status of schedule and cost and quantified difference in order to achieve early warning and predictive effect in project implementation on which can be the reference in the construction industry.
