ソフトウェア開発プロジェクトの成否はプロジェクト管理者の管理能力によるところが大きい.このため,earned value(EV)と呼ばれる統一的な尺度を導入することで,プロジェクトのコストやスケジュールを定量的に測定・分析し,それらを一元的に管理する方法EVA(Earned Value Analysis)が注目されている.このEVAを用いれば工事完了日や工事完了時コストを予測することができる.しかし,EVAは要員を割り当てる上での制約(例えば,要員の割当可能期間に関する制約)を考慮に入れていないので,工事完了日の予測が不正確になることがある.そこで,制約を考慮に入れたプロジェクトの工事完了日を予測する方法と,EVAにより工事完了時コストを予測する方法を併用した,プロジェクトの遂行状況を評価するためのメトリクスについて考察している.

A lot of whether or not a software project is successful depends on management ability of a software project manager and his/her management office. Therefore, EVA (Earned Value Analysis) has received a lot of attention recently, as a project manager can quantitatively measure/analyze the cost and schedule of a software project by using EVA, and manage them in an integrated fashion. Project manages can estimate SEAC (Schedule Estimate At Completion) and EAC (Estimate At Completion) by using EVA. However, as EVA is a method that any managers can not take into consideration the constraints (e.g. the constraints concerning available periods of each resource, etc.) to take into consideration in case of assigning workers for a software project, there are many cases that SEAC can not be exactly estimated by using EVA. Therefore, the author proposes/discusses a new metric for evaluating exactly the situation of project execution, through combining use of the method to estimate EAC by using EVA and the method to estimate SEAC exactly by taking into consideration the constraints.