The purpose of this study is to provide a quantitative evaluation index of object-oriented software development productivity for EJB 3.x. The lightweight container architecture is a newly-developed architecture in order to solve demerits that N-Tiers enterprise architecture has and to support merits therein. However, there have been insufficient studies on a performance evaluation of EJB 3.x on an identical platform. Since a quantitative analysis has been performed only with respect to a partial LoC(Line of Code) analysis, there have been insufficient objective evaluation indices and guidelines for a new specification released. Accordingly, there has been limited evaluation of software development productivity and on new innovations in a project. This study then intends to provide evaluation guidelines for an objective software development productivity comparison by development platform environment.