The NECESSARY AND SUFFICIENT CONDITION OF PERFECT MODEL
完美模型的充要条件及其结构分析

This paper outline the design and implementation of the PCLAgenda.PCLAgenda is a process-centered software engineering environment provided by SCOP system.Its functionality includes defining the software development process,guiding,controlling and aytomating the steps of software development,and supporting the cooperative work among individuals and teams.The kernel of PCLAgenda is the activity-cen-tered process model based on SCOP software development methodology.