Software development processes

as a means to ensure software quality and productivity

have been widely accepted within the software development community.This research introduces how to assist developers to establish quality management plan and monitor the implementation of software processes quantitatively in a CASE environment.A PSEE (process-centered software engineering environment) named Softev has been brought forward to provide developers the environment to define

execute and monitor their processes.As UML is becoming a standard diagrammatic notation for object-oriented modeling and is spreading rapidly

it has been chosen to express the artifacts developed during the requirement analysis and system design stages.In the early products of software process engineering

there was not enough attention to be given to the metrics of software processes and artifacts.This research proposes a suite of metrics and gives the implementation in Softev.Managers are able to predict and supervise the software project more precisely.