Practical experiences of designing a distributed collaborativesystem

摘要

The PI-CEE(Project Information Cooperative Enterprise Environment)system is a project information management system that uses Javaapplications and is based on the model-based distributed collaborativework support concept. It is designed to achieve optimal performance withmodel-based Java applications for application to large-scale projects.We applied the first prototype of PI-CEE to a large-scale project. Theresult was twofold: memory use and response time worsened with increasesin data quantity. Our design concept is based on doing four things:designing a server transaction system and database, implementing clientcache management, making improvements in server-client communication,and multiple-server replication. We discuss our system, the generallessons that we learned from its application, and the problems weencountered and their resolutions