摘要: This article presents recent developments in CGWorld - a web based workbench for distributed development of knowledge base conceptual graphs, stored on central server. The initial version met many the needs that motivated its creation. It had excellent browsing, searching and editing features KB CGs. However support large data was not fully satisfying because architecture limitations. Subsequently changed according to latest area multi tier applications. paper describes several enhancements this implementation new increase scalability, reliability usability application.