Integrated software environment development

The article deals with the compare of standard, new suggested information system (IS) development logical stages and realizing IS like system based on multithread processing. Developed systems, functioning in the telecommunication environment, which provides access to different services working separately and often being physically distributed, canpsilat be designed as single thread application. Standard and suggested stages are integrated; new CASE-toolkit is being developed for high-quality IS development in the shortest time. The main features of such toolkit is support of prototyping, early testing, analysis, easy reengineering, computing processes in distributed IS optimization and multithread computing in global environment including wireless channels. The work includes some new and fundamental approaches and suggests specific concepts to IS development.