This report introduces both a design database model and a version and configuration model for keeping track of all these overwhelming numbers of software system versions and keep track of which object version belongs to which system configuration in an automated manner transparent to the user. This gives the software development team the chance to concentrate on what is needed to be done to fix or improve system components instead of worrying about managing this enormous amount of data. This paper also shade some lights on our design management and job assignment system (DMJAS) that uses these two models to manage both design data and development team.... Software evolution, Version control, Configuration management, Job assignment, Design database.