The subject matter of this thesis is development of the program application for the management of variant model of the plate clutch. For this purpose, a standalone application using C#.NET programming language is developed. Such developed application is integrated with SolidWorks CAD package through application programming interface (API). Input design data is taken from user through GUI (Graphical User Interface). Output design results are passed to SolidWorks CAD package, which updates CAD model of the plate clutch. Because of this developed application a lot of the time required for design process and CAD modelling is reduced, hence overall cost of the design is also reduced.