<p>This paper is based on the XAP system (eXtended Application Provisioning) and serves for the modeling of application family. The importance of modeling application family is increasing rapidly. To improve a mechanism to express the structure, properties of concepts, features and implementations within an application family becomes necessary and important. Feature tree is a well accepted means for the product line. We can use and improve it to suit our requirements in the following way</p><p>In the degree project, we create a tool to model application family with reusability, commonality and variability. The hierarchy, feature properties and dependencies are graphically represented.</p>

This paper is based on the XAP system (eXtended Application Provisioning) and serves for the modeling of application family. The importance of modeling application family is increasing rapidly. To improve a mechanism to express the structure, properties of concepts, features and implementations within an application family becomes necessary and important. Feature tree is a well accepted means for the product line. We can use and improve it to suit our requirements in the following way In the degree project, we create a tool to model application family with reusability, commonality and variability. The hierarchy, feature properties and dependencies are graphically represented.