Abstract
This paper describes XANA, an end user development framework that extends existing end user development tools for smart spaces with software product line concepts. The framework targets two types of users: the Software Product Line (SPL) designers and the end users. SPL designers use XANA's product line creation interface to create the software product line for end users. The product line creation interface allows SPL designers to capture the product line's feature model, the component design that implements each feature and the product line architecture. End users using XANA's application derivation interface select the features needed for their smart spaces and generate software applications from the product line previously created. In this paper we present the phases and operational semantics of XANA. We illustrate its use with a case study. The paper presents a preliminary user study that was conducted to assess the usability of the framework.
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