TY - CHAP A1 - Höfner, Peter A1 - Möller, Bernhard A2 - Apel, Sven A2 - Cook, William R. A2 - Czarnecki, Krzysztof A2 - Kästner, Christian A2 - Loughran, Neil A2 - Nierstrasz, Oscar T1 - Extended feature algebra [Extended Abstract] T2 - Proceedings of the First International Workshop on Feature-Oriented Software Development (FOSD), October 6, 2009, Denver, Colorado, USA N2 - Feature algebra was introduced as an abstract framework for feature oriented software development. One goal is to provide a common,clearly defined basis for the key ideas of feature orientation. We first present concrete models for the original axioms of feature algebra which represent the main features of feature oriented programs. However, these models show that the axioms of the feature algebra do not reflect some aspects of feature orientation properly. Hence we modify the axioms and introduce the concept of an extended feature algebra. Since the extension is also a generalisation, the original algebra can be retrieved by a single additional axiom. Last but not least we introduce more operators to cover concepts like overriding in the abstract setting. Y1 - 2020 UR - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/68909 UR - https://nbn-resolving.org/urn:nbn:de:bvb:384-opus4-689097 UR - https://www.infosun.fim.uni-passau.de/spl/apel/FOSD2009/ SN - 978-1-60558-567-3 SP - 75 EP - 80 PB - ACM CY - New York, NY ER -