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A case study in refactoring a legacy component for reuse in a product line

: Kolb, R.; Muthig, D.; Patzke, T.; Yamauchi, K.


IEEE Computer Society:
21st IEEE International Conference on Software Maintenance 2005. Proceedings : Budapest, Hungary, 26 - 29 September 2005
Los Alamitos, Calif.: IEEE Computer Society, 2005
ISBN: 0-7695-2368-4
S.369-378 : Ill., Lit.
International Conference on Software Maintenance (ICSM) <21, 2005, Budapest>
Fraunhofer IESE ()
product line; software reuse; software refactoring; software component; product line implementation; case study

This paper describes activities performed to systematically improve the design and implementation of an existing software component in order to reuse it in a software product line. The activities are embedded in the application of Fraunhofer's PuLSE-DSSA approach for defining the architecture of a new product line. The component under investigation is the so called Image Memory Handler (IMH) which is used in Ricoh's current products of office appliances such as copier machines, printers, and multi-functional peripherals. It is responsible for controlling memory usage and compressing and decompressing image data. Both the improvement of the component's design and implementation are based on a systematic analysis and focused on increasing maintainability and reusability and hence suitability for use in a product line.