Abstract
When a system evolves, its architecture co-evolves and becomes more complex. Thus, the development team needs to continuously expend modernizing efforts to reduce the complexity and improve the maintainability. To this end, software development processes can be used. However, many processes in their original form are mainly used for greenfield projects or integrating new requirements. Thus, many processes are not ideally suited to continuously modernize software while considering the existing requirements. In this paper, we present our experience during the modernization of a long-lived software system. During the modernization we used a process which is based on the spiral model and combined it with different agile development principles to continuously modernize a long-lived system in a lightweight manner. Our process aims at improving quality attributes of a software system while considering existing and changing requirements. This process was applied to the Hardware Configuration Definition (HCD), which is used on IBM Z for several decades to define I/O configurations. Using this real-world software system, we present the lessons learned and our experiences during the modernization.
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Busch, K., Böwing, N.C., Spinner, S., Noorshams, Q., Grötzner, M. (2021). An Experience Report on Modernizing I/O Configuration Software. In: Biffl, S., Navarro, E., Löwe, W., Sirjani, M., Mirandola, R., Weyns, D. (eds) Software Architecture. ECSA 2021. Lecture Notes in Computer Science(), vol 12857. Springer, Cham. https://doi.org/10.1007/978-3-030-86044-8_18
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