Abstract

This open access book presents the outcomes of the “Design for Future – Managed Software Evolution” priority program 1593, which was launched by the German Research Foundation (“Deutsche Forschungsgemeinschaft (DFG)”) to develop new approaches to software engineering with a specific focus on long-lived software systems. The different lifecycles of software and hardware platforms lead to interoperability problems in such systems. Instead of separating the development, adaptation and evolution of software and its platforms, as well as aspects like operation, monitoring and maintenance, they should all be integrated into one overarching process. Accordingly, the book is split into three major parts, the first of which includes an introduction to the nature of software evolution, followed by an overview of the specific challenges and a general introduction to the case studies used in the project. The second part of the book consists of the main chapters on knowledge carrying software, and cover tacit knowledge in software evolution, continuous design decision support, model-based round-trip engineering for software product lines, performance analysis strategies, maintaining security in software evolution, learning from evolution for evolution, and formal verification of evolutionary changes. In turn, the last part of the book presents key findings and spin-offs. The individual chapters there describe various case studies, along with their benefits, deliverables and the respective lessons learned. An overview of future research topics rounds out the coverage. The book was mainly written for scientific researchers and advanced professionals with an academic background. They will benefit from its comprehensive treatment of various topics related to problems that are now gaining in importance, given the higher costs for maintenance and evolution in comparison to the initial development, and the fact that today, most software is not developed from scratch, but as part of a continuum of former and future releases.

Highlights

  • Introducing Managed Software EvolutionRalf Reussner, Michael Goedicke, Wilhelm Hasselbring, Birgit Vogel-Heuser, Jan Keim, and Lukas Märtin “Software eats the world!” this famous statement by the entrepreneur Marc Andreesen targets the disruptive change of business models enabled through software, it describes a process ongoing over decades

  • In Sect. 10.1.1, we presented the differencing techniques that have been developed in the MOCA project, along with a summary of selected applications for analysing the linear evolution of monolithic models

  • The presented case studies show that the information that may be extracted from high-level differences generated by our approach are much richer than for conventional model differencing or text-based difference tools

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Summary

Introduction

Introducing Managed Software EvolutionRalf Reussner, Michael Goedicke, Wilhelm Hasselbring, Birgit Vogel-Heuser, Jan Keim, and Lukas Märtin “Software eats the world!” this famous statement by the entrepreneur Marc Andreesen targets the disruptive change of business models enabled through software, it describes a process ongoing over decades. There is software in daily use to support critical processes in enterprises, machines, or production systems, which was initially developed decades ago. Still this software needs to be maintained and adopted to newly required functionality or modern information technology (IT) platforms. An open community case study for software architecture modelling and evolution, the Common Component Modeling Example, is introduced in Sect. An open demonstrator for automated production systems, the Pick and Place Unit (PPU) and its extension (xPPU), is introduced in Sect. Decision knowledge comprises the knowledge about the problems, the decisions they address, solution approaches, their context, and rationale in terms of arguments, criteria, and the assessment of solution alternatives

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