Future-proof software-systems

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This book emphasizes the significance of software architecture in developing long-lasting, mission-critical, and trustworthy software systems. The author introduces “Managed Evolution” as a robust strategy, alongside the engineering best practice of “Principle-based Architecting.” Key architecture principles are explored, including Business Value, Changeability, Resilience, and Dependability. The author asserts that the software development community must ensure the production and operation of useful, dependable, and trustworthy software that delivers business value while maintaining quality-of-service properties such as security, safety, performance, and integrity. As noted, creating dependable software requires balancing investments in business functionality and quality-of-service attributes. The text covers various concepts, including Principle-Based Architecting, Managed Evolution Strategy, Future Principles for Business Value, Legacy Software Modernization, and architecture principles for Changeability, Resilience, and Dependability. It is enriched with numerous figures, tables, examples, and illustrative quotations. This work provides essential engineering practices designed for integration into software development processes focused on creating systems that embrace Managed Evolution.