This book explores various aspects of component-based architectures, focusing on their adaptability and efficiency in software development. It delves into data encapsulation, binary change set composition, and automated flexible component substitution, highlighting the dynamic adaptation of aspect-oriented components. The text addresses the challenges of component-based game development, particularly concerning rising costs and deadlines, while also examining quality of service (QoS), runtime verification, and monitoring methodologies. The book presents performance assessments for e-government services and discusses QoS contract negotiation in distributed systems. It investigates execution environments for software components and monitoring architectural properties in dynamic systems. Additionally, it covers extra-functional properties and compositional reasoning, alongside a modeling approach to analyze error propagation impacts on system reliability. Key topics include performance-driven interface contract enforcement, integration of time issues in applications, and slicing component behavior specifications. The text also explores execution-level component composition models, web services, and late composition verification, along with an algorithmic approach to capturing web service provider constraints. Furthermore, it introduces Soya, a programming model for component composition, and shares experiences with safe dynam
