We present Architectural Design Rewriting (ADR), a graphbased approach to deal with the design of reconfigurable software architectures. The key features we promote are: (i) hierarchical design; (ii) soft constraints for modeling QoS attributes; (iii) style-preserving reconfigurations; (iv) rule-based approach; and (v) algebraic presentation. Roughly, actual architectures are modeled by graphs ...

Architectural style is increasingly recognized as an important element of software architectural design. An expanding body of research (e.g. [GS93, PW92, DAR90, MQ94, AAG93]) is recognizing that when developing a particular system, designers tend not to explore all possible alternatives for its architecture. Instead, they use specific structures and idioms that are effective for the domain in w...

A central aspect of architectural design is the use of recurring organizational patterns and idioms| or architectural styles [GS93, PW92, MG92, GHJV94]. Examples include generic system organizations such as those based on data ow or layers, as well as speci c organizational structures such as the classical decomposition of a compiler, the OSI communication stack, and the MVC user interface para...

This article considers the utilization of architectural styles in the formal design of knowledge-based systems. The formal model of a style is an approach to systems modeling that allows software developers to understand and prove properties about the system design in terms of its components, connectors, configurations, and constraints. This allows commonality of design to be easily understood ...

We argue that it is useful to study classes of Multi-Agent System (MAS) architectures, corresponding to architectural styles in addition to particular architectures. In this work we focus on a particular abstraction level where MAS architectural styles are characterized according to properties, such as, the type of control used (from fully centralized to fully distributed), and the type of coor...

proper decisions play a crucial role in any software architecture design process. an important decision of design stage is the selection of a suitable software architecture style. lack of investigation on the quantitative impact of architecture styles on software quality attributes is the main problem in using such styles. consequently, the use of architecture styles in designing is based on th...

Architectural styles have enjoyed widespread popularity in the past few years, and for good reason: they represent the distilled wisdom of many experienced architects and guide less experienced architects in designing their architectures. However, architectural styles employ qualitative reasoning to motivate when and under what conditions they should be used. In this paper we present the concep...

Software architectural design is essential for complex distributed applications. Architectural specifications need to define the key aspects of the application, including its intended functions, interfaces, interoperability requirements, distributability, scalability, extensibility, target platforms and networks, and required middleware services. In this paper, we present an architectural exten...

Self-healing systems must be able to adapt to errors and changing resource environments without human intervention. We propose an architectural style, called Containment Units, particularly intended for self-healing systems. Containment Units feature the use of operational, evaluator, and change agent modules to encapsulate different activities required in self-healing systems. We present this ...

We focus on the problem of developing robotic architectures which are well-suited to supporting runtime evolution, rather than specific evolution techniques. Based on the insights provided by current robotic architectures, we elaborate on their characteristics and how well they support the quality of evolvability. Combined with insights from architectural styles developed by the software engine...