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Architecture patterns and tactics are established architectural solutions widely used as design decisions during software architecture design phase. Architecture pattern provides the skeleton of a system by defining the components and connector required to establish the requirements of the system. It also encourages reusing the architecture to many similar systems or family of systems. Moreover, architecture...
Tight coupling of business and the software implementation is the biggest difficulty of designing software system architecture. The business change will inevitably lead to software restructuring, which is the necessary result of business-driven development, and it greatly restrict the development of software productivity. Metadata driven design, as an architecture pattern, can effectively reduce the...
Secure by design is an approach to developing secure software systems from the ground up. In such approach, the alternate security tactics are first thought, among them, the best are selected and enforced by the architecture design, and then used as guiding principles for developers. Thus, design flaws in the architecture of a software system mean that successful attacks could result in enormous consequences...
Architectural Sustainability refers to the ability of an architecture to achieve its goals while sustaining its value on dimensions related to environmental, social, economic, individual and/or technical during its operation and evolution. While the process of architectural design implies a fit between the requirements, system conditions and constraints; incomplete information and uncertainty may...
Software reference architectures provide guidance when designing systems for particular application or technology domains. In this paper we contribute a better understanding of developing and using reference architectures: First, we relate the concept of software reference architecture to other architectural concepts to help engineers better understand the relationships between software development...
Software architecture lies at the backbone of any software system and its choice directly influences important non-functional characteristics such as maintainability, extensibility, etc. Up-to-date software architecture descriptions should be at any time available to support the analysis and evaluation of the current state of the architecture. However the current state of the art lacks both methodologies...
Reference architectures have emerged as a special type of software architecture that achieves well-recognized understanding of specific domains, promoting reuse of design expertise and facilitating the development, standardization, and evolution of software systems. Because of their advantages, several reference architectures have been proposed and have been also successfully used, including in the...
The growing interest in adaptive software systems has resulted in a number of different proposals for the design of adaptive systems. Some approaches adopt architectural models, whereas others model adaptation options, at the level of requirements. This dichotomy has motivated us to perform a comparative study between two proposals for the design of adaptive systems: the Rainbow Framework (architecture-based)...
Reference architectures have emerged as a special type of software architecture that achieves well-recognized understanding of specific domains, promoting reuse of design expertise and facilitating the development, standardization, and evolution of software systems. Designed for various domains and purpose, they have increasingly impacted important aspects of system development, such as productivity...
The following topics are dealt with: scheduling; resource management; architecture; mobile computing; sensor neworks; software systems; communication networks; and performance evaluations.
When developing a software system, its architecture must be considered so that it can be understood, updated, and improved. In general, considering the architectural artefacts is not enough. The reasons, assumptions and justifications bore in mind by the architects during the architecture design stage must be also known. Nevertheless, not all aspects analysed during the design process can be identified,...
Change impact analysis (CIA) methods have been developed to identify the consequences of making changes to system artifacts and to support decision making with regards to that change. There is a growing body of research on CIA methods that specifically addresses changes and their impacts at a system architecture level. Most of the methods have been developed and validated on software system domain...
In the last three years we have experimented using contracts as to enable the interoperability of distributed systems, with our main focus being autonomic systems. Starting with the definitions of contracts in the TM Forum's NGOSS architecture, we have experimented with contracts from three different viewpoints: architecture, meta-model and implementation. This paper introduces the results of that...
Software architectures have emerged as a promising approach for managing, analyzing, building, integrating, reusing, and improving the quality of software systems. Specifically, early design decisions can be improved by the analysis of architectural models for different properties. This paper addresses the problem of estimating the reliability of data-flow architectures before the construction of...
This paper is a retrospective arising from a WCRE paper published in 1998 promoting a relational approach to manipulate software architecture and to help solve various problems in software analysis. That paper explains how Tarskipsilas binary relational algebra, embedded in a language such as Grok, can solve such problems. Tarskipsilas notation is elegant and often efficiently executable when the...
An important issue to the adoption of any enterprise architectural approach is the availability of tools to support the development, storage, presentation, analysis, improvement and evolution of enterprise architecture representations. As with enterprise architecture methodologies, enterprise architecture tools to support the architectural development process are still emerging. Most important software...
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