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Database-centric architecture
About: Database-centric architecture is a research topic. Over the lifetime, 1799 publications have been published within this topic receiving 48836 citations.
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TL;DR: A simple but realistic case study of the use of π-ARL for architecture refinement, which covers a simple, yet frequent, architecture refinement that would be problematic for most other refinement techniques.
Abstract: π-ARL is a formal (executable) architecture refinement language providing architecture-centric refinement primitives and constructs for their compositions. When applied, refinement actions expressed in π-ARL refine architectural models described in π-ADL outputting new refined models described in π-ADL. Enabling stepwise architecture refinement is a new challenge for the formal development of complex software systems. This article presents a simple but realistic case study of the use of π-ARL for architecture refinement. It illustrates the expressiveness and usefulness of π-ARL. The case study addresses the modelling and refinement of the software architecture of a Data Acquisition System. It covers a simple, yet frequent, architecture refinement that would be problematic for most other refinement techniques. Several refinement steps are performed, each dealing with a simple refinement, in order to achieve a concrete architecture.
48 citations
07 Apr 2014
TL;DR: Results achieved through the use of ProSA-RA have showed that it is a viable, efficient process and, as a consequence, it could contribute to the reuse of knowledge in several applications domains, by promoting the establishment of new reference architectures.
Abstract: 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 industry. However, the most of these architectures are still built using an ad-hoc approach, lacking of a systematization to their construction. If existing, these approaches could motivate and promote the building of new architectures and also support evolution of existing ones. In this scenario, the main contribution of this paper is to present the evolution of ProSA-RA, a process that systematizes the design, representation, and evaluation of reference architectures. ProSA-RA has been already applied in the establishment of reference architectures for different domains and this experience was used to evolve our process. In this paper, we illustrate an application of ProSA-RA in the robotics domain. Results achieved through the use of ProSA-RA have showed us that it is a viable, efficient process and, as a consequence, it could contribute to the reuse of knowledge in several applications domains, by promoting the establishment of new reference architectures.
48 citations
01 Jan 2001
TL;DR: AML attempts to circumscribe architectures in such a way that one may express all of these constraints without committing to which time scale will be used to enforce them.
Abstract: The language AML was designed to specify the semantics of architecture description languages, ADLs, especially ADLs describing architectures wherein the architecture itself evolves over time. Dynamic evolution concerns arise with considerable variation in time scale. One may constrain how a system may evolve by monitoring its development lifecycle. Another approach to such concerns involves limiting systems' construction primitives to those from appropriate styles. One may wish to constrain what implementations are appropriates concerns for interface compatibility are then germane. And finally, one may want to constrain the ability of the architecture to be modified as it is running. AML attempts to circumscribe architectures in such a way that one may express all of these constraints without committing to which time scale will be used to enforce them. Example AML specifications of the C2 style and Acme are presented.
48 citations
01 Jan 2008
TL;DR: This chapter provides an overview, comparison and detailed treatment of the various state-of-the-art approaches to describing and evolving software architectures, and discusses one particular framework named Tran SAT, which addresses the above problems of software architecture evolution.
Abstract: Software architectures must frequently evolve to cope with changing requirements, and this evolution often implies integrating new concerns. Unfortunately, when the new concerns are crosscutting, existing architecture description languages provide little or no support for this kind of evolution. The software architect must modify multiple elements of the architecture manually, which risks introducing inconsistencies. This chapter provides an overview, comparison and detailed treatment of the various state-of-the-art approaches to describing and evolving software architectures. Furthermore, we discuss one particular framework named Tran SAT, which addresses the above problems of software architecture evolution. Tran SAT provides a new element in the software architecture descriptions language, called an architectural aspect, for describing new concerns and their integration into an existing architecture. Following the early aspect paradigm, Tran SAT allows the software architect to design a software architecture stepwise in terms of aspects at the design stage. It realises the evolution as the weaving of new architectural aspects into an existing software architecture.
48 citations
TL;DR: The proposed architecture adopts wide portability of the MPICH design and remedies some of its deficiencies such as inefficient multifabric communication and non-thread-safety, as well as identifying and taking advantage of inherent concurrency in the message-passing software itself.
48 citations