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.

Web-based tool support for dynamic management of distribution and parallelism in integrating architecture design and performance evaluation

Abstract: We introduce a light weight approach to support the development of parallel and distributed software systems over the World Wide Web. Our approach considers a highly distributed development process by multiple collaborating agents, it covers architecture design and architecture analysis right to implementation generation and dynamic accommodation of evolutionary change. The foundation of our approach is an architecture description language which supports separation between the independent development of loosely coupled and distributed software components containing multiple parallel control flows from the interconnection and configuration of such components. While the developer is provided with a local light weight front end tool for editing an architecture specification, a set of analysis tools are realized as back end services offered by specialized servers. These tools not only allow to check syntactic and semantic properties but also allow to assess a given architecture w.r.t. quantitative properties like performance.

On State-Level Architecture of Digital Government Ecosystems: From ICT-Driven to Data-Centric

Abstract: The “digital transformation” is perceived as the key enabler for increasing wealth and well-being by politics, media and the citizens alike. In the same vein, digital government steadily receives more and more attention. Digital government gives rise to complex, large-scale state-level system landscapes consisting of many players and technological systems – and we call such system landscapes digital government ecosystems. In this paper, we systematically approach the state-level architecture of digital government ecosystems. We will discover the primacy of the state’s institutional design in the architecture of digital government ecosystems, where Williamson’s institutional analysis framework supports our considerations as theoretical background. Based on that insight, we will establish the notion of data governance architecture, which links data assets with accountable organizations. Our investigation results into a digital government architecture framework that can help in large-scale digital government design efforts through (i) separation of concerns in terms of appropriate categories, and (ii) a better assessment of the feasibility of envisioned digital transformations. With its focus on data, the proposed framework perfectly fits the current discussion on moving from ICT-driven to data-centric digital government.

A connector-based approach for controlled data distribution in RTP architecture

Abstract: As the size and the complexity of software systems increases, a proper decomposition approach is strongly required, in particular to address issues about "when" and "how" distribution and elaboration have to be performed. In this paper we present RTP (Real Time Performers), a general-purpose architecture for the development of modular and configurable real-time distributed systems. It is based on basic and formally-modelled notions: projectors (data transferring components), state machines, command traces, topologies and strategists. The RTP decomposition approach is based on the component-connector pattern, refined with the specialization of the connector role. RTP rationale is the "externalization" and formalization of communication issues between components, with a strong separation between alignment mechanisms and policies.

Archetype: a unified method for the design and implementation of protocol architectures

Abstract: A method for the automated design, specification, and implementation of protocol architectures is introduced. A natural-language-like protocol architecture specification technique, called Archetype, is formulated. This technique aids the design by enabling an unambiguous specification of the protocol architecture on the level of the communications technologies used, without involvement in the complex implementation details of these technologies. The author defines a data-driven concurrent execution model and specifies the generation of executable specifications from abstract protocol architecture specifications. The exploitation of parallelism in the execution model enables the fulfilment of performance constraints placed on protocol architectures. An architecture based on a single X.25-level 3-like protocol is used as an illustrative example. >

Systemic modeling of integrated systems for decision making early on in the design process

Abstract: Integrated systems design has new possibilities due to the use of intelligent devices. However, these new technologies introduce new constraints for designing innovative architectures and assessing their dependability. This article presents the Safe-SADT formalism, an extension of the structured analysis and design technique SADT, for dependability studies and a computer-aided design CAD tool/software for modeling and comparing several architecture design choices early on in the design process. Its originality is based on operational architecture composed of function entities executed by material entities. A Monte Carlo approach allows simulation of “possible life history” and points out design's weaknesses using sensitivity analysis. We illustrate the tool functionalities with a temperature system. Possibilities for future research in terms of software development and industrial applications are provided.