Topic
Systems architecture
About: Systems architecture is a research topic. Over the lifetime, 17612 publications have been published within this topic receiving 283719 citations. The topic is also known as: system architecture.
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TL;DR: By means of a design example, it is shown how these techniques can work together to meet some of the demands of third-generation systems.
Abstract: The future of third-generation wireless networking is discussed. The vision of the third generation is a single set of standards that can meet a wide range of wireless access applications. Third-generation systems, in harmony with broadband integrated services digital networks, will use shared resources to convey many information types. A single network architecture will serve its users efficiently in many environments, including moving vehicles, indoor and outdoor public areas, residences, offices, and factories. A study of a switching architecture, referred to as a cellular packet switch, and a packet transmission technique, referred to as a packet reservation multiple access is discussed. By means of a design example, it is shown how these techniques can work together to meet some of the demands of third-generation systems. >
397 citations
TL;DR: Using the definitions of bounded component behavior and protocol conformance relation, the designer can verify the adherence of a component's implementation to its specification at runtime, while the correctness of refining the specification can be verified at design time.
Abstract: In this paper, we propose a means to enhance an architecture description language with a description of component behavior. A notation used for this purpose should be able to express the "interplay" on the component's interfaces and reflect step-by-step refinement of the component's specification during its design. In addition, the notation should be easy to comprehend and allow for formal reasoning about the correctness of the specification refinement and also about the correctness of an implementation in terms of whether it adheres to the specification. Targeting all these requirements together, the paper proposes employing behavior protocols which are based on a notation similar to regular expressions. As proof of the concept, the behavior protocols are used in the SOFA architecture description language at three levels: interface, frame, and architecture. Key achievements of this paper include the definitions of bounded component behavior and protocol conformance relation. Using these concepts, the designer can verify the adherence of a component's implementation to its specification at runtime, while the correctness of refining the specification can be verified at design time.
395 citations
TL;DR: An agent architecture is designed and implemented that supports all of these different kinds of adaptation by exploiting a single underlying theoretical concept: an agent dynamically constructs explicit control plans to guide its choices among situation-triggered behaviors.
395 citations
Patent•
16 Mar 1994
TL;DR: In this article, the authors propose a collaboration system that integrates separate real-time and asynchronous networks for audio and video, and the latter for control signals and textual, graphical and other data in a manner which closely approximates the experience of face-to-face collaboration.
Abstract: A collaboration system that integrates separate real-time and asynchronous networks - the former for real-time audio and video, and the latter for control signals and textual, graphical and other data - in a manner which closely approximates the experience of face-to-face collaboration. These capabilities are achieved by exploiting a variety of hardware, software and networking technologies in a manner that preserves the quality and integrity of audio/video/data and other multimedia information, even after wide area transmission, and at a significantly reduced networking cost as compared to what would be required by presently known approaches. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations (12) and their interconnecting LANs (10) and WANs (15). In the case of a plurality of geographically dispersed LANs (10) interconnected by a WAN (15), the demands made on the WAN are significantly reduced by employing multi-hopping techniques, including avoiding the unnecessary decompression of data at intermediate hops, as well as video mosaicing and cut-and-paste technology.
387 citations
TL;DR: The paper provides practitioners with insight on how RFID technology can meet traceability requirements and what technological approach is more appropriate.
Abstract: Purpose – This paper aims to study the main requirements of traceability and examine how the technology of radio frequency identification (RFID) technology can address these requirements. It further seeks to outline both an information data model and a system architecture that will make traceability feasible and easily deployable across a supply chain.Design/methodology/approach – The design research approach is followed, associating traceability requirements to a proposed system design.Findings – The technological approach used has great implications in relation to the cost associated with a traceability system and the ease of its deployment.Research limitations/implications – Validation of the proposed information data model and system architecture is required through practical deployment in different settings.Practical implications – The paper provides practitioners with insight on how RFID technology can meet traceability requirements and what technological approach is more appropriate.Originality/val...
386 citations