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A von Neumann architecture scheme. The von Neumann architecture —also known as the von Neumann model or Princeton architecture —is a computer architecture based on a 1945 description by John von Neumann, and by others, in the First Draft of a Report on the EDVAC. [ 1 ] The document describes a design architecture for an electronic digital ...
A system architecture primarily concentrates on the internal interfaces among the system's components or subsystems, and on the interface (s) between the system and its external environment, especially the user. (In the specific case of computer systems, this latter, special, interface is known as the computer human interface, AKA human ...
The High Level Architecture ( HLA) is a standard for distributed simulation, used when building a simulation for a larger purpose by combining (federating) several simulations. [ 1] The standard was developed in the 1990s under the leadership of the US Department of Defense [ 2] and was later transitioned to become an open international IEEE ...
A sample system context diagram using Hatley–Pirbhai modeling. Hatley–Pirbhai modeling is a system modeling technique based on the input–process–output model (IPO model), which extends the IPO model by adding user interface processing and maintenance and self-testing processing.
In business and IT development the term "systems modeling" has multiple meanings. It can relate to: the use of model to conceptualize and construct systems. the interdisciplinary study of the use of these models. the systems modeling, analysis, and design efforts. the systems modeling and simulation, such as system dynamics.
Computer architecture. Block diagram of a basic computer with uniprocessor CPU. Black lines indicate control flow, whereas red lines indicate data flow. Arrows indicate the direction of flow. In computer science and computer engineering, computer architecture is a description of the structure of a computer system made from component parts. [ 1]
In systems engineering, software engineering, and computer science, a function model or functional model is a structured representation of the functions (activities, actions, processes, operations) within the modeled system or subject area. [1] Example of a function model of the process of "Maintain Reparable Spares" in IDEF0 notation.
Software development. The V-model is a graphical representation of a systems development lifecycle. It is used to produce rigorous development lifecycle models and project management models. The V-model falls into three broad categories, the German V-Modell, a general testing model, and the US government standard. [ 2]