System

systemssubsystemsubsystemssub-systemcomponentfunctional componentsgeneral systemKBS Joynatural systemsphysical systems
A system is a group of interacting or interrelated entities that form a unified whole.wikipedia
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Structure

structuralstructuresstructurally
Structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized.

Behavior

behaviourbehavioralbehaviors
Behavior (American English) or behaviour (Commonwealth English) is the actions and mannerisms made by individuals, organisms, systems or artificial entities in conjunction with themselves or their environment, which includes the other systems or organisms around as well as the (inanimate) physical environment.

Systems analysis

analysissystems analystSystem analysis
The Merriam-Webster dictionary defines system analysis as "the process of studying a procedure or business in order to identify its goals and purposes and create systems and procedures that will achieve them in an efficient way".

Systems design

system designdesignsystems designer
Systems design is the process of defining the architecture, modules, interfaces, and data for a system to satisfy specified requirements.

Systems modeling

system modelsystem modelingSystems modelling
Systems modeling or system modeling is the interdisciplinary study of the use of models to conceptualize and construct systems in business and IT development.

Systems architecture

system architecturearchitecturesystems
A system architecture or systems architecture is the conceptual model that defines the structure, behavior, and more views of a system.

View model

viewsintegrated viewView
Furthermore, we all have different interests in a given system and different reasons for examining the system's specifications.

Conceptual system

Conceptual systemsconceptualconceptual studies
For sociological models influenced by systems theory, where Kenneth D. Bailey defined systems in terms of conceptual, concrete, and abstract systems, either isolated, closed, or open. George J. Klir maintained that no "classification is complete and perfect for all purposes", and defined systems as abstract, real, and conceptual physical systems, bounded and unbounded systems, discrete to continuous, pulse to hybrid systems, etc. The interactions between systems and their environments are categorized as relatively closed and open systems.
In this context a system is taken to mean "an interrelated, interworking set of objects".

Scientific modelling

modelmodelingmodels
A system is a set of interacting or interdependent entities, real or abstract, forming an integrated whole.

Living systems

Living systems theoryliving systemJ.G. Millers theory of open and self organizing systems
Theorists include in natural systems: subatomic systems, living systems, the solar system, galaxies, and the Universe.
Miller considers living systems as a subset of all systems.

Software system

software systemssystemssystem
In computer science and information science, system is a hardware system, software system, or combination, which has components as its structure and observable inter-process communications as its behavior.
A software system is a system of intercommunicating components based on software forming part of a computer system (a combination of hardware and software).

Systems engineering

systems engineersystem engineeringsystems
Important distinctions have also been made between hard systems – technical in nature and amenable to methods such as systems engineering, operations research, and quantitative systems analysis – and soft systems that involve people and organisations, commonly associated with concepts developed by Peter Checkland and Brian Wilson through Soft Systems Methodology (SSM) involving methods such as action research and emphasis of participatory designs.
Defining and characterizing such systems and subsystems and the interactions among them is one of the goals of systems engineering.

Soft systems methodology

soft systemshuman activity systemsInformation Requirement Analysis/Soft systems methodology
Important distinctions have also been made between hard systems – technical in nature and amenable to methods such as systems engineering, operations research, and quantitative systems analysis – and soft systems that involve people and organisations, commonly associated with concepts developed by Peter Checkland and Brian Wilson through Soft Systems Methodology (SSM) involving methods such as action research and emphasis of participatory designs.
To intervene in such situations the soft systems approach uses the notion of a "system" as an interrogative device that will enable debate amongst concerned parties.

Component (UML)

components
In computer science and information science, system is a hardware system, software system, or combination, which has components as its structure and observable inter-process communications as its behavior.
A component in the Unified Modeling Language represents a modular part of a system that encapsulates the state and behavior of a number of classifiers.

Systems theory

systems thinkinginterdependencegeneral systems theory
Systems are the subjects of study of systems theory.
Systems theory is the interdisciplinary study of systems.

Self-organization

self-organizingself-organisationself-organized
Organizational theorists such as Margaret Wheatley have also described the workings of organizational systems in new metaphoric contexts, such as quantum physics, chaos theory, and the self-organization of systems.
Self-organization, also called (in the social sciences) spontaneous order, is a process where some form of overall order arises from local interactions between parts of an initially disordered system.

Thermodynamic system

systemopen systemboundary
In engineering and physics, a physical system is the portion of the universe that is being studied (of which a thermodynamic system is one major example).
Non-equilibrium thermodynamics allows its state variables to include non-zero fluxes, that describe transfers of mass or energy or entropy between a system and its surroundings.

Unbounded system

George J. Klir maintained that no "classification is complete and perfect for all purposes", and defined systems as abstract, real, and conceptual physical systems, bounded and unbounded systems, discrete to continuous, pulse to hybrid systems, etc. The interactions between systems and their environments are categorized as relatively closed and open systems.
In the theory of dynamical systems, an unbounded system is a system that has no bound; i.e., one that can expand forever with no limit.

Complex system

complex systemscomplexity theorycomplexity science
A complex system is a system composed of many components which may interact with each other.

Hierarchy

hierarchicalsubordinatehierarchies
Logic has been applied to categories such as taxonomy, ontology, assessment, and hierarchies.

Meta-system

Meta-systemsmetasystemMeta system
In general, they link the concepts "system" and "meta-".

Market (economics)

marketmarketsmarket forces
A market is one of the many varieties of systems, institutions, procedures, social relations and infrastructures whereby parties engage in exchange.

Béla H. Bánáthy

Bela H. BanathyBéla BánáthyBanathy, B.H.
Bela H. Banathy cautioned that for any inquiry into a system understanding its kind is crucial, and defined "natural" and "designed", i. e. artificial, systems.
He was also honorary editor of three international systems journals: Systems Research and Behavioral Science, the Journal of Applied Systems Studies, and Systems.

Information system

information systemscomputer information systemssystems
Zheng provided another system view of information system which also adds processes and essential system elements like environment, boundary, purpose, and interactions.

Organization development

organizational developmentorganisational developmentorganisation development
In management science, operations research and organizational development (OD), human organizations are viewed as systems (conceptual systems) of interacting components such as subsystems or system aggregates, which are carriers of numerous complex business processes (organizational behaviors) and organizational structures.
Interventions are structured activities used individually or in combination by the members of a client system to improve their social or task performance.