Component may refer to:

In engineering, science, and technology

Generic systems

System A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its open system (systems theory), environment, is described by its boundaries, str ...

components, an entity with discrete structure, such as an assembly or software module, within a system considered at a particular level of analysis * Lumped element model, a model of spatially distributed systems

Electrical

Component video Component video is an analog video signal that has been split into two or more component channels. In popular use, it refers to a type of component analog video (CAV) information that is transmitted or stored as three separate signals. Compo ...

, a type of analog video information that is transmitted or stored as two or more separate signals *

Electronic component An electronic component is any basic discrete electronic device or physical entity part of an electronic system used to affect electrons or their associated fields. Electronic components are mostly industrial products, available in a singula ...

, a constituent of an electronic circuit *

Symmetrical components In electrical engineering, the method of symmetrical components simplifies the analysis of unbalanced three-phase power systems under both normal and abnormal conditions. The basic idea is that an asymmetrical set of ''N'' phasors can be expresse ...

, in electrical engineering, analysis of unbalanced three-phase power systems

Mathematics

Color model In color science, a color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components. When this model is associated with a precise description ...

, a way of describing how colors can be represented, typically as multiple values or color components * Component (group theory), a quasi-simple subnormal sub-group *

Connected component (graph theory) In graph theory, a component of an undirected graph is a connected subgraph that is not part of any larger connected subgraph. The components of any graph partition its vertices into disjoint sets, and are the induced subgraphs of those sets. ...

, a maximal connected subgraph *

Connected component (topology) In topology and related branches of mathematics, a connected space is a topological space that cannot be represented as the union of two or more disjoint non-empty open subsets. Connectedness is one of the principal topological properties t ...

, a maximal connected subspace of a topological space *

Vector component In mathematics, physics, and engineering, a Euclidean vector or simply a vector (sometimes called a geometric vector or spatial vector) is a geometric object that has magnitude (or length) and direction. Euclidean vectors can be added and scal ...

, result of the decomposition of a vector into various directions

Science

* Component (thermodynamics), a chemically independent constituent of a phase of a system

Software

Component (UML) 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. Its behavior is defined in terms of ''provided'' and ''required'' interfaces,OMG (2008). ...

, definition of component in the Unified Modeling Language *

Component-based software engineering Component-based software engineering (CBSE), also called component-based development (CBD), is a style of software engineering that aims to construct a software system from software component, components that are loosely-Coupling (computer program ...

, a field within software engineering dealing with reusable software elements *

Software component A software component is a modular unit of software that encapsulates specific functionality. The desired characteristics of a component are reusability and maintainability. Value Components allow software development to assemble software ...

, a reusable software element

Chinese

Chinese character component In written Chinese, components () are building blocks of characters, composed of strokes. In most cases, a component consists of more than one stroke, and is smaller than the whole of the character. For example, the character consists of two com ...

, a structural unit between

Chinese character strokes Strokes ( zh, t=筆畫, s=笔画, p=bǐhuà) are the smallest structural units making up written Chinese characters. In the act of writing, a stroke is defined as a movement of a writing instrument on a writing material surface, or the trace l ...

and

Chinese whole characters A Chinese whole character, or whole Chinese character ( zh, t=漢字整字, s=汉字整字, p=hànzì zhěngzì), is a complete Chinese character. It lies at the final level of the stroke-component-character Chinese character composition. Accordin ...

Other uses

* Component (VTA), a light-rail station in San Jose, California *Part of the grammatical structure of a sentence, a concept relating to the catena *Component

ingredient In a general sense, an ingredient is a substance which forms part of a mixture. In cooking, recipes specify which ingredients are used to prepare a dish, and the term may also refer to a specific food item in relation to its use in different re ...

, in a culinary dish