Definitions for cohesionkoʊˈhi ʒən
This page provides all possible meanings and translations of the word cohesion
coherence, coherency, cohesion, cohesiveness(noun)
the state of cohering or sticking together
(botany) the process in some plants of parts growing together that are usually separate (such as petals)
(physics) the intermolecular force that holds together the molecules in a solid or liquid
State of cohering, or of working together.
Unit cohesion is important in the military.
Various intermolecular forces that hold solids and liquids together.
Growing together of normally distinct parts of a plant.
Degree to which different modules in a computing system are functionally dependent on others.
Grammatical or lexical relationship between different parts of the same text.
Origin: From cohésion, from cohaesionem.
the act or state of sticking together; close union
that from of attraction by which the particles of a body are united throughout the mass, whether like or unlike; -- distinguished from adhesion, which unites bodies by their adjacent surfaces
logical agreement and dependence; as, the cohesion of ideas
In computer programming, cohesion refers to the degree to which the elements of a module belong together. Thus, it is a measure of how strongly-related each piece of functionality expressed by the source code of a software module is. Methods of measuring cohesion vary from qualitative measures classifying the source text being analyzed using a rubric with a hermeneutics approach to quantitative measures which examine textual characteristics of the source code to arrive at a numerical cohesion score. Cohesion is an ordinal type of measurement and is usually expressed as “high cohesion” or “low cohesion” when being discussed. Modules with high cohesion tend to be preferable because high cohesion is associated with several desirable traits of software including robustness, reliability, reusability, and understandability whereas low cohesion is associated with undesirable traits such as being difficult to maintain, difficult to test, difficult to reuse, and even difficult to understand. Cohesion is often contrasted with coupling, a different concept. Nonetheless high cohesion often correlates with loose coupling, and vice versa. The software quality metrics of coupling and cohesion were invented by Larry Constantine based on characteristics of “good” programming practices that reduced maintenance and modification costs.
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