functional
121Functional dependency — A functional dependency (FD) is a constraint between two sets of attributes in a relation from a database.Given a relation R , a set of attributes X in R is said to functionally determine another attribute Y , also in R , (written X → Y ) if and… …
122Functional specification — A functional specification (also, functional spec , specs , functional specifications document (FSD) , or Program specification ) in software development, is the set of documentation that describes the requested behavior of an engineering system …
123Functional predicate — In formal logic and related branches of mathematics, a functional predicate, or function symbol, is a logical symbol that may be applied to an object term to produce another object term.Functional predicates are also sometimes called mappings ,… …
124Functional selectivity — Not to be confused with binding selectivity. Functional selectivity (or “agonist trafficking”, “biased agonism”, “differential engagement” and “protean agonism”) is the ligand dependent selectivity for certain signal transduction pathways in one… …
125Functional equation (L-function) — In mathematics, the L functions of number theory are expected to have several characteristic properties, one of which is that they satisfy certain functional equations. There is an elaborate theory of what these equations should be, much of which …
126Functional Software Architecture — A Functional Software Architecture (FSA) is an architectural model that identifies enterprise functions, interactions and corresponding IT needs. These functions can be used as reference by different domain experts to develop IT systems as part… …
127Functional load — In linguistics and especially phonology, functional load refers to the importance of certain features in making distinctions in a language. English vowels, for example, have a very high functional load: There are innumerable sets of words… …
128Functional symptom — A functional symptom refers to a medical symptom without an apparent cause (etiology) even after the completion of extensive diagnostic assessments. By default, a functional symptom often is judged to have causes that are neither physical nor… …
