What is the definition of specificity?

Answer 1

Drug specificty is the degree to which the effects of a drug are due to the one pharmacological action.

Answer 2

• Specification (or Spec) is the exact statement of the particular needs to be satisfied, or essential characteristics that a customer requires (in a good, material, method, process, service, system, or work) and which a vendor must deliver.
• Specifications are written usually in a manner that enables both parties (and/or an independent certifier) to measure the degree of conformance. They are, however, not the same as control limits (which allow fluctuations within a range), and conformance to them does not necessarily mean quality (which is a predictable degree of dependability and uniformity).
• Specifications are divided generally into two main categories:
  • (1) Performance specifications: conform to known customer requirements such as keeping a room's temperature within a specified range.
  • (2) Technical specifications: express the level of performance of the individual units, and are subdivided into:
    • (a) individual unit specifications which state boundaries (parameters) of the unit's performance consisting of a nominal (desired or mandated) value and tolerance (allowable departure from the nominal value,
    • (b) acceptable quality level which states limits that are to be satisfied by most of the units, but a certain percentage of the units is allowed to exceed those limits, and
    • (c) distribution specifications which define an acceptable statistical distribution (in terms of mean deviation and standard Deviation) for each unit, and are used by a producer to monitor its production processes. See also standard.

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