The characteristic length of time that is required for a system undergoing relaxation to move to its equilibrium state. If the system follows an exponential law G = G_0 exp(-t / τ), the relaxation tim
e is the time required for G to obtain the fraction 1/e of its initial value G_0.
The date and time when a resource is madeavailable. The availability of a resource coincides with the release of aresource description. If the Release Date is specified as a future date thenit indicat
es that resource should not be made available until that time.However, this is only advisory and in practice the Release Date should bethe actual date the resource description was published.
The status of an application, software, ontologyor other code in terms of its release cycle.
Values: [alpha(undefined)](https://n2t.net/99152/-), [beta(undefined)](https://n2t.net/99152/-), [releaseC
anditate(undefined)](https://n2t.net/99152/-), [stableRelease(undefined)](https://n2t.net/99152/-), [deprecated(undefined)](https://n2t.net/99152/-)
#{g: xqsoftware(undefined) | -} #{g: xqcode(undefined) | -} #{g: xqapplication(undefined) | -}
The ability of an element of the SWE service network to perform its required functions under its given operational conditions. The reliability of an element of the system is considered "undetermined"
until it has been evaluated. When the element fulfils all predetermined criteria, it can be considered "reliable".
A layer of ground, now perennially frozen, lying immediately below the modern active layer; its thickness indicates the greater annual depth of thaw that occurred during a previous period.