Variant domains and variant maps in a versioned database managem

Details Variant domains and variant maps in a versioned database managem Variant domains and variant maps in a versioned database managem

1994-12-07

1997-02-04

Black, Thomas G.

Boots, shoes, and leggings

364DIG1, 3642823, 3642831, G06F 1730

Patent

active

056008325

ABSTRACT:
A method is provided in a versioned database management system for allowing parts to be versioned according to different variant hierarchies, and for maintaining correct configurations of versions of parts as those parts are drawn down, changed, and promoted. Each version of a part is associated with a variant domain. Each variant domain is represented by a single variant hierarchy whose levels can be used to reference versions of parts in that variant domain and controls how versions of parts in that variant domain are drawn down, changed, and promoted. Variant domain default groups are provided so that tools may add new parts without specifying the variant domains to which the parts are to belong. In order to control which versions of parts and from which version domains are visible, variant maps are defined by the user installation. When a change is made for one configuration, it is simultaneously made in any other configuration identified by a variant map which includes the same variant ID. A variant map thus constructed is used by the VDMS to determine the variant hierarchy level to which any instances created belong, and to determine which instances in a promote group are promoted and to which hierarchy level they are promoted.

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