A version model defines the items to be versioned, the common properties shared by all versions of an item, and the deltas. It also determines the way version sets are organized. It introduces dimensions of evolution such as revisions and variants, it defines whether a version is characterized in terms of the state it represents or in terms of some changes relative to some baseline, it selects a suitable representation for the version graphs, and it also provides operations for retrieving old versions and constructing new versions.
Another field related to version model is software history. It records all the versions of a software product safely and properly, it also records who created the revision along with what comment. Delta is used to reduce the spaces needed for storage, since two successive versions are often very similar (98% same on average).
It also provides supports for multi-user management. The traditional locking method is still used while a new advanced synchronizing method can greatly improve the efficiency.
Read more about this topic: Component Repository Management
Famous quotes containing the words version and/or model:
“Truth cannot be defined or tested by agreement with ‘the world’; for not only do truths differ for different worlds but the nature of agreement between a world apart from it is notoriously nebulous. Rather—speaking loosely and without trying to answer either Pilate’s question or Tarski’s—a version is to be taken to be true when it offends no unyielding beliefs and none of its own precepts.”
—Nelson Goodman (b. 1906)
“I’d like to be the first model who becomes a woman.”
—Lauren Hutton (b. 1944)