Revision effectivity configuration algorithm

You can use Has Status revision rule entries to configure revisions by their effectivities. A revision rule entry is qualified by one of the following: Configured by effective date Configured by effective unit For any item, a revision rule must configure only one revision, but revisions may have overlapping effectivities. Typical effectivity unit configuration The following is an example of effectivity ranges for three revisions of an item with open-ended unit number effectivity. If the structure is configured at unit 7, revision A is configured. If the structure is configured at unit 15, revision B is configured. Revision effectivity configuration algorithm with closed range The following is an example of effectivity ranges for three revisions of an item with closed range effectivity, that is, with an end unit or date set. A check mark (tick) indicates the particular revision that is configured for a given effectivity point. When the effective point line crosses only one revision, the revision is configured, as shown for revisions A and D. The red line corresponds to the effective point (date or unit) at which the structure is being configured. If the effective point line crosses more than one revision, the revision with the latest start date or unit is configured, as shown for revision B. If two or more revisions have the same start date (for example, revisions C and D), the revision with the latest release date is configured, as shown for revision D.