UMLR — UML: Support for maintaining what-if models in repository without massive duplication

Support for maintaining what-if models in repository without massive duplication

UML and descendant modeling languages should be able to support multiple solutions within a model without excessive duplication. This could be because of planned system evolution or because we need to compare multiple approaches. One solution might be to support standardized named effectivity/expiration fields for each model element (including dependencies). All diagrams, queries, reports, etc., could be conditioned by a selected date. Instead of dates, a set of version numbers could apply to each model element, with the model filtering work in same way.