Deploying updated information-technology blueprints

A blueprint is an executable document that describes a real object and includes the expertise to create and operate that object. A "parent" blueprint can include a "child" blueprint, e.g., by reference. When the parent blueprint is deployed to configure a computing architecture for a customer application, the child blueprint is requested for deployment. A check of an update table is made. If there is an update of the child blueprint that is compatible with the parent blueprint, then the most-recent compatible update of the child blueprint is deployed in lieu of the requested child blueprint.