Patent attributes
Methods and systems for controlling versions of models in modeling environments are disclosed. The versions of models and component interfaces are stored in a repository and checked in and out of the repository. The version designation of a model is changed when the model is checked in the repository. A selected version of the model is checked out of the repository and loaded directly in a memory so that users may load the selected version of the model without error. The loaded model is displayed with information on the version of the model. The version information may include the version number and author of the version. The version information may also include information on whether the model is locked with a version or in a read only mode.
