There are two types of Internet Explorer versioning: Each Internet Explorer package will be assigned a version number, and versioning can be enforced so that older packages are not allowed to overwrite newer versions of the same package. Individual components in Internet Explorer are also versioned, and configured not to download or install if a compatible version of the component already exists on the client machine.
In configuration management, the process of assigning each release of a document or piece of software a version number. Automated systems, such as UNIX's Source Code Configuration System, allow a developer to check a module out for modification-the system assigns a new version number whenever the developer checks the module back in.
Document and picture versioning creates a backup copy of a file whenever it is saved to the library.