Management of GIS can be done in a more centralized or more decentralized manner. In a a so-called enterprise or information-framework GIS, an organizational unit may be established to manage the GIS environment and run the core system, whereas usage is decentralized. In environments where GIS is used occasionally by various users, it may be set up as a separate service with a designated group that manages the GIS and also controls users' applications services. A second decision that needs to be made after the choice between more centralized or more decentralized management of GI and GIS is about where to place the GI management. Alternative options are in a line organization, in a support area, or at the executive level, each with their own advantages and disadvantages.