Menus: The user interaction with the CRISTAL information management system can also be directed through sets of customized menu commands. Each resource record in the NPS/MORA prototype includes a descriptive profile, statement of historic significance, maintenance record, site description, and statement of special conditions that may have an effect on the resource. The underlying structure of this CRISTAL application is a primary (or foundation) worksheet that contains the system's basic information structure, including primary references to all of the entries in the resource inventory. This foundation worksheet is the primary search environment. From this primary level, the system user can branch to a resource specific worksheet file that contains detailed information on each historic resource at Mt. Rainier National Park. This secondary worksheet is where the information pertaining to a descriptive profile, statement of historic significance, maintenance record, site description, and special conditions for each resource is stored. Similar to the assignment of unique image filenames, each resource is assigned a unique worksheet file. The worksheet filename can be the same as the filename associated with the primary resource image, with the exception that the default file extension for worksheet files is [.CRS] (instead of [.TGA]). Index to the Appendices Running The Application 3 and 4. Menu Macros