Contains definitions of all system-wide data elements. For each data element, the Global Dictionary records name, type, validation rules, default value and access rules for security purposes. Whenever an item that has been defined in the Global Dictionary is accessed, you can be sure that it will be treated consistently and reliably. Control the layout, coloring and other display attributes of user interface screen displays. Within any screen there can be a combination of windows and fields.
Fields can be straight data-entry, lookup, calculated, or scrolled.
Display multiple records from a file as rows and columns on the user's screen. File-wide commands can be used to make changes to the whole file or selected groups of records. Control access security, function selection and the provision of on-line help for menu selections. Define the relationships between Files, Formats, Screens, and Views within the application. A Link gives an application designer the flexibility to create several logical schemes for manipulation of physical files.