Determining when and how often a file will be used should tell you which type it is. Use broad, generic headings that are meaningful to you. If the files are shared, the categories and headings must make sense to everyone involved. Design your system, complete with headings and sub-headings, before actually creating the files. Use nouns for headings.
Adjectives tend to get lost in memory.
Choose Locations and Fixtures Decide who will be using the files, when they will be used, and how much room is available for storage. Choose appropriate fixtures for holding files. File cabinets can be vertical, lateral or open shelf. Choose wall storage units or rolling file racks. The type of organizing fixture depends on your space and needs.