Associate text with each ambiguous symbol
If symbols whose meaning is not obvious are used, they should:
- Be accompanied by a text that clarifies their meaning.
- Be located near the accompanying text.
If it is not practical to associate a text with specific symbols whose meaning may not be clear (lack of space in the mock-up, for example), some solutions may be found later on in the development phase (by adding tooltips, for example).
Nevertheless, these are compromise solutions that are less effective than optimising the symbol directly with associated text.