A diagram must add a level of explanation and value beyond what can be conveyed by written text. Hence, the use of a diagram should only be considered in certain more complex cases.

You should ensure that diagrams:-

  • are clear and easy to understand;
  • follow normal reading direction, from left to right and top to bottom;
  • use simple shapes and as few different shapes as possible;
  • have a clear starting point;
  • do not have overlapping lines;
  • do not rely on colour alone to convey meaning.