As documentation exclusively in text form is disadvantageous, which elements are helpful?

descriptions with different levels of detail for different stakeholders, sketches, photos, hand drawings, XML models, BPMN$,$ and EPC models

TOGAF models following BPMN or the EPC method, sketches, hand drawings, UML models and diagrams, and other semiformal and formal specifications process models following BPMN or the EPC method, sketches, hand drawings, UML models and diagrams, and other semiformal and formal specifications process models following BPMN or the EPC method, sketches, photos, drawings, UML models and diagrams, and other semicorrect and correct specifications