Table 1. Basic requirements for the final assessment instrument.

Face validity	Displaying full spectrum of mobilisation Inclusion of positioning and transfer abilities
Logical validity	Focus on the independence of functioning Item definition and item-to-item differentiation by established classification categories (based on ICF categories and subcategories of the ICF chapter d4, mobility [1])
Applicability and user friendliness	Simple clinical applicability Hierarchical composition Interprofessional applicability Assessment integration in regular therapy procedures Time efficiency of scoring