The framework section describes a model of interaction between the different user capabilities, and also shows how the population data and design guidance for each capability should be interpreted.

The user capabilities are grouped into three categories, which are sensory (vision and hearing), cognitive (thinking and communication) and motor (locomotion, reach & stretch and dexterity).

For each capability, the effects of capability loss and the crucial functions for product interaction are described. Then design guidance and population statistics are provided.