1 Identify cognitive characteristics of users (user profiling approach)‏

2 Define the tasks that users have to carry out (task analysis) based on their ‘semantic capabilities’

3 Evaluate user behavior during task execution (ethnography)‏

4 Derive a user requirement/specification, that must be complied with during development (if the system does not comply with the user requirement, is does not meet an essential quality criteria)

5 Have a validation mechanism to ensure compliance of the technology/application usability rrement

	embed