The Sleep Cycle app uses the accelerometer in your iPhone to detect your movements while you sleep. You move in different ways throughout the night, and these movements are tied in with the different phases of sleep you pass through, from light sleep, to REM sleep to deep sleep, and back again.
A skills assessment is typically utilized in professional environments in which it is used to evaluate the productivity and professional potential of a person. This type of assessment can be used to analyze how well a possible new-hire might fit into a particular environment.
This is where it helps to have a competency framework for each person's role, and it's where it's worth conducting a training needs assessment to identify the training and development that each person needs. Throughout this process, different people will want or need different things in relation to work and training.