The device must be necessary to the objective: the employer checks that no less intrusive means would achieve it and determines which data are strictly needed, how long they must be kept and which persons may access them because of their duties. Measuring productivity over longer periods rather than continuously is given as an example of a proportionate design (a transparent count of files handled per quarter).
This control maps to 2 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 2 it maps to, and the evidence behind each claim, over MCP and REST.