The basis depends on the purpose and context; the employer must think about why it wants to monitor and pick the basis that best fits, must not use a one-size-fits-all approach, should identify and document every basis that applies from the outset, and should keep to it unless a good reason arises. A DPIA or the ICO's interactive tool can help.
This control maps to 1 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 1 it maps to, and the evidence behind each claim, over MCP and REST.