For D1, learners need to design a control system that uses different types of sensors. ‘Different’ in this case should be taken to mean the most diverse set possible, less is definitely not more in this case. Evidence could include plans, designs, sketches, presentations, user feedback and written reports.

For D2, learners must evaluate the design and performance of a control system, not necessarily their own. A written report might be most appropriate but alternatives are possible. Whatever the method of evidence chosen, the learner must show they have comprehended control systems to the point where they are capable of making a lucid and well-argued evaluation of the control system.

For M4, learners must suggest improvements to their control system following testing.

For P6 and P7, learners must design and implement a control system. This should be a full working model that demonstrates what the learner has and has not understood from the unit. Logbooks, photos and plans can all be useful evidence, supplemented by test records and witness statements or observation records. The design should include all the elements outlined in the unit content. Testing should include performance testing,ie does it meet its objective efficiently and effectively

For P6 and P7, learners must design and implement a control system. This should be a full working model that demonstrates what the learner has and has not understood from the unit. Logbooks, photos and plans can all be useful evidence, supplemented by test records and witness statements or observation records. The design should include all the elements outlined in the unit content. Testing should include performance testing,ie does it meet its objective efficiently and effectively

For M1, as an extension of P2, learners must compare analogue and digital signals. The comparison should contain clear understanding of both types of signal, and relate analogue and digital clearly.

M3 requires an explanation of the principles and uses of proportional control.

For M2, learners must explain the need for signal conversion. Learners will be expected to demonstrate clear comprehension of signal conversion theory.