A project to develop a foreign exchange Automated Telling Machine for an airport has been planned and a risk assessment has shown that there are 3 key risks:
I. There is a risk that usability will be a problem for visually impaired users because the operation requires viewing several screens in sequence with relatively small text. This has been assessed as medium likelihood with high impact.
II. There is a risk that response will be relatively slow because the foreign exchange rates will be checked before each transaction; this has been assessed as medium likelihood with medium impact.
III. There is a risk that accuracy of calculations could lead to cumulative errors. This has been assessed as low likelihood with high impact.
The test strategy currently requires performance testing during system test, usability testing during User Acceptance Test and accuracy tests at every test level. The project schedule is under time pressure.
Which of the following possible risk mitigation actions should be prioritized highest?
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