Given the above specification, which of the following sets of values shows that the equivalence partition test design technique has been used correctly?

An automated air-conditioner is programmed to turn its heating unit on when the temperature falls below 17oC and to turn its refrigeration unit on when the temperature exceeds 26oC. The air-conditioner is designed to operate at temperatures between -10oC and +40oC.

  • A. -11oC, -1oC, 18oC, 27oC, 51oC
  • B. -11oC, -1oC, 12oC, 18oC, 27oC, 51oC
  • C. -11oC, 18oC, 51oC
  • D. -1oC, 12oC, 18oC, 27oC

Answer: Option A