The decision was taken to enter into a sole-source contract with KPMG because of the time pressures of needing to put in place the actual rollout in the airport processes, to liaise with airlines and airport authorities, and to ensure that the traveller journey and information that was being put out to the public about the app was accurate and timely.
The sole-source contract was pursued for reasons of speed of response. The reasons for choosing KPMG were documented. However, the Auditor General has pointed to the need for more documentation in that regard. I would say that the subsequent contracts also stemmed from the vendor's experience with and track record of excellent delivery on those services.