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The 777 flight deck will introduce two new functions, the electronic checklist function (ECL) and the flight deck communication function (FDCF), on interactive displays. Two cursor control devices (CCD) provide each pilot control of these new functions. The appearance and operation of the displays were standardized by specifying a common user interface (CUI). Ease of training and operation dictated an integrated design approach wherein the design and operational requirements for FDCF and ECL were developed together with the CCD and CUI.

A study is described which compares two types of input devices used to operate a flight management computer: a programmable legend (multifunction) keyboard and a conventional (dedicated) keyboard. Pilot performance measures, subjective responses, and a timeline analysis were used in evaluating the two keyboard concepts. A discussion of the factors to be considered in the implementation of a multifunction keyboard is included.