By Lamma E., Mello P., Riguzzi F.
We current a device for measuring the functionality aspect (FP) software program metric from the specification of a software program method expressed within the kind of an Entity dating (ER) diagram plus a knowledge stream Diagram (DFD). First, the casual and common FP counting principles are translated into rigorous ideas expressing houses of the ER-DFD. Then, the rigorous principles are translated into Prolog. The measures given by way of the procedure on a few case reviews are in response to these of human specialists.
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Extra resources for A System for Measuring Function Points from an ER-DFD Specification
Boeing had only ten weeks to nail down the engineering details of the eight systems before it would have to present the entire vehicle design during a preliminary design review. That design review took place on 28 and 29 January 1970 at MSFC, involving roughly 120 personnel from the Center in Huntsville, as well as Boeing engineers and managers and those from Boeing's primary subcontractor, General Motors, plus others involved directly or indirectly with the LRV program. Astronauts John Young, Charles Duke (both of whom would fly on Apollo 16) and Gerald Carr were also present to review the design and offer their essential input.
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Speed control of the motors was the job of Bruce Velasco and was achieved using pulse-width modulation from the movement of the hand controller. Within each traction drive was a magnetic reed switch that activated nine times during each wheel's revolution to determine speed, odometer and navigation readings. The traction drive was fitted with a mechanical brake that was activated via a cable connected to a linkage in the hand controller. Moving the hand controller rearward cut power to the drive and simultaneously activated the mechanical brake.