Case study Descriptions Cardiovascular stress testing uses exercise with electrocardiography (ECG) and blood pressure monitoring. This form of stress testing is usually performed with exercise protocols using either a treadmill or bicycle. With exercise stress testing, we can determine a patient’s functional capacity, assess the probability and extent of coronary artery disease (CAD) as well as assess risks, prognosis and effects of therapy. (Acampa W, Assante R, Zampella E. The role of treadmill exercise testing in women. J Nuel Cardiol. 2016 Oct: 23(5):991-996.)
Human Factors Engineering
DESIGN THE CONTROL/DISPLA ‘ FOR A PROCESS/COMPLEX SYSTEM
Design a control and display system for a multi-step process with several sensors, both as a physical
control/display system (switches, buttons, track balls, pedals, gages, display units, etc.) and as a
computer/software interface (menu driven). Provide operating instructions for both designs.
1. Control and monitoring unit for Cardio-stress evaluation.
Begin by defining the process and the various operations to be monitored and controlled. Select appropriate
control interfaces to match with the functionality of the task. Consider engineering requirements, placement
and spacing, color, labeling, shape, size and tactile features (direction of movement, force required),
aesthetics, ergonomics considerations (physiological and cognitive), and appropriate codes (safety
precautions/lock-out concerns). The layout of the unit is to be sketched to scale indicating dimensions for
spacing and size of components. Either provide a second sketch with call-out boxes for describing the
interface components and its corresponding operation or tabulate this information.
rour report inciudes a narrative or tne processes (steps); descrip on reating tne runcuonanty and
operations to the selected control and/or display interfaces; discuss rationale for selecting the components
and various layout considerations; provide schematic of layout; create operating instructions.
Report format: Introduction, Body of report – (Discuss the functionality and operation, diagram of the panel
and a good description of how it works, and the ergonomics/safety related to the panel).
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