Software Quality Assurance Q. Is software that is embedded into data-acquisition systems subject to the requirements of NP 19-1, “Software Requirements”?
First, let’s define “data-acquisition systems”. Data-acquisition systems (DAS) consist of systems that use sensors (e.g., thermocouples, linearly variable differential transducers, position detectors, etc.) to detect varying measurables, producing recorded, human-readable outputs for those measurables. DAS do not include computer systems that perform further analysis on those measurables. In general, the requirements of NP 19-1 do not apply to DAS, since operability and accuracy of data-acquisition systems, including any software that operates within them, is assured by the calibration of those systems.