TestWorks Group were asked to develop a data acquisition solution for brake efficiency testing, replacing a system using a traditional chart recorder. The customer required the output to be as similar in appearance as possible to the original, hardware-based system. The solution was based on National Instruments CompactDAQ hardware and initially provides four channels at 50K samples/second (± 60V), and is expandable to 32 channels. The solution was developed in LabVIEW and includes options to save test setups, channel combinations and test data to MS Excel etc.