Steer-by-wire removes the mechanical column between the wheel and the road. The driver's intent becomes a signal, and a safety-critical actuator turns that signal back into feel. Validating that loop (proving it behaves, fails safe, and earns its ASIL-D rating) is one of the hardest jobs in chassis engineering.

This series follows a single program from the first data off the bench to the signed safety case, through the engineer who owns its validation. Each chapter is a stage of that program, and each one foregrounds the same quiet adversary: the data tax. The uncounted work of finding, cleaning, aligning, correlating, and trusting engineering data before any real analysis can begin.

The engineer validates the system. The data and analysis layer (MOVEcenter) carries the tax. Figures throughout are illustrative, built to mirror real campaigns; the shape of the problems is real.