We start with a focused evaluation: what needs to be measured or stimulated, on which body area, and under what movement load? From this, we derive textile concepts—substrates, conductive structures, contact zones, and mechanical decoupling. In-house prototyping delivers early data that feeds into test plans and design decisions. A design freeze creates clarity for manufacturing and regulatory approval. From day one, we align documentation and sourcing to the required standards, including a defined target price. Key points: Solution evaluation · In-house prototyping · Materials & sourcing · Documentation for certification · Alignment of interfaces to the hardware (electronics)