Ensuring high quality is easy when all you have to do is assemble one small product at a high volume. Maintaining quality gets more difficult as the number of parts increases, the number of variants grows, and the amount of manual tasks expands. That’s why manufacturing managers implement lean concepts, such as poka-yoke and standard work. And, that’s why they produce detailed work instructions with text and images. The problem then becomes how to ensure that assemblers actually follow those instructions. Digital work instruction software—like Job Element Monitor (JEM) from eFlex Systems—solves that problem. JEM does more than provide paperless work instructions; it’s a tool for enforcing an assembly process.