To understand why Sema is a target for piracy, one must appreciate its utility. Sema is not merely a drawing tool; it is a comprehensive environment for the design of control cabinets and wire harnesses. Version 11.5 represented a significant iteration in the software's evolution, offering features that streamline the transition from schematic diagrams to physical layouts. Engineers use it to calculate wire lengths, optimize routing paths, and generate accurate bill of materials (BOMs).