In general, cell design guidelines are based on common sense and logic, easy access, error proofing, non-fatigue, and...

Cell design guidelines aim to create efficient, user-friendly environments that enhance productivity and reduce errors. The concept of built-in organization aligns perfectly with these objectives. Effective cell design incorporates organized layouts that minimize unnecessary movement, facilitate quick access to tools and materials, and ensure that the workflow is clear and logical. This organizational structure in the workspace promotes efficiency by having everything needed easily accessible and well-arranged, reducing the likelihood of errors and the potential for fatigue among workers.

Considering the other choices: the number of people on a work shift focuses more on staffing than on the physical design of the work environment. The location of the document retrieval system, while potentially relevant, doesn't encompass the broader design principles required for a well-organized workspace. Adequate storage space for inventory is important but is more of a logistical consideration rather than a guideline that embodies the fundamental principles of cell design itself. Thus, built-in organization is central to effective cell design.