Identifying the Central Entity. Although the satisfaction of the UCL?s end users is vital, inventory management has the
administrative point of view. The reason for this priority rating is simple: state auditors target the Lab?s considerable and costly inventory to ensure accountability to the state?s taxpayers. Failure to track items properly may have serious consequences and, therefore, ITEM becomes the UCL?s central entity.
Identifying each module and its components. It is important to ?connect? the components by using share entities. For example, although USER is classified as belonging to the Lab management module and
classified as belonging to the inventory Management module, the USER and ITEM entities interface with both. For example, the USER is written into the LOG in the Lab Management module. USER also features prominently in the inventory Management module?s withdrawal of supplies and in the check-out-in processes.
Identifying each module transaction requirement.