TABLE OF CONTENTS When this text refers to a tracking system, it means either a computerized maintenance management system (CMMS) with a stand alone MRO inventory system or an enterprise asset management (EAM) with an integrated corporate MRO inventory system. A typical information and transaction flow for an EAM MRO control system is shown in Figure 1-13.
The core of the program is the store's master data file. The master data file stores much of the spare parts nomenclature. As mentioned previously, it will contain the identifying part number, description, and much of the data concerning stocking levels reorder points and reorder quantities. Five principal transactions occur in the system. These are: part reservations, part issues, purchase order information, receipts, and finally, the transactional detail posting to accounting.
The maintenance module, especially the planning and scheduling component, generates spare part demands from work orders. These orders appear in the system as stock issue requests, which are basically reservations for parts. There can be other part request outside the work order system, such as contractor demands, or project demands. Based on these requests, parts are issued. These show in the system as stock issues.
The information concerning the stock issues is fed back to the maintenance module, where the spare part charges appear against a specific work order number. There can be additional stock issue requests traveling to the maintenance module that do not originate during planning and scheduling. These are...
