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Book Overview & Buying
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Table Of Contents
The Data Warehouse Toolkit - Third Edition
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In addition to financial and clinical data, healthcare organizations are also keenly interested in more operationally oriented metrics, such as utilization and availability of their assets, whether referring to patient beds or surgical operating theatres. In Chapter 4, we discussed product inventory data as transaction events as well as periodic snapshots. Facility or equipment inventories in a healthcare organization can be handled similarly.
For example, you can envision a bed utilization periodic snapshot with every bed’s status at regularly recurring points in time, perhaps at midnight, the start of every shift, or even more frequently throughout the day. In addition to a snapshot date and potentially time-of-day, this factless fact table would include foreign keys to identify the patient, attending physician, and perhaps an assigned nurse on duty.
Conversely, you can imagine treating the bed inventory data as a transaction fact table...
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