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Radiology: A Communications ViewDavid C. Simen, Ph.D.Andrew B. Sherman, Ph.D.Stephen A. Edelstein, Ph.D.ATT in this paper we present only the dfd's. The next section presents views of the radiology data flow. Section 3 uses this flow to generate high-level requirements for a Radiology Operations System, which incorporates a Picture Archival and Communication System (PACS). Section 4 concludes the paper.Modeling radiology information flowFigure 1 presents a generic high level view of the radiology department. This diagram includes both data flows within the department and those forming the department's interfaces with external entities. This diagram provides a convenient framework for design, allowing the engineer to address questions such as what should be automated, how large are the relevant data stores, how heavy is the traffic; and so on.Using Figure 1 as a model for design ignores the significance of the traffic to and from external entities. The importance of this information flow suggests a broader approach, which is illustrated in Figure 2, in which Figure 1 is represented by the large circle labeled "Radiology Department". New "process bubbles" have been added to extend the scope of the diagram, so that some formerly external entities are now included in bubbles in the expanded diagram. To simplify Figure 2, generic groupings of data flows in Figure 1 have been depicted as single flows. |
