cs427-19

cs427-19 - Dataflow Diagrams 1 Modeling notations A...

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1 Dataflow Diagrams
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CS427 19-2 Modeling notations A graphical modeling notation focuses on  one aspect of a system Several models are needed to give a  complete picture Models must work together No set of modeling notations is perfect
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CS427 19-3 UML Models Use case diagrams and use cases Class diagrams Sequence diagram (event trace) Object diagram Package diagram Deployment diagrams State machine diagram Activity diagram Communication diagram Component diagrams Interaction overview diagrams Timing diagrams
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CS427 19-4 Structured Analysis Models Process Data-flow diagram Process specification Data Entity-Relationship Diagrams Data dictionary Control Control flow diagram State-transition diagram
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CS427 19-5 Elements of Dataflow Diagram Boxes (bubbles) Process - information transform External entity – source/sink Data store Line Data item - Flow of information
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CS427 19-6 Health Claims Processing R1)  Receives health claims and  supporting documents via many sources:  electronically, fax, on paper. R2)  Scanned paper and fax processed by  OCR.  Documents first subject to form  dropout, deskewing, despeckling. R3)  All images are logged to optical disk.
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CS427 19-7 R4)  Fields with low confidence levels are  repaired by hand.  Certain types of claims 
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cs427-19 - Dataflow Diagrams 1 Modeling notations A...

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