By Alexander Scarlat MD
Beginning with an obtainable primer, this booklet introduces the reader to the instruments and technique of established platforms research in addition to the nuances of the drugs domain. The first a part of the publication proceeds with a top-down decomposition alongside major paths:
- Data in Motion - Workflows: Context and information stream Diagrams, approaches, actions
- Data at Rest - Databases: Conceptual and Logical types, Entity-relationship-diagrams
Structured structures research method and instruments are utilized to:
- Electronic Prescription
- Computerized medical professional Order Entry
- Drug dispensation
- Medication management
- Clinical selection Support
The ebook completes a accomplished view of the EHR/EMR with devoted chapters on:
- User Interface concerns (Input)
- Reporting necessities (Output)
- Standards and Vocabularies for significant Use (Interoperability)
Assuming the reader has no earlier scientific and/or informatics wisdom, the writer uses easily obtainable language and transparent motives. With over 170 figures, a hundred assessment questions and solutions - the booklet is a brilliant significant other to Healthcare IT execs in addition to medical informatics scholars
Read or Download Electronic Health Record: A Systems Analysis of the Medications Domain PDF
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Extra resources for Electronic Health Record: A Systems Analysis of the Medications Domain
Since processes are asynchronous, there is no guarantee the correct or expected sequence will be followed by the system. 4, a dose may be selected before a drug was chosen, a situation that does not make much sense. There are no components on a DFD to describe conditional logic. A DFD has no condition-action rules, such as “If condition X is fulfilled then act according to Y. ” The time-dependent, sequential nature of a process and the conditional logic a process has to obey are defined with flowcharts, preand postconditions, and sometimes control processes: bubbles that control the behavior of other bubbles.
The techniques mentioned for balancing the models require little intelligence or creativity. Still, balancing the models is a necessity for the modeling deliverables to be considered complete, correct, and consistent. It is a tedious, timeconsuming activity and thus well suited for a machine: a CASE tool. Summary This chapter introduced a methodology and a set of tools. The methodology— structured system analysis or SSA—recommends focusing separately and in parallel on the data and functions aspects of a system.
The following are some recommendations to consider when drafting a DFD (6,7): Avoid an overly complex DFD. A DFD should fit nicely into one page. As a rule of thumb, if there are more than a half dozen processes on a DFD, it usually means either the partitioning of the parent, higher-level DFD is incorrect or the current DFD needs a different decomposition approach. The process of decomposing, partitioning, or exploding the system using DFDs is also called leveling. Leveling uses a series of increasingly (top-down) or decreasingly (bottom-up) detailed DFDs to represent a system from a functional perspective.