1 / 8

What Are Mappings?

What Are Mappings?. A set of Mappings is a precise statement of the equivalence between two data structures or class models. A set of Semantic Mappings is a precise statement of how a data structure conveys the information in a class model. Data structure = XML, RDBMS.

cassandra-hardin
Download Presentation

What Are Mappings?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. What Are Mappings? A set of Mappings is a precise statement of the equivalence between two data structures or class models A set of Semantic Mappings is a precise statement of how a data structure conveys the information in a class model Data structure = XML, RDBMS

  2. Types of Mapping S2S Structure 1 Structure 2 S2M ITS 1 ITS 2 Class Model 1 Class Model 2 M2M

  3. Mappings are the Only Basis for Interoperability • Before you write software to interface between two data structures or models, you must understand the equivalence between them. • That is the specification of the interface software (and the basis for testing it) • So write it down.

  4. What do Semantic Mappings Look Like? They say: This node (XPath, field) in the an instance of the data structure represents this feature (object, property, link) in an instance of the class model.

  5. Demo 1: Making V2-V3 Mappings See Notes page for this slide.

  6. Demo 2: Running a Translation Test See Notes page for this slide.

  7. The Use Case for V2-V3 Mapping V2 V3 XML Homebrew 1 V2 – V3 Mapping V3 ITS Mappings V3 RMIM System interfaces can use their own homebrew XML, and then inter-operate freely with both V2 and V3.

  8. Summary • Mappings are the essential basis for interoperability • They should be written down • You could do this with Excel • Or you can use a tool which: • Captures the models and structures you are mapping between (so makes mapping easy) • Validates the mappings • Generates and runs translations from the mappings • Does automated self-test of the translations and mappings • Download the tool from the HL7 Homebase:http://hl7projects.hl7.nscee.edu/ • Send feedback to robert.worden@charteris.com

More Related