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The LexBIGService provides central entry points for programmatic access to system features and data. In the following figure, LexBIGService provides Methods retrieving other services, Methods retrieving discrete node sets and graphs from coding schemes, and Methods retrieving service and coding sheme meta data.
LexEVS Services and Components
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Load extensions are responsible for the validation and import of content to the LexEVS repository. Vocabularies may be imported from a variety of formats including LexGrid canonical XML, NCI Thesaurus (OWL), and NCI MetaThesaurus (UMLS RRF). For details on LexEVS loaders and the Loader Framework, see the Loader Guide.
The following are the components of interest:
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A terminology service with loaded content will look something like this:
Overview
The top bar contains Administrative function drop down menus. The top right side bar with buttons has first query selection buttons and next administration functions. Just under these menus is a table of the current terminology set for this service. The left and right lower sections provide function for manipulating code sets and graphs. The lower left section displays the current set or graph sets on which Boolean logic, restriction and resolution functions can be performed. Code set and graph results can be restricted and tailored to the users needs on the lower right.
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If a Code Set is selected in the lower left, then the lower right section will look like this:
In the lower right section, there are two halves - the top half and the bottom half. The top half is used to apply restrictions. The bottom half provides query options and resolution.
- Add - This button introduces a new restriction to the Coded Node Set. Clicking it will bring up the following dialog box for creating restrictions:
The top drop down list indicates the type of restriction to add. The rest of the dialog box will change depending on the type of restriction selected. All required parameters for the selected restriction type will be presented.
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If you select a Coded Node Graph in the lower left section of the LexEVS GUI, the lower right section will look like this:
Again, there are two halves to the lower right section. The top half allows restrictions to be applied to the selected Code Graph, and it works the same as it does for a Coded Node Set. Please see the section above on applying restrictions to a Coded Node Set.
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Clicking on the Resolve buttons for either a Coded Node Set or a Coded Node Graph will bring up the Result Browser window:
The left side shows a list of all the concept codes returned. When a concept code is selected on the left, the upper right will show a full description of the selected code. The lower right will show a graph view of the neighboring concepts.
When a Coded Node Graph is resolved, the result viewing window will look like this (this is the same Code System as above):
The left side still has a list of all of the concepts in the graph. The upper right will give a description of the selected concept. The lower right shows the entire graph.
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