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Introduction

This document is a section of the LexEVS 5.x Installation Guide.

Overview of LexEVS Services

The LexEVS package set represents a compressive set of software and services to load, publish, and access vocabulary (and do so in a variety of web-enabled and grid environments.) Cancer Centers can use the LexEVS package set to install NCI Thesaurus and NCI Metathesaurus content queryable via a rich application programming interface (API). LexEVS services can be used in numerous applications wherever vocabulary content is needed.

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• Vocabulary service providers. Describes organizations currently supporting externalized API-level interfaces to vocabulary content for the caBIG® community.
• Vocabulary integrators. Describes organizations within the caBIG® community that desire to integrate new vocabulary content to be served to the caBIG® community.
• Vocabulary users. Describes the caBIG® community interested in utilizing vocabulary services within the context of other caBIG® projects.

LexEVS

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Components (

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Overview)

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1. Service Management consists of programs to load, index, publish, and manage vocabulary content for the vocabulary server.

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1. Application Programming Interface (API) is comprised of methods to support Lexical Operations, Graph Operations, and History Operations.

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1. Documentation consists of detailed JavaDocs and Programmers Guide.

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1. Examples are provided as sample source code for common vocabulary queries.

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1. Test Suite is provided to validate the LexEVS installation.

The following graphic shows LexEVS service components:

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Figure 1 - LexEVS Service Components

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• Service Metadata which comprises the Metadata coding scheme and Licensing.
• Query Service which comprises Lexical Set Operations, Graph Operations, and History.
• Service Manager which comprises Loaders and Indexers.
• Extensions which comprises Plug-ins.

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LexEVS components (

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Detailed)

The LexEVS installation includes the following components: *

• Service Manager or Administrative Programs for managing LexEVS server including Loaders, Indexers and Service Metadata Queries.
  • ActivateScheme
  • ClearOrphanedResources
  • CodingSchemeSelectionMenu
  • DeactivateScheme
  • ExportLgXML
  • ExportOBO
  • ExportOWL
  • ListExtensions
  • ListSchemes
  • LoadFMA
  • LoadHL7RIM
  • LoadLgXML
  • LoadMetadata
  • LoadNCIHistory
  • LoadNCIMeta
  • LoadNCIThesOWL
  • LoadOBO
  • LoadOWL
  • LoadRadLex
  • LoadUMLSDatabase
  • LoadUMLSFiles
  • LoadUMLSHistory
  • LoadUMLSSemnet
  • RebuildIndex
  • RemoveIndex
  • RemoveMetadata
  • RemoveScheme
  • TagScheme
  • TransferScheme *
• Query Service including Program Examples for common vocabulary functions using sample vocabulary and CodedNodeSet functions
  • **Lexical Set Operations
    • FindCodesForDescription
    • SoundsLike
    • Union
    • Intersection
    • Difference **
  • Graph Operations
    • FindPropsAndAssocForCode
    • FindRelatedCodes
    • FindTreeForCodeAndAssoc
• LexEVS Automated Verification Test Suite
• LexEVS Runtime jar (combined archive)
• LexEVS Runtime components (combined archive with 3rd party jars outside of archive)
• LexEVS Uninstaller
• LexEVS License Terms and Conditions
• Configuration files to enable you to customize your installation to meet your specific database, server, and other network needs
  • llbconfig.props
• Documentation
  • JavaDocs
  • Links to:
    • LexEVS Programmer's Guide
    • LexEVS Installation Guide

Deployment

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Alternatives

The LexEVS local Runtime package has flexible database deployment alternatives depending on the underlying dbms. For dbms's like MySQL and PostGres the user can deploy terminologies contained in a single database or in multiple databases. Single database configurations allow the user to manage databases more effectively. Multiple data base configurations provide a little more transparency to the underlying terminology load. Some dbms's, like Oracle, require the single data base configuration.</html>