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h2. Introduction
This guide describes environment configuration principles and practices from the perspective of an existing LexEVS installation. The information applies to LexEVS v.6.0

h2. Overview

h3. Levels of Administrative Options
_LexEVS provides three levels of administration options for the user:_
* _The LexEVS GUI_: a user interface that performs most administrative functions with many of the conveniences associated with GUI level administration such as automated directory browsing for load sources.
* _LexEVS Administration Scripts_: a collection of shell scripts that allow users to do command line load and administration of vocabularies.
* _LexEVS Manager API Interfaces_: an api to provide the user options for end user interface development of management and administration capabilities.

h3. Advanced Administration Topics
_LexEVS has advanced administration options for vocabulary administration_
* _Applying a Manifest:_ Manifests are schema compliant XML documents loaded at load time or post load to revise vocabulary metadata.
* _Load Time Preferences:_  Preferences for loading elements of sources such as OWL can be done at load time.
* _Applying Revisions to a Coding Scheme:_ Coding Schemes can be extensively revised by loading a revision object in LexGrid XML format
* _Post Processing Options:_ Post load processing algorithms allow users to access and apply information about the source to coding scheme meta-data that may only be available post load.
* _Coding Scheme Supplements:_ Supplements to a given coding scheme can be loaded as full coding schemes.
* _Authoring Coding Schemes and their child elements:_ A complete authoring API is featured in the CTS2 interface.

h2. LexEVS 6.0 Administration Guide Sections
Below is a listing of the sections of the LexEVS Administration Guide. Please either choose the link below to the section you would like to review or see the Navigation box

* [Administering LexEVS with the LexEVS GUI|1 - LexEVS 6.0 Administration Using the GUI Tool]
This section describes administration using the GUI tool.

* [Administering LexEVS with the Command Line |2 - Administering LexEVS 6.0 with the Command Line]
This section describes administration using the command line.

* [LexEVS Management and Administration API |3 - LexEVS 6.0 Management and Administration API]
This section describes management and administration API. 

* [Advanced Vocabulary Administration Issues|4 - Advanced LexEVS 6.0 Vocabulary Administration]
This section describes advanced vocabulary administration issues.

h2. Related Documents

Basic LexEVS installation and configuration administration is handled in the
[LexEVS Installation Guide|LexEVS 6.0 Installation Guide]


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