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  • Structure and Content Guide:
    • This part of the guide provides reference material on the technical design of glossary-ref
      Gloss
      tSNOMED
      CT
      . These design features provide the foundation for the services described in subsequent parts of the guide.
    • The design features include: glossary-ref
      Gloss
      tSNOMED
      CT
      components
      ( glossary-ref
      Gloss
      tconcepts
      , glossary-ref
      Gloss
      tdescription
      and glossary-ref
      Gloss
      trelationships
      ), extensibility mechanisms ( glossary-ref
      Gloss
      treference
      sets
      ), content glossary-ref
      Gloss
      textensions
      and glossary-ref
      Gloss
      texpressions
      that are used to represent information within a electronic record.
  • Release File Specifications:
    • This part of the guide includes detail glossary-ref
      Gloss
      tDescriptions
      of the files used to distribute glossary-ref
      Gloss
      tSNOMED
      CT
      content to licensees;
    • The specification are an important source of technical reference for those developing and maintaining applications that provide access to glossary-ref
      Gloss
      tSNOMED
      CT
      content.
  • Editorial Guide:
    • This part of the guide describes the ways in which technical design of glossary-ref
      Gloss
      tSNOMED
      CT
      is populated with content. The glossary-ref
      Gloss
      tConcept
      Model
      specifies the main hierarchies in which glossary-ref
      Gloss
      tconcepts
      are arranged and the types of the glossary-ref
      Gloss
      trelationships
      that are permitted between them.
    • This glossary-ref
      Gloss
      tConcept
      Model
      is directly relevant to implementation because it determines the types of clinical ideas that can be expressed using glossary-ref
      Gloss
      tSNOMED
      CT
      and the ways in which these ideas can be refined to represent more detailed information.
  • Terminology Services Guide :
    • This part of the guide describes the types of services required to access and make use of glossary-ref
      Gloss
      tSNOMED
      CT
      . It also provides practical advice on effective ways to deliver these services based on practice experience.
    • These services include: importing distribution files, determining the status and properties of selected components, searching for glossary-ref
      Gloss
      tterms
      , navigating hierarchies, testing and using glossary-ref
      Gloss
      trelationships
      between glossary-ref
      Gloss
      tconcepts
      , working with references sets to determine glossary-ref
      Gloss
      tlanguage
      acceptability, membership of glossary-ref
      Gloss
      tvalue
      sets
      , glossary-ref
      Gloss
      tmaps
      to other classification and additional glossary-ref
      Gloss
      tannotations
      and metadata.
  • Record Services Guide:
    • This part of the guide describes the types of services required to use glossary-ref
      Gloss
      tSNOMED
      CT
      , to represent instances of clinical information in glossary-ref
      Gloss
      telectronic
      health
      records
      , knowledge resources, decision support algorithms and data retrieval specifications.
    • These services include, entry of glossary-ref
      Gloss
      texpressions
      (including
      Glossary ref
      postcoordinated
      Glossary ref
      Gloss
      Spacetrue
      tpostcoordinated
      Gloss
      trefinements
      ), storage of glossary-ref
      Gloss
      texpressions
      , communication and selective retrieval of information that uses glossary-ref
      Gloss
      tSNOMED
      CT
      expressions
      to represent clinical ideas.
    • As part of the consideration of storage, communication and retrieval, this part of the guide also discusses the integration of the terminology with a well-designed information model. It is now widely recognized that this is crucial element in design and development of a glossary-ref
      Gloss
      tSNOMED
      CT
      enabled
      application
      . glossary-ref
    • Gloss
      tRecord
      services
      are dependent on glossary-ref
      Gloss
      tTerminology
      services
      and these two sets of services may be tightly integrated. Alternatively, an application that delivers glossary-ref
      Gloss
      trecord
      services
      may use a third party glossary-ref
      Gloss
      tterminology
      server
      to reduce the required development.
  • Change Management Guide:
    • This part of the guide addresses requirements that arise from changes to the content, structure and use of glossary-ref
      Gloss
      tSNOMED
      CT
      .
    • The first significant change management challenge relates to glossary-ref
      Gloss
      tmigration
      from other coding schemes or from a less structured electronic record system. Decisions must be made about retaining or converting records, queries and protocols originally created using a terminology other than glossary-ref
      Gloss
      tSNOMED
      CT
      .
    • Each release of glossary-ref
      Gloss
      tSNOMED
      CT
      introduces some changes to content. From time to time there will also be changes designed to increase the expressivity of the glossary-ref
      Gloss
      tConcept
      Model
      . Occasionally there may also be additional technical artifacts or specification developed to meet emerging requirements.
    • As systems evolve and as the content and structure of glossary-ref
      Gloss
      tSNOMED
      CT
      are enhanced there is a continuing requirement to address to manage changes smoothly and without loss of information or functionality.
  • Extension Services Guide:
    • This part of the guide describes additional services which some advanced users or implementers may require to allow them to create or maintain glossary-ref
      Gloss
      tExtensions
      for use in a particular country, organization or specialty.
    • The most common of these requirements will be to support the creation and maintenance of specialized glossary-ref
      Gloss
      tReference
      sets
      . Uses for glossary-ref
      Gloss
      tReference
      Sets
      include representation of glossary-ref
      Gloss
      tvalue
      sets
      , marking glossary-ref
      Gloss
      tdescriptions
      to indicate acceptability of glossary-ref
      Gloss
      tterms
      in a specific glossary-ref
      Gloss
      tlanguage
      or specialty, alternative hierarachies, glossary-ref
      Gloss
      tcross
      mapping
      to classifications and glossary-ref
      Gloss
      tannotations
      .