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Future of MDR - ISO/IEC 11179 Metadata Registries (MDR) Larry Fitzwater, SC 32 WG 2 Convener Computer Scientist U.S. Environmental Protection Agency May 17, 2004 Presentasjon hentet fra leder av arbeidsgruppe 2 i ISO JTC1 SC32 som utvikler standarden
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2 MDR Family of Standards ISO/IEC 11179 ISO/IEC 20943 ISO/IEC 20944 Designated by ISO as freely available without cost.
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3 ISO/IEC 11179, Parts 1 - 6 Part 1: Framework Part 2: Classification for Administered Items Part 3: Registry Metamodel and Basic Attributes Part 4: Formulation of Data Definitions Part 5: Naming and Identification Principles Part 6: Registration
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4 Part 1: Framework Facilitates acquisition and registration of data Expedites access to and use of data Simplifies data manipulation based on characteristics described by metadata Enables development of a data representation metamodel for CASE tools and repositories Facilitates electronic data interchange and data sharing Includes definition of terms
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5 Part 2: Classification for Administered Items Deriving and formulating abstract and application administered items Ensuring appropriate attribute and attribute-value inheritance Reducing ambiguous information Recognizing relationships among data element concepts, data elements and other administered items
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6 Part 3: Registry Metamodel and Basic Attributes Specifies a metamodel and attributes to describe data items (e.g., name, definition, permissible values, size, representation, datatype) Outlines other attributes that will provide information for data management Provides for consistency in recording metadata information Encourages comparison of data across systems Facilitates information exchange
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7 Part 4: Formulation of Data Definitions Define the meaning of data items Ensure consistency and quality Facilitate data shareability Contains both rules and guidelines
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8 Part 5: Naming and Identification Principles Defines the identifying attributes Describes the relationship of the attributes to each other Includes principles by which naming conventions can be developed and documented Describes an example naming convention
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9 Part 6: Registration Describes the procedure by which data items are registered and assigned an internationally unique identifier Outlines steps in the assignment of Registration Statuses Reviews the role of a Registration Authority
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10 Related Standards Efforts ISO/IEC 20943 - Information Technology – Achieving Metadata Registry Content Consistency Part 1: Data Elements, guidance and recommendations on the registration of data elements within a metadata registry. Part 2: XML Structured Data, guidance and recommendations on the registration of XML features within a metadata registry. Part 3: Value Domains, guidance and recommendations on the registration of value domains within a metadata registry. Part 4: Overview
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11 Related Standards Efforts ISO/IEC 20944 - Information Technology – Metadata Registry Interoperability and Bindings Conformance: Common conformance wording Attribute Mapping: The mapping of 11179-3 attribute names to navigable identifiers Coding Bindings Application Programming Interface (API) Bindings Protocol Bindings (continued)
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12 Past - Version 1 Data element management Basic attributes of data elements ISO/IEC 11179 - Past PART 1PART 2 PART 3PART 4 PART 5PART 6
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13 Present - Version 2 Administered item management Registry metamodel ISO/IEC 11179 - Present PART 1 PART 2 PART 3 PART 4 PART 5PART 6
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14 Future - Version 3 Knowledge management Extensions for metamodel interoperability ISO/IEC 11179 - Future PART 3 PART 4 PART 5 PART 2 PART 6 PART 1
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15 Future Directions Part 2: Classification Knowledge organization systems Concept management Semantic Web
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16 Future Directions Part 4: Definitions Data quality Metadata quality (continued)
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17 Future Directions Part 5: Naming Context Designations (continued)
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18 Future Directions Part 1: Framework Part 3: Metamodel Part 6: Registration (continued)
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19 Future Issues Model interoperability Cultural adaptability XML registry interoperability Non-enumerated Conceptual Domains
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20 Larry Fitzwater U.S. EPA fitzwater.larry@epa.gov Takk for lånet av sides til
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