1 SAIC Phong Ngo Considerations for Establishing and Managing A Registry for Metadata Phong Ngo (NCITS/L8 - SAIC) April 15-17, 1998 Metadata Registry Workshop Washington, D.C., U.S.A. Metadata Registry Workshop Washington, D.C., U.S.A.

2 SAIC Phong Ngo AgendaAgenda 4 Introduction: Why register ? n Scope of ISO/IEC n Registration Principles n Who’s doing what to whom ? n What to register ? n Registry key issues (resolved ?) n First step first... n Info you can use

3 SAIC Phong Ngo Our Blessings... Our Problems n Information Revolution: Internet and other global computing facilities. n Interconnection is somewhat standardized and enabled. n Semantic content and the representation of Data Elements are NOT usually standardized thus NOT fully shareable. n Data cannot be shared if they are NOT registered and NOT available.

4 SAIC Phong Ngo Contributions of ANSI and IEC/ISO n ISO/IEC Specification, Identification and Registration of Data Elements n ANSI X3.285 (to be fast tracked into ISO) - Specification, Identification and Registration of other objects such as: Object Classes, Data Elements Concepts, Properties, Data Value Domains.

5 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? 4 Scope of ISO/IEC n Registration Principles n Who’s doing what to whom ? n What to register ? n Registry key issues (resolved ?) n First step first... n Info you can use

6 SAIC Phong Ngo Scope of ISO/IEC This Part of ISO/IEC n defines the type of information that shall be specified, the conditions that shall be met, and the procedure(s) that shall be followed. n does NOT specify the registry's system design, file organization techniques, storage media, programming languages, etc. to be used in its implementation. n may be extended to register other shared objects, such as object classes, data element concepts, and permissible data element values (domains).

7 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? n Scope of ISO/IEC n Registration Principles 4 Who’s doing what to whom ? n What to register ? n Registry key issues (resolved ?) n First step first... n Info you can use

8 SAIC Phong Ngo Metadata Registration Principles n Non exclusive registration: Every organization may be a Registration Authority. n Data sharing registration: Data may be shared intra- or inter-organizationally. n Economically enforced registration: Utility determines longevity and usefulness. n Flexible Registration: Metadata may be registered at different levels of quality.

9 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? n Scope of ISO/IEC n Registration Principles 4 Who’s doing what to whom ? n What to register ? n Registry key issues (resolved ?) n First step first... n Info you can use

10 SAIC Phong Ngo Who’s is doing what to whom? n n Registration Authority – –An organization authorized to register data elements (or other objects). n n Responsible Organization – –The organization Or unit within an organization that is responsible for the contents of the mandatory attributes by which the data element is specified. n n Submitting Organization – –The organization Or unit within an organization that has submitted the data element fro addition, change, or cancellation/withdrawal in the data element dictionary.

11 SAIC Phong Ngo Advise Notify n Specify DE Submit DE for registration Provide supplemental info Resolve conflict n process applications n assign IRDI values n maintain a Data Element Registry n Assign appropriate Registration Status n Notify SOs of its decisions n Consult Reconcile Clarify Arbitrate n semantics n name n domain Submitting Orgnaization Responsible Orgnaization Registration Authority Roles and Responsibilities

12 SAIC Phong Ngo Responsibilities of Submitting Organizations (SO) n n Provide the information specified in Annex A in the form required by the RA. n n Provide any additional information that may reasonably be required by the RA to enable it to perform its responsibilities. n n Ensure that when a data element has been registered, specification of the attribute values of the data element is not changed without first advising the RA.

13 SAIC Phong Ngo Responsibilities of Responsible Organizations (RO) n n At the RA's request, advise on the semantics, name, and permissible value of data elements submitted for registration. n n Notify the RA of any amendments to the data elements assigned to the RO. n n Decide, in case of confusion and/or conflict, on the attribute values of the assigned data elements.

14 SAIC Phong Ngo Responsibilities of Registration Authorities (RA) n n Receive and process applications for the registration of data elements, assign IRDI values, and maintain a Data Element Register in accordance with the following provisions. n n Consult the appropriate ROs when requests affect the mandatory attributes of the data elements being registered. n n Handle all aspects of the registration process in accordance with good business practice and, in particular, take all reasonable precautions to safeguard the Register. Specifically, the responsibilities of an RA are as follows: n n Receive applications for the registration of data elements from its SOs. n n Review and facilitate the progression of the applications through the registration cycle. n n Assign appropriate Registration Status. n n Notify SOs of its decisions according to the procedure of this standard.

15 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? n Scope of ISO/IEC n Registration Principles n Who’s doing what to whom ? 4 What to register ? n Registry key issues (resolved ?) n First step first... n Info you can use

16 SAIC Phong Ngo Table A-1: Basic Attributes of Data Elements for Data Element Registers (RE: Part 3 of ISO/IEC 11179)

17 SAIC Phong Ngo Table A-1: Basic Attributes of Data Elements for Data Element Registers (RE: Part 3 of ISO/IEC 11179)

18 SAIC Phong Ngo Table A-1: Basic Attributes of Data Elements for Data Element Registers (RE: Part 3 of ISO/IEC 11179)

19 SAIC Phong Ngo Table A-1: Basic Attributes of Data Elements for Data Element Registers (RE: Part 3 of ISO/IEC 11179)

20 SAIC Phong Ngo Table A-2: Administrative Attributes for Data Element Registers

21 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? n Scope of ISO/IEC n Registration Principles n Who’s doing what to whom ? n What to register ? 4 Registry key issues (resolved ?) n First step first... n Info you can use

22 SAIC Phong Ngo Registration Authority Identifier (RAI) * Data Identifier (DI) Version Identifier (VI) ** Optional Structure of International Registration Data Identifier (IRDI) * Same as ISO 6523 Notes: IRDI is an internationally unique Identifier International Code Desiginator (ICD) Organization Identifier Organization Part Identifier (OPI) OPI Source (OPIS) **

23 SAIC Phong Ngo n Each data element shall be unique within a registration authority n The combination of identifier, registration authority (and version) shall make a unique identification for a data element n To be assigned an identifier, a data element shall satisfy all conditions specified in all parts of the standard Rules for Identification of Data Elements

24 SAIC Phong Ngo Recorded Certified Standardized Retired Incomplete Registration Status

25 SAIC Phong Ngo Registration Status

26 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? n Scope of ISO/IEC n Registration Principles n Who’s doing what to whom ? n What to register ? n Registry key issues (resolved ?) 4 First step first... n Info you can use

27 SAIC Phong Ngo So You want to become a Registration Authority ?

28 SAIC Phong Ngo n Secure an RA Identifier (RAI). n Prescribe, amend, and interpret the procedures n Determine any additional conditions specifically required by its domain of registration. n Specify the format for each attribute listed in Annex A of ISO/IEC and for any additional attributes. n Determine the format and media in which applications shall be submitted. Steps to establish a Registration Authority (RA)

29 SAIC Phong Ngo AgendaAgenda n Introduction: Why register ? n Scope of ISO/IEC n Registration Principles n Who’s doing what to whom ? n What to register ? n Registry key issues (resolved ?) n First step first... 4 Info you can use

30 SAIC Phong Ngo Are these standards being used ? n Reference Implementation: –US EPA’s Environmental Data Registry (EDR): Presentation follows. –Australian Institute of Health and Welfare’s National Health Information Knowledgebase (NIHK): –In Progress: »Learning Object Metadata Group (LMOG): »Census Bureau’s data registry. n Adoption: –ISO TC 204, Transportation, resolved to use ISO/IEC as the standard for data dictionories. –The United Nations’s Basic Semantic Repository Project utilizes much of ISO/IEC as its foundation.

31 SAIC Phong Ngo For Your Information n NCITS/L8 is Committee for Data Representation under ANSI. It is also the US Technical Advisory Group to ISO/IEC/JTC1/SC 14. n Phone: Fax: n n FTP for NCITS/L8 and SC14 is scdt- sunsrv1.nscl.nist.gov Directory X3L8. User id is anonymous. n NCITS/L8 Web n SC14 and NCITS/L8 co-sponsored a JTC1 Joint Workshop on the Registration of Metadata, in San Francisco, USA, July Please check out our Web.