1 SAIC Phong Ngo Metadata Exchange amongst Registries 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 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.

3 SAIC Phong Ngo ISO/IEC informative Annex B n It is envisioned that organizations wishing to share information among themselves may want to establish an RA for that purpose n If two or more RAs believe that they should standardize certain data elements across their areas of interest, then: –negotiate to complement one another's registers with their already standardized data elements OR –establish another RA to register data elements that they want to share, but are not available or agreed upon

4 SAIC Phong Ngo Discussion Topics n Lessons Learned: 1Have you shared, i.e, RETRIEVED and/or PROVIDED, metadata within your own organization? 2How do you promote the use of metadata within your organizations? What ? How ? 3Have you shared metadata with other organizations ? What ? How ? 4What metadata attributes are used/shared the most ? 5What mechanism/interfaces do you use to share metadata ? n Looking into the Future: 6What SHOULD we share ? 7How SHOULD we share ?

5 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 Organization Responsible Organization Registration Authority Roles and Responsibilities

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

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

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

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

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

11 SAIC Phong Ngo Recorded Certified Standardized Retired Incomplete Registration Status