1 / 62

Dianne M. Reeves, RN, MSN National Cancer Institute CBIIT Tommie G. Curtis, MS

Metadata Open Forum 2008 ISO/IEC/IEC 11179: Metadata Registries A Tutorial from the National Cancer Institute. Dianne M. Reeves, RN, MSN National Cancer Institute CBIIT Tommie G. Curtis, MS Science Applications International Corporation (SAIC). Metadata Open Forum 2008 - Goals.

prema
Download Presentation

Dianne M. Reeves, RN, MSN National Cancer Institute CBIIT Tommie G. Curtis, MS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Metadata Open Forum 2008ISO/IEC/IEC 11179: Metadata Registries A Tutorial from the National Cancer Institute Dianne M. Reeves, RN, MSN National Cancer Institute CBIIT Tommie G. Curtis, MS Science Applications International Corporation (SAIC)

  2. Metadata Open Forum 2008 -Goals • Explain the role of ISO/IESC 11179 in capturing structured metadata • Discuss the added value of binding vocabulary/terminology, to ISO/IEC administered items • Estimate the level of effort needed to collect and maintain metadata • Assess and justify metadata registration needs for an organization

  3. Metadata Open Forum 2008 –Activities • Review and discuss the ISO/IEC 11179 standard • Examine a registry implementation of ISO/IEC 11179 • Map source metadata to registry content • Utilize semantics to bind to metadata • Assess the value and role of an ISO/IEC 11179 registry in an organization

  4. Metadata Open Forum 2008 –ISO/IEC 11179 Metadata Registries What is the Standard? • Six-part standard defining various aspects of metadata development and metadata registry management • Common way of representing metadata • A “Grammar” for describing data • Descriptive (pattern for creating meaning) • Prescriptive (pre-existing rules for the pattern)

  5. Metadata Open Forum 2008 –ISO/IEC 11179 Information technology Standard • ISO/IEC 11179 Part 1: Framework • ISO/IEC 11179 Part 2: Classification • ISO/IEC 11179 Part 3: Registry metamodel and basic attributes • ISO/IEC 11179 Part 4: Formulation of data definitions • ISO/IEC 11179 Part 5: Naming and Identification Principles for Data Elements • ISO/IEC 11179 Part 6: Registration • Publicly Available from: http://metadata-standards.org/11179/

  6. Conceptual_Domain Data_Element_Concept +specifing +having Conceptual Domain 1..1 0..* 1..1 data_element_concept_conceptual_domain_relationship 1..1 +specified_by +represented_by Perception expression specification Representation +representing +providing_representation_to 0..* 0..* Value_Domain Data_Element Value Domain representation Data Element 0..* 1..1 +providing_representation_for +represented_with Metadata Open Forum 2008 –Basic ISO/IEC 11179 Metamodel Components Data Element Concept 1..1 0..* 1..1 1..1 0..* 0..* 0..* 1..1

  7. Data Element: A unit of data for which the definition, identification, representation, and permissible values are specified by means of a set of attributes. Data Element Concept: An idea that can be represented in the form of a data element, described independently of any particular representation. Conceptual Domain: A set of valid Value Meanings. Representation Class: A classification of data elements based upon the type of representational form. Value Domain: A set of attributes describing representational characteristics of instance data with or without enumerated permissible values. Value Meaning: A member of the set of finite allowed inventory of notions that can be categorized for a conceptual domain. Permissible Value: An expression of a Value Meaning expressed in a Value Domain. Metadata Open Forum 2008 –Terms and Definitions for ISO/IEC 11179 Data Element Representation Class Data Element Concept Conceptual Domain Value Domain Permissible Value Value Meaning

  8. Data Element Concept: An idea that can be represented in the form of a data element, described independently of any particular representation. - The suggested pattern for creating the meaning of a DEC is further described using Object Class and Property Object Class: The part of the DEC ‘pattern’ pertaining to the thing in the real world. A person, a gene, a vehicle. Property: The part of the DEC ‘pattern’ pertaining to an observable or recordable characteristic of the thing in the real world. These characteristics, or attributes, are those things that help to differentiate instances of one thing of the same type or kind, from another. For example characteristics of a person that differentiate one person from another: Hair color, Eye color, Height, Weight, BSA Metadata Open Forum 2008 –Terms and Definitions for ISO/IEC 11179 Data Element Concept Property Object Class Qualifiers Qualifiers

  9. Object Class Chemopreventative Agent Conceptual Domain Agent Valid Values Cyclooxygenase Inhibitor Doxercalciferol Eflornithine … Ursodiol Data Element Concept Chemopreventive Agent Name Value Domain CTEP Drug Names Property Name Representation Name Data Element Chemopreventive Agent Name Metadata Open Forum 2008 –ISO 11179 - caDSR Implementation Diagram

  10. Metadata Open Forum 2008 –NCI CBIIT Extensions • Mandatory Object Class and Property • NCI Compliance ensures that the parts of the semantics are clearly, unambiguously identified • Simplifies development of programs and interfaces that can reliably detect similar or different content (uses the ‘grammar’ to interpret metadata) • Value Meanings as Administered Items • Alternate names and definitions • Reference documents • Origins • Forms and parts of forms as administered items • Unique identifier • Versioning • Simplify creating and sharing Data Elements • Promote reuse of standards

  11. Metadata Open Forum 2008 –NCI CBIIT Extensions • Concepts as Administered Items • Provides links to external vocabularies and code systems • Minimal concept information extracted from external vocabulary systems to populate the Administered Item Record to simplify reuse of NCI standardized concepts • Preferred name, definition, concept identifier, source vocabulary identification • Concepts bound to Controlled Vocabulary • Binding registry semantics to immutable external vocabulary concepts • Provides access to extensive synonymy and semantics represented in ontologies, taxonomies and code systems where the concepts are more fully described • Extended use of Concepts: Property, Representation, Value Meanings, Value Domains, Conceptual Domain, etc. • Enhances programmatic interpretation of semantics • (*ISO/IEC 11179 Ed. 2 specifies concepts as optionally associated with Object Class)

  12. Metadata Open Forum 2008 –NCI CBIIT Extensions • Applied business rules to make the addition of semantics mandatory for Object Class, Property, Representation, Qualifiers, and Value Meanings • Include Preferred Question Text Next steps: • Forms as administered items • CSI as administered items

  13. Metadata Open Forum 2008 –NCI CBIIT Business Rules for Metadata Development and Maintenance • Metadata Development • Naming and Definitions • Semantic Assignment • Completeness Criteria • Ownership and Usage • Status Assignment • Metadata Maintenance • Updating/Modifying • Versioning • Status assignment

  14. Metadata Open Forum 2008 –NCI CBIIT Best Practices • Describe common processes • Improve quality and encourage reuse • Facilitate training and understanding • Documented in FAQs and documents • Encourage use of data standards

  15. Metadata Open Forum 2008 –Enterprise Vocabulary Services - Thesaurus • Controlled vocabulary resources for caCORE and the cancer research community • Vocabulary Products and Services • NCI Thesaurus • NCI Metathesaurus • External vocabularies • NCI Thesaurus - controlled vocabulary source for metadata • Has excellent coverage of cancer terminology • Expands based on needs for additional terminology • Based on concepts rather than terms • Each concept has a unique identifier or CUI with definitions and synonym

  16. Metadata Open Forum 2008 –Enterprise Vocabulary Services - Thesaurus Preferred Name Concept Code Relationships Definition Synonyms

  17. Metadata Open Forum 2008 –Curation: Manual Curation Use a suite of caDSR Tools: • CDE Browser to locate existing metadata • Curation tool to create metadata • Applies 11179 rules for well formed metadata • Administration tool to create classifications, classification scheme items

  18. Metadata Open Forum 2008 –ISO/IEC 11179 Implementation in NCI CBIIT- Browser

  19. Metadata Open Forum 2008 –ISO/IEC 11179 Implementation in NCI CBIIT - Browser

  20. Metadata Open Forum 2008 –ISO/IEC 11179 Implementation in NCI CBIIT- Browser

  21. Metadata Open Forum 2008 –NCI CBIIT and caBIG™ Data Standards

  22. Metadata Open Forum 2008 –NCI CBIIT and caBIG™ Data Standards - Details

  23. Metadata Open Forum 2008 –CDE Browser – Advance Search Long name: Permissible Value: Workflow Status:

  24. Metadata Open Forum 2008 –Curation Tool

  25. Metadata Open Forum 2008 –Curation Tool

  26. Metadata Open Forum 2008 –Curation Tool

  27. Metadata Open Forum 2008 –Curation Tool Example – Searching for a Representation Term in the Curation Tool brings up The list of 37 preferred Representation terms.

  28. Metadata Open Forum 2008 –Preferred Representation Terms Anatomic Site Category Code Count Date Date/Time Dose Duration Float Frequency Grade • Identifier • Ind-2 • Ind-3 • Indicator • Integer • Interval • Measurement • Name • Number • Range • Rate • Reason • Result • Scale • Score • Source • Specify • Stage • Status • Text • Time • Type • Unit of Measure • Value

  29. Metadata Open Forum 2008 –Curation Tool

  30. Metadata Open Forum 2008 –Curation Tool

  31. Metadata Open Forum 2008 –Curation Tool

  32. Metadata Open Forum 2008 –Curation Tool

  33. Metadata Open Forum 2008 –Administration Tool

  34. Metadata Open Forum 2008 –Administration Tool

  35. Metadata Open Forum 2008 –Administration Tool

  36. Metadata Open Forum 2008 –Administration Tool

  37. Metadata Open Forum 2008 –Ways to Register Metadata into the caDSR • Manual Curation • Model Loading • Batch Loader

  38. Metadata Open Forum 2008 –Sources of Metadata

  39. Metadata Open Forum 2008 –ISO/IEC 11179 Implementation in NCICBIIT

  40. Metadata Open Forum 2008 –ISO/IEC 11179 Implementation in NCICBIIT

  41. Metadata Open Forum 2008 –Curation of Content: Data Element

  42. Metadata Open Forum 2008 –Curation:Loading a Model into caDSR

  43. Metadata Open Forum 2008 –ISO/IEC 11179 Administered Items

  44. Metadata Open Forum 2008 –ISO/IEC 11179 Administration Record

  45. Metadata Open Forum 2008 –Creation of Metadata: Data Element Concept What guidance does the ISO/IEC 11179 Standard give for DEC creation? • Conceptual Domain • Object + Qualifiers (optional) • Property + Qualifiers (optional) • Administration Record: • Data Identifier (‘Public ID’) • Version • Long, Short, and alternate names • Definitions (we use 3 types) • Effective date • Until date • Classifications • Origin • Administrative status • Registration status • And more characteristics…

  46. Metadata Open Forum 2008 –Creation of Metadata: Value Domain What guidance does ISO/IEC 11179 give for VD creation? • Conceptual Domain • Representation term + Qualifiers • Data Identifier (‘Public ID’) • Version • Long, Short, and alternate names • Definitions • Effective date • Until date • Classifications • Origin • Administrative Status • Registration Status • Data type • Field length • UOM • Permissible values/Value meanings/Concepts/Value meaning Descriptions • Reference Documents

  47. Metadata Open Forum 2008 –Creation of Content: Data Element What guidance does ISO/IEC 11179 give for DE creation? • DE • VD • Document Text – Question used on a form • Definition • Effective Date • Until Date • Data Identifier • Version • Classifications • Documents • Origin • Administrative status • Registration Status • Reference Documents

  48. Metadata Open Forum 2008 –caDSR Organization of Content Organization of Metadata in caDSR • By Context or owning group • By Model (UML Browser) • By Classification (CS) / Classification Scheme Item (CSI) • Different ‘types’ of CS’s represent Business Categories, Data or Web Services, Items used together, etc. • By Form

  49. Metadata Open Forum 2008 –Organization of Metadata in caDSR: Contexts A context is a group owning metadata • Context administrator • Business rules for aspects of metadata curation and maintenance • Privileges for an identified set of users/curators

  50. Metadata Open Forum 2008 –NCI CBIIT Data Quality Metrics • Analyze the current content and identify issues • Clean-up quality of content in the caDSR by addressing incomplete, inconsistent, and redundant metadata in the caDSR • Establish best practices and business rules to prevent the creation of data quality problems in the future • Strengthen the reuse of metadata across user communities

More Related