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Taxonomies for Public Access to Government of Canada Information and Services: 

Taxonomies for Public Access to Government of Canada Information and Services Nancy Brodie Information Management Division GOL CIOB TBS to DND Knowledge Management Meeting 2002-04-10

Outline of Presentation: 

Outline of Presentation Organizing information - definitions Controlled vocabulary standard Approaches to taxonomy or classification Cluster Blueprint GOC Core Subject Thesaurus GOC Business Lines Other controlled vocabularies


Definitions Classification - organizes ideas into a hierarchy e.g. Dewey, NAICS Taxonomy - a collection of groups of groups, traditionally hierarchical, now often used for any organizing principle or view Controlled vocabulary - a list of preferred terms e.g. authority file


Definitions Subject headings – Controlled subject vocabularies used in libraries e.g. LCSH Thesaurus - specifies relationships between terms and includes preferred terms, non-preferred terms, broader and narrower terms Ontology - specifies relationships between things based on their characteristics e.g W3C Web Ontology

Controlled Vocabulary Standard TBITS 39.2: 

Controlled Vocabulary Standard TBITS 39.2 Adopts the principle of controlled vocabulary Adopts the Government of Canada Core Subject Thesaurus from the Depository Services Program (DSP) as the default thesaurus to be used by federal organizations. to be used with the Common Look and Feel (CL&F) mandatory element “Controlled Subject”. Controlled vocabulary used by the Government of Canada should be registered with the National Library and publicly available

Criteria for Controlled Vocabularies: 

Criteria for Controlled Vocabularies User driven terminology e.g. Cluster Blueprint, Blue Pages Ease of indexing e.g. document management system at desktop Interoperability, standards e.g. library Functions supported e.g. records disposition One vocabulary may not meet all criteria

Organizing information to meet user needs: 

Organizing information to meet user needs Organizational information ecology User community of discourse Portal Taxonomy by recognizing differences in language A taxonomy allows portal managers to establish categories of information and standardize terminology


Clustering by client priorities: a cluster blueprint Government of Canada Portal: Gateways: Clusters (35)


Canadians Aboriginal Peoples Canadians Living Abroad Children & Youth Consumer Information Culture, Heritage & Recreation Economy Environment, Natural Resources, Fisheries and Agriculture Financial Assistance & Entitlements Health Jobs, Workers, Training and Careers Justice and the Law Life Events: Lost I.D. Newcomers to Canada Persons with Disabilities Public Safety Rural & Remote Services Science & Technology Seniors Taxes Travel at Home & Abroad Voluntary Sector Canadian Business Financing Human Resources/Employment Business Statistics and Analysis Innovation / R&D / Technology Exporting / Importing Mergers, Acquisitions and Bankruptcy Regulations / Legislation Selling to Government / Tenders Business Start Up Taxation Non-Canadians Arts & Culture Canada and the World Doing Business with Canada Going to Canada 3 Gateways and 35 Clusters

Examples of cluster taxonomy : 

Examples of cluster taxonomy Cluster names and scope Cluster topics Canadian Health Network topics - 27 Sources of Financing - 8 topics Statistics Canada themes Controlled subject terms - from a list or thesaurus GoC Core Subject Thesaurus Keywords with descriptors Consumer Gateway

Organizing information for accountability: 

Organizing information for accountability Reporting to Parliament Main Estimates Business lines and results Functional classification Chart of Accounts

GoC Core Subject Thesaurus: 

GoC Core Subject Thesaurus Bilingual Available on the Web Meets standards: ISO 2788, ISO 5964 Broad and general: represents all fields of knowledge found in GoC information resources & services Departments can register other thesauri that meet their needs with the National Library Departmental and/or existing thesauri must be capable of being mapped to the CST.


Keywords Keywords are uncontrolled terms which can be used to supplement controlled vocabulary Keywords are used by external search engines Non-controlled subject terms should only be used in the HTML tag “Keywords” <meta name="dc.subject" scheme="gccore"content="Immunization; Infectious diseases"> <meta name=”Keywords" content=”Flu">

Other subject vocabularies: 

Other subject vocabularies Cluster names and topics Blue Pages Keywords Departmental topics Departmental business lines Being included in or mapped to the Core Subject Thesaurus

Other Classification Schemes and Controlled Vocabularies: 

Other Classification Schemes and Controlled Vocabularies GoC organizations - GEDS (dc.creator) Geographic schemes (dc.coverage) Canadian Geographic Names Database Postal Code Document type (dc.type) Audience (dc.audience) NAICS NOCS

Thesauri and Controlled Vocabularies Resources : 

Thesauri and Controlled Vocabularies Resources Terminology Used in the Federal Government of Canada Other Canadian Terminology Additional Resources Compendia of Thesauri Construction & Management Tools Learning Tools

Automated Classification: 

Automated Classification Software that leverages human-defined rules or pattern matching algorithms to automatically assign index terms to documents. “ great promise to integrate human expertise in designing taxonomies with software that populates those taxonomies quickly, consistently, and inexpensively” Peter Morville Examples: Interwoven Metatagger, Autonomy Categorizer, Inktomi Search CCE, InXight Categorizer, Mohomine mohoClassifier

Thesaurus Management: 

Thesaurus Management Tools that provide support for the development and maintenance of controlled vocabularies and thesauri. “The hard part is supporting controlled vocabulary management in today's decentralized environments.” Peter Morville Examples: MultiTes, Lexico, Oracle interMedia, Verity

Automated Category Generation : 

Automated Category Generation Software that leverages pattern-matching algorithms to automatically generate categories or taxonomies “The demos we've seen produce truly confusing category schemes with tremendous redundancy and mixed granularity.” Peter Morville Examples: Semio Taxonomy, Autonomy Portal-in-a-Box

Government Information Context Model Source: Ontario Government: 

Government Information Context Model Source: Ontario Government All the information and data used by a government can be classified into one of three context areas and then further classified into specific information groupings.

Identification of Common Elements Source: Ontario Government: 

Identification of Common Elements Source: Ontario Government Core Businesses (C6-Why) Rules (C6-Why) provide framework for Goals and Strategies (C6-Why) define nature of Programs (C2-How) define terms of fund Services (C2-How) address Clients (C4-Who) Partners (C4-Who) Stakeholders (C4-Who) Locations (C3-Where) GO Organizations (C4-Who) respon- sible for administer Resources (C1-What) found at provided at constrain delivery of Business Cycles (C5-When) Business Events (C5-When) determine timing of trigger delivery of provided by impact Needs (C6-Why) experienced by Individuals (C4-Who) Organizations (C4-Who) are involved as deliver services as receive services as A conceptual data model defines the high level subject areas and the type of relationships between them. Any public sector computer application can use this model to begin design and development. Subject areas hi-lighted in red are common and thus form the basis for defining common data elements.

Data/Information Taxonomy Source: Ontario Government: 

Data/Information Taxonomy Source: Ontario Government Location Address Area Geo-spatial Mobile Subject Area Subject Area Class Mailing Shipping Contact Home Subject Area Type street number street name Postal code Subject Area Data Element Over 150 Common Data Elements from 5 Subject Areas (One of the five subject areas in red on previous slide)


Health Justice Private Sector Partners Conceptual Service Delivery Model

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