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Discovery Access Understanding

Levels of Metadata

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Portal Demo Data.gov Geoportals

DISCOVERY PORTALS

Similar technologies Feed off metadata Certain content triggers different display and

different search

DISCOVERY PORTALS

Metadata content feeds discovery portals If content not in the metadata, indexes

cannot be built and therefore no search results

Most common indexes Title Abstract Keywords Extents

DISCOVERY PORTALS

Most search portals often also have specific classifications or topics to aid in searching

Classifications – Subject Areas Input from Portal Developer Helpful!

Topics – Categories Input from Portal Developer Helpful!

ACCESS

URLs Distribution/ordering information Formats

UNDERSTANDING

Attributes Definitions Units Domains QA/QC reports

DISCOVERY VS. ACCESS VS. UNDERSTANDING

Cannot search on content if it is not documented.

Cannot access data if links and access instructions are not included.

Cannot understand content if attributes, definitions, domains, units, etc. are not included!

“LEVELS” OF METADATA

Level Description Metadata “Author”

No Metadata Shame on You!

Discovery Level Metadata SME, Portal Developer, Data Manager

Access Level Metadata Portal Developer, Data Manager

Understanding Level Metadata

SME, Portal Developer, Data Manager

COMMON TYPES OF SEARCHES

Free Text Searches

Categorized Search

Temporal Search

Geographic Search by Keyword by Map Interface

FREE TEXT AND KEYWORD SEARCHES

SEARCH BY CATEGORY

TEMPORAL SEARCH

MAP SEARCH OR DISPLAY

DATA DISCOVERY Demonstration

QUESTIONS?Contact [email protected]