- Single search engine
- The Data
- Many different types of data domains
- Data from multiple sources in a single domain
- Sources are generally comprehensive databases
- Domain can include both primary (archival) and curated data
- For the sake of brevity, we'll refer to data domain as "database"
- Search Features
- Text term searches (author, subject word, gene name or symbol, journal
name, accession, etc., but the query cannot be string of sequence data)
- Integrated access across databases (hard links -- see Entrez data model as an example)
- Related records ("neighbors") within databases - powerful browsing
tool
- Algorithm for neighboring depends on database
- Four ways to search: basic, advanced (two different approaches),
complex Boolean -- more on each of those later...
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