FEATURE GLOSSARY

Features that we may want to check. These were advertized in the Web pages of the various vendors. In parenthesis, the name of the vendors who claimed that feature (which does not mean that other vendors do not have it).

• SGML
• HTML
• World Wide Web Robots, Wanderers, and Spiders
• Remote Documents / remote index
• Text reduction / Automatic Abstracting
• Application Programmer's Interface (API)
• Hardware and Software Requirements
• Hypertext Navigation Links
• Information Agents
• Distributed Database Model / Multinode Server Searching / Virtual Databases
• Security: User Authentication / Encryption / Kerberos
• Billing / Activity Log
• Natural Language Searching (NLS)
• Master index / Back-of-book index
• Relevance Ranking
• Query Expansion
• Stemming
• Fuzzy Search
• Query-by-theme / Concept searching
• Topic agents
• Advisors
• Query by Example / Relevance Feedback
• Numeric Range Search
• Boolean Operators
• Proximity / Adjacency
• Wildcard Search / Right or Left truncation
• Hit Highlighting
• Automatic Subject Grouping
• Concurrent Update
• Two-Phase Commit and Transaction Control
• Index Overhead
• Index Speed
• Retrieval Speed
• Client / server
• Inverted File
• Incremental Indexing
• Customizable Stopwords
• Structured Query Language (SQL)
• Relational database / Fielded search
• Query report
• Personal notes / Annotations
• Filters
• Z39.50