An Introduction to Computer Searching of
Chemical Abstracts
STN International Version
Advantages and Limitations of Computer Searching
Advantages
- Fast
- More Current
- More access points
- Search several variables simultaneously
- Internactive capability to alter search strategy online
- Bypass indexing pecularities
- Indexing of useful articles can be displayed; an aid for improving search
- Usually can search a larger file simultaneously than in printed index
- No printed counterpart
- Access not limited to use in library
Limitations
- Literalness of computer operations
- Dependence on index policy; knowledge of index policy essential
- Dependence on indexer viewpoint
- Some questions are not appropriate for computer searches:
- general information about technique
- when browsing is helpful
- Computerized file often covers fewer years than printed index