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- Newsgroups: comp.databases
- Path: sparky!uunet!spool.mu.edu!agate!rsoft!mindlink!a29
- From: John_Carson@mindlink.bc.ca (John Carson)
- Subject: Re: Info hiding v/s data abstraction
- Organization: MIND LINK! - British Columbia, Canada
- Date: Sat, 26 Dec 1992 23:41:49 GMT
- Message-ID: <18923@mindlink.bc.ca>
- Sender: news@deep.rsoft.bc.ca (Usenet)
- Lines: 31
-
- > Yashesh Bhatia writes:
- >
- > Msg-ID: <1992Dec26.223412.29634@cs.brown.edu>
- > Posted: Sat, 26 Dec 1992 22:34:1
- >
- > Org. : Brown Computer Science Dept.
- >
- > Could someone let me know if there are dufferences between these two terms
- > and if so what are the pro's and cons of using one for the other in the
- > world of databeses and s/w eng.
- >
- > thanks
-
-
- Data abstraction and hiding data.
-
- 1) Data abstraction is removing the database #1 and placing into database #2
- and based on a certain condition. Then manipulating it to your needs.
-
- 2) Hiding data is like setting a filter so you only see what you want based
- on the filter condition.
-
- I personally have used both and I feel the DATA ABSTRACTION is the best if
- your original database is very large to start with. Otherwise I use the
- filter system.
-
- John
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