physical data independence
physical data independence
[′fiz·ə·kəl ¦dad·ə ‚in·di′pen·dəns] (computer science)
A file structure such that the physical structure of the data can be modified without changing the logical structure of the file.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.