IBM Research Laboratory, San Jose, California, 1970. — 11 p. Information Retrieval, Baxendale P. (Editor) Future users of large data banks must be protected from having to know how the data is organized in the machine (the internal representation). A prompting service which supplies such information is not a satisfactory solution. Activities of users at terminals and most...
ACM Transactvxx on Database Systems, Vol. 4. No. 4, December 1979. During the last three or four years several investigators have been exploring “semantic models” for formatted databases. The intent is to capture (in a more or less formal way) more of the meaning of the data so that database design can become more systematic and the database system itself can behave more...
Комментарии