TY - GEN
T1 - CONCEPTUAL LEVEL VERSUS LOGICAL LEVEL USER-DATABASE INTERACTION
AU - Chan, H. C.
AU - Wei, K. K.
AU - Siau, K. L.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 1991
Y1 - 1991
N2 - User-database interaction can be classified into various abstraction levels. The two higher levels are the conceptual level and the logical level. On the conceptual level, the user talks of things in his world, for example, in terms of entities and relationships. On the logical level, the user talks of things in the database system, for example, in terms of relations and join operations. The user world is something that the user is expected to know, but the data in the database system is something new to the user. Thus, the conceptual level is closer to the user. Therefore, we hypothesized that the conceptual level interaction will be easier for the user. This was tested with the entity-relationship (ER) model for the conceptual level model and the relational model for the logical level model. The results showed that users of the conceptual level had 38% higher accuracy, 16% higher confidence, and took only 35% of the time taken by users of the logical level. The differences were statistically significant with p values better than 0.003. From the user’s perspective, the huge differences make it worthwhile to consider the ER model in place of the relational model.
AB - User-database interaction can be classified into various abstraction levels. The two higher levels are the conceptual level and the logical level. On the conceptual level, the user talks of things in his world, for example, in terms of entities and relationships. On the logical level, the user talks of things in the database system, for example, in terms of relations and join operations. The user world is something that the user is expected to know, but the data in the database system is something new to the user. Thus, the conceptual level is closer to the user. Therefore, we hypothesized that the conceptual level interaction will be easier for the user. This was tested with the entity-relationship (ER) model for the conceptual level model and the relational model for the logical level model. The results showed that users of the conceptual level had 38% higher accuracy, 16% higher confidence, and took only 35% of the time taken by users of the logical level. The differences were statistically significant with p values better than 0.003. From the user’s perspective, the huge differences make it worthwhile to consider the ER model in place of the relational model.
UR - https://www.scopus.com/pages/publications/85139161365
UR - https://www.scopus.com/pages/publications/85139161365#tab=impact
M3 - RGC 32 - Refereed conference paper (with host publication)
T3 - Proceedings of the 12th International Conference on Information Systems, ICIS 1991
SP - 28
EP - 40
BT - Proceedings of the 12th International Conference on Information Systems, ICIS 1991
PB - Association for Information Systems
T2 - 12th International Conference on Information Systems, ICIS 1991
Y2 - 16 December 1991 through 18 December 1991
ER -