Title :
Aggregation semantics and NF2 model of data
Author :
Sen, Arun ; Choobineh, Joobin ; Hernandez, Hector
Author_Institution :
Dept. of Bus. Anal. & Res., Texas A&M Univ., College Station, TX, USA
Abstract :
Aggregation is formalized in terms of the power set and the Cartesian product operators. It is shown that aggregation semantics can be represented by a labeled directed acyclic graph (LDAG). Vertices and edges of this graph are labeled to capture the semantics (constraints) of aggregations. Examples of popular real-world aggregations are given in terms of this LDAG. It is argued that the non-first-normal-form (NF 2) data model provides a natural means for implementation of this aggregation DAG
Keywords :
data structures; directed graphs; relational databases; Cartesian product operators; NF2 model of data; aggregation semantics; labeled directed acyclic graph; nonfirst normal form; power set; Aggregates; Birds; Computer science; Data models; Databases; Educational institutions; Noise measurement; Remuneration; Telephony;
Conference_Titel :
System Sciences, 1990., Proceedings of the Twenty-Third Annual Hawaii International Conference on
Conference_Location :
Kailua-Kona, HI
DOI :
10.1109/HICSS.1990.205150
