The entity-relationship (ER) model, using varying notations and with some semantic
variations, is enjoying a remarkable and increasing popularity in both the research …

A great deal of recent work in computer science applies itself to temporal database design.
Designers of geographical information systems (GIS) can build on this work to create a …

GIS: A Computing Perspective, Second Edition, provides a full, up-to-date overview of GIS,
both Geographic Information Systems and the study of Geographic Information Science …

• Bases de datos relacionales (Capítulos 4 al 7). El Capítulo 4 se centra en el lenguaje
relacional orientado al usuario de mayor influencia: SQL. El Capítulo 5 cubre otros dos …

Electronic Health Records (EHRs) have emerged as a cost-effective data source for
conducting medical research. The difficulty in using EHRs for research purposes, however …

Semiotics, the science of signs, has long been recognised as an important discipline for
understanding information and communications. Moreover it has found wide application in …

Time in Geographic Information Systems Page 1 Time in Geographic Information Systems
Page 2 Technical Issues in Geographic Information Systems Series Editors: Donna J. Peuquet …

We describe Telos, a language intended to support the development of information systems.
The design principles for the language are based on the premise that information system …

In a database to which data is continually added, users may wish to issue a permanent
query and be notified whenever data matches the query. If such continuous queries examine …

Recently, attention has been focused on spatial databases, which combine conventional
and spatially related data, such as geographic information systems, CAD/CAM, or VLSI. A …