A federated database system (FDBS) is a collection of cooperating database systems that
are autonomous and possibly heterogeneous. In this paper, we define a reference …

One of the fundamental principles of the database approach is that a database allows a
nonredundant, unified representation of all data managed in an organization. This is …

An ontology typically provides a vocabulary describing a domain of interest and a
specification of the meaning of terms in that vocabulary. Depending on the precision of this …

A database design methodology is defined for the design of large relational databases. First,
the data requirements are conceptualized using an extended entity-relationship model, with …

Most common database management systems represent information in a simple record-
based format. Semantic modeling provides richer data structuring capabilities for database …

This briefer version of the authors' highly successful Modern System Analysis and Design is
a clear presentation of information, organised around the systems development life cycle …

One step in interoperating among heterogeneous databases is semantic integration:
Identifying relationships between attributes or classes in different database schemas …

Interoperability is the most critical issue facing businesses that need to access information
from multiple information systems. Our objective in this research is to develop a …

This book is about methods for determining computer system requirements. It is written
primarily as an introduction to requirements engineering methods for computer science …

A methodology for extracting an extended Entity-Relationship (EER) model from a relational
database is presented. Through a combination of data schema and data instance analysis …