By Mario Piattini
Here's a thorough creation to the newest advancements in database platforms layout provided from an purposes viewpoint. that includes contributions from famous specialists within the box, this new ebook can pay specific consciousness to concerns raised by way of new tendencies in database layout, and the way those advancements have an effect on the programmer and database administrator. The authors and editors current recommendations in an intuitive and motivating demeanour, making wide use of examples, and together with lists of references for added research with each one bankruptcy.
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Extra resources for Advanced Database Technology and Design
Yang, and J. P. Fry, A Logical Design Methodology for Relational Databases Using the Extended Entity-Relationship Model, ACM Computing Surveys, Vol. 18, No. 2, 1986, pp. 197222. , Control de restricciones de cardinalidad en una metodología de desarrollo de bases de datos relacionales, Novatica, No. 140, 1999, pp. 2833.  Chen, P. , The Entity/Relationship Model: Toward a Unified View, ACM Trans. on Database Systems, Vol. 1, No. 1, Mar. 1976, pp. 936.  Chen, P. , Vol. 46, 1977. , Sobre la evolución reciente de las bases de datos, Novatica, No.
4 Semantic, active, and object DB systems. Prog. C Prog. C 20 Advanced Database Technology and Design Future DBMSs must manage in an integrated way, not only different types of data and objects but also knowledge. In that respect, research into deductive DBMSs has been carried out (see Chapter 4). Two other important aspects of modern IS that are being incorporated into DBs are time (temporal DBs; see Chapter 5) and uncertainty (fuzzy DBs). Both aspects are crucial in decision-making. Decision support systems (DSS) and executive information systems (EIS) are being integrated in wider data warehousing/data mining environments in which DB technology plays a decisive role.
The information base is a description close to the conceptual schema and is not meant to be an internal description. Unfortunately, the term conceptual model is not always used with the same meaning in the literature. Besides the meaning we have given to it, other meanings we may find are these: • Conceptual model = conceptual schema • Conceptual model = conceptual schema + information base We have chosen to use three distinct terms (conceptual model, conceptual schema, information base) to distinguish three different concepts.