Titlebook: Handbook of Conceptual Modeling; Theory, Practice, an David W. Embley,Bernhard Thalheim Book 2011 Springer-Verlag GmbH Berlin Heidelberg 20

你正派

,Kapitel I: Überblick zum Umwandlungsrecht,ot expressible in diagrammatic form. Then we turn to the description of relational databases with UML. Before we conclude, we will show how to metamodel conceptual modeling features with UML itself and discuss further relevant work from the literature.

暴行

,Überblick zum Umwandlungsrecht,h the map-then-normalize approach and the normalize-then-map approach to schema normalization. In addition to mapping conceptual models to flat relations for standard relational databases, the chapter also shows how to map conceptual models to nested relations applicable for object-based and XML storage structures.

有限

recession

Inoperable

Ostrich

共同确定为确

畸形

The Entity-Relationship Model (Reprinted Historic Data)onship model can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model. Semantic ambiguities in these models are analyzed. Possible ways to derive their views of data from the entity-relationship model are presented.

先行

BPMN Core Modeling Concepts: Inheritance-Based Execution Semanticstly with the verbal explanations in [8]. Thus, the model can be used to test reference implementations and to verify properties of interest for (classes of) BPMN diagrams. Based on the model the second author has implemented a native BPMN 2.0 Process Engine.

休闲

Conceptual Modelling of Application Storiesf storyboarding such as actors, scenarios and tasks, and the composed action scheme called “plot”. Furthermore, the pragmatics of storyboards is addressed, i.e. what the model means to users. The chapter is rounded out by discussing inferences to analyse storyboards.