Those three kinds of data-model instances are conceptual schema, logical schema, and physical schema. A conceptual data model or conceptual schema is a high-level description of information used ...

These top data modeling tools and applications enable users to build conceptual and logical data models that deliver significant competitive advantage. Written by eWEEK content and product ...

The logical data model contains more detail than the conceptual data model and includes all the entities, relationships, attributes and rules that apply to the data. This type of model is used to ...

Logical data models detail how entities in the conceptual model map to tables, fields, indexes and relationships within a relational database. For example, a relational table may represent an ...

An enterprise conceptual data model is often seen as a high mountain to be climbed ... The canonical data model is most often a normalized logical ERD, but not necessarily fully attributed. Primary ...

In the simplest terms, a logical data model is a visual representation of the business rules and requirements covering the universe-of-discourse for a given solution or enterprise, along with some ...

Teradata Corp. has introduced the Utilities Logical Data Model (uLDM). Teradata Corp. has introduced the Utilities Logical Data Model (uLDM). As a utility's business needs evolve, the Teradata uLDM ...