One of the most important steps in desiging a database is establishing the data model. Part one of a two-part article describes how to create a logical model.

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 ...

One might be kind when confronted with a data model where everything has a generated primary key and assume such models are physical-only data models. And further assume that were someone to make an ...

A logical model is similar to a flowchart diagram in many respects; if your goal is to gain an understanding of the business, use the logical model. Alternatively, the physical model is a view of the ...

A logical data model captures how a company conducts its business and how the data are organized for decision-making and analysis. The Utilities LDM also highlights data integrity problems, provides ...

Logical Systems and Model Theory constitute a foundational area bridging mathematics, computer science and philosophy through the formalisation of reasoning. By abstracting the essential ...

What is Erwin? Erwin is a Data Modeling and Database Design Application Case Tool working on Windows. CA ERwin DM creates a blueprint for the enterprises to work on a design solution. ERwin Data ...

MISMO, the standards development body for the mortgage industry released its logical data model as the next generation of the MISMO data exchange, according to a press release.

Quantitative and logic modelling are among the main methods currently used to model molecular and gene networks. Each approach comes with inherent advantages and weaknesses.

Water environment Treatment Engineering the actual data of typical slope collapse and deformation of reservoir are used as the basis, and a new quantitative theory method, logical information method, ...