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 ...

Under far too many circumstances, those responsible for modeling data are ignoring the above perspective on primary keys and are simply defining surrogate keys for everything in their data model. One ...

Teradata, a division of NCR Corporation, has announced the launch of the Teradata Communications Logical Data Model (LDM) Version 5.0. NCR is represented in South Africa by National Data Systems ...

The paper is concerned with the psychological relevance of a logical model for deductive reasoning. We propose a new way to analyze logical reasoning in a deductive version of the Mastermind game ...

The results show that the logic information model has a certain guiding effect on the prediction of the stability of reservoir bank slope of water Environment control project. The Journal of Coastal ...