Logical data flow diagrams. Logical data flow diagrams illustrate how data flows in a system, with a focus on the business processes and workflows. With a focus on how the business operates at a high ...

Learn how to optimize ER diagrams for database design using best practices and techniques, such as abstraction, naming, normalization, cardinality, and validation.

The increasing usage of column-oriented NoSQL drives people to define methods to model the data structure of this technology. The data modelling methods require the support of tools or applications to ...

Venn used the diagrams to prove a form of logical statement known as a categorical syllogism. This can be used to model reasoning. Here’s an example: “All computers need power.