In logical data modeling, no primary or secondary key is defined.

Data attributes contain data types with exact length and precisions.

The type of database management system does not affect it that much.

A logical data model can be developed and designed independently from the database management system.Yet, it is designed to seamlessly integrate with other logical data models should the project demand it to do so. A logical data model can describe the data needs for each individual project.These are the most important characteristics of a logical data model: Therefore, logical data modeling brings together the two most vital basics of application development: No matter how elegant or technical your system, it has to meet requirements, follow rules, and serve the purposes of the business or enterprise it is built for-or else it is of no practical use. A sound data structure gives application developers the freedom to design the best possible user interface, processing system, or statistical analysis and reporting set-up.

Given that data embodies the most crucial aspect of any application, program, or system, quality data processing and storage systems must be built upon a strong and accurate underlying data structure. They are not concerned with how said business requirements are processed, implemented, or stored. The above components, however, are limited to descriptions of business requirements only. These serve to continually document business rules and outline the information requirements.

Attributes: Each attribute is a descriptive piece, characteristic or any other information that is useful to further describe an entityĮach of these components of a logical data model are given a name and a textual definition.

Relationships: Every relationship represents an association between two of the above entities.

Entities: Each entity represents a set of things, persons, or concepts relevant to a business.

Components of a Logical Data ModelĪ logical data model has three main components: The logical data model incorporates all of the elements of information that are vital in the running of the day to day business. The logical data model takes the elements of conceptual data modeling a step further by adding more information to them. The logical data model serves as a blueprint for used data. It is independent of the physical database that details how the data will be implemented.

TIBCO® Messaging - Eclipse Mosquitto Distributionĭata intelligently for better access, trust, and controlĬonfidently with real-time data-driven intelligenceĪ logical data model establishes the structure of data elements and the relationships among them.

Seamlessly any application, device or data source

Tibco data model