Data Model And Business Structure

The term Data Model is used in software development

. It is an abstract model that is helpful in maintaining and organization business data that can be used for business communication. It also serves a purpose of designing software or different web solutions, especially in storage and access of data. These models are used to represent objects or entities that are of interest to the company. It can also be said as a medium that can be used by different team members to communicate with each other. It also acts like a road map that helps a person at point A to go to point B of the project.

To give data model a precise definition, it is a structured and organized data structure that is implemented in database management system. On basis of design, data model can be represented in three forms:

Conceptual Schema

Logical Schema

Physical Schema

A conceptual schema describes an organizations semantics. It includes all terms used in business, from small details like employees details to complex business transactions. Relationships between these entities are also included under conceptual schema.

A logical schema describes the conceptual schemas semantics. It consists of columns, tables, object oriented classes, XML tags, etc and can be represented by a specific technology that is used for data manipulation. These descriptions are used in implementation of software applications to stimulate real life scenarios of business activities.

A physical schema is the description of physical means of storing data. It includes storage requirements in various devices, like computer, cable network, routers, etc.

These data models are made for an organization by business analysts and data architects. The following are good guidelines to make a good common data model:

The concerned people should be well aware of database concepts, like normalization, optional and cardinality. Instead of data model, they should be more interested in final database. They should have extensive knowledge of business rules and requirements.

Besides describing databases structure, data model also helps in describing underlying structure of business. It can be taken as grammar used for artificial intelligence in business. In real world, data model are used to represent different kind of things at various stages of software development process. These entities hold information and relationships. It not only represents data in computer system, but also describes the company data.

It is therefore recommended to have a good conceptual data model that could describe semantic of a given area. These models collect assertion with regard to nature of information used. Natural language should be preferred over technical terms in case of naming entities. Relationships should also be named properly, as they form assertions about the subject. It is mandatory for a common data model to be stable and steady.

Needless to say, that in case of software development, these models serve an important part of communication and has given web solution India a new looked by simplifying complications involved. These models have helped a lot in bridging the gap or alleviating confusions between different team members.

by: shriv

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