Data modeling is one of the business entities, which when used properly by the company’s IT department can deliver enormous amount of benefits to any business enterprise, which include:
Given below are a few fundamental rules to guide the users on how and where to start from.
The same sources must be used to extract the information for the Data modeling of the business functions in order to maintain the relevancy.
The Integrated Modelling Method provides an effective technique in order to extract the individual entities, relationships and attributes from the various sources from which the extraction of the Business Functions were done. This technique can be utilized by the experienced analysts and the novice alike.
The basic technique:
Removal of the spurious or false entities is required to be done from the list of candidate entities. Any kind of “invoice” falls in the list. It is actually a piece of paper which represents a business entity or a collection of entities such as a sale or any other kind of billing. The sale and billings are the entities which actually need to be modeled.
Converting Associations to Relationships
The associations which are identified must also be rationalized and converted into the “relationships” so that they can form the meaningful information. Associations are simply used as the means of projection of the two entities and then define them using a suitable name. A relationship is used to portray all the necessary information that is needed to know about the association. This includes –