When you design your database, you first need to think about the different business areas (modules) you require, such as Request Management, Change Management, and so on. Then you can break down the information you want to keep as separate subjects (business objects), and tell the database how these business objects are related to each other. In this way, you can bring together the right information when you need it.
Determine the purpose of your database – The first step in designing your database is to determine its purpose and how it will be used. This tells you what information you want from the database.
Determine the modules you need – When you have a clear purpose for your database, you need to determine the different business areas (modules) you require, such as Request Management and Change Management.
Determine the business objects you need – When you have determined your modules, you can divide the information into separate subjects that you need to store facts about. These are called business objects. Look at the information you want to get out of your system and divide it into fundamental subjects, such as Users, Problems, CIs, and so on. Each of these subjects is a suitable candidate for a business object.
Determine the attributes you need – Decide what information you want to record about each business object. These are the attributes.
Determine the relationships – Look at the information you want to represent and decide how the data in one business object is related to data in other business objects.
There are several common pitfalls you may encounter when designing your database. These problems can cause your information to be more difficult to use and maintain. The following are signs that you need to re-evaluate the design of your database.
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