Chapter 7 and 8

In chapter seven, it is all bout storing organizational information especially bout databases. As we know, information is stored in databases, it will maintains information about various types of objects such inventory, transactions, people, and warehouses. It include Hierarchical database model, network database model and relational database model. The relational database advantages here is, it will increased flexibility, then increase scalability, reduce information redundancy, increase information integrity and also increased information security. Database offer several security features such as password, access level which mean it determines who has access to the different types of information and lastly access control in term of types of user access.

Whilst in chapter eight, it tell us bout accessing organizational information especially in data warehouse. Data warehouse provided the ability to support decision making without disrupting the day-to-day operations. IT is a logical collection of information gathered from many different operational database that supports business analysis activities and decision making tasks and the primary purpose of it is to aggregate information throughout an organization into a single repository for decision making purpose. It have extraction,information and loading and datamart. Many more that i have learned in this both chapter include their multidimensional analysis and data mining, information cleansing and scrubbing and also business intelligence. OK ! i think it is enough for today. :)