Ebook Management Information System: Part 2 presents the following content: future of networking technologies; databases and data warehouses; the wireless revolution; enhancing decision making for the digital firm; .Please refer to the documentation for more details. | Pooja Lovely Professional University Unit 8 Databases and Data Warehouses Unit 8 Databases and Data Warehouses Notes CONTENTS Objectives Introduction Database Traditional vs Database Approach Files The Traditional Approach Database The Modern Approach Database Models Relational Model Object-oriented Model Relational Operations SQL Data Modelling Hierarchical Model Network Model Database on the Web Web Database Daffodil DB A Web Database PHP PHP and Daffodil DB Together Data Warehousing Characteristics of Data Warehouse What is a Data Warehouse Use of Data Warehouses in Organizations Need to Build a Data Warehouse Summary Keywords Review Questions Further Readings Objectives After studying this unit you will be able to Understand the concept of databases Differentiate between Traditional and Database Approach Explain Database Model and Relational Model Discuss Object Oriented Model Recognize Relational Operations SQL Understand Data Modelling Discuss Database on the Web Explain Data Warehousing LOVELY PROFESSIONAL UNIVERSITY 143 Management Information Systems Notes Introduction Effective use of information depends on how data are stored organised and accessed in an organisation. Proper delivery of information not only depends upon the capabilities of computer hardware and software but also on the organisation s ability to manage data as an important resource. After seeing the various methods and approaches of system development now let us have some understanding of how important are the data resources in an organisation and how the information system we developed is going to handle them. It has been very difficult for organizations to manage their data effectively. In trying to do so we have to meet two very big challenges which are standing out. Implementing a database requires a widespread organisational change in the role of .
