Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Mis jaiswal-chapter-04


Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Mis jaiswal-chapter-04

  1. 1. Chapter 4 Database Management
  2. 2. • Sharable - data that is being created at any one point in the organisation is of use for multiple departments , processes or SBU’s, and should be easily sharable by all the relevant departments , processes and SBU’s •Consistent - when dealing with multiple and completely independent data sources ,a single fact might be stored at a number of places differently • Reduced redundancy - in file systems or application data stores , same data is often stored in multiple places as well as a multiple number of times in the same data store • Standardized - representation of data should be in a standard form so that sharability of data is possible
  3. 3. • Software used to create, manage and control the database is called a database management system (DBMS) • Access and use of the data stored in the database is only through the database management system
  4. 4.  A DBMS can help in monitoring sales, summarize sales data, inventory tracking and analysis, quick answers to ad-hoc queries  A marketing database can support an enterprise- level marketing analysis , demand forecasting and distribution management, resulting in more effective processes.  Customer databases can help marketers to engage in selling personalized products and services and also be used for target marketing campaigns  A DBMS can support the logistics , distribution and materials management process in a very effective manner by linking the sales database to the inventory database for realtime inventory management
  5. 5.  A database which contains the qualification and experience details about employees can be extremely handy in job scheduling on a daily or a weekly basis  A database management system can be used to store the performance history of an employee and thus help in analyzing the training needs of the employees  Online leave and attendance records in a database can be extremely helpful in analyzing certain employee behaviors and thus help the HR managers to find a solution to this problem  An HR DBMS can help in performance evaluation and benefits administration on a real-time basis without employees having to write letters and letters for benefits claim  Knowledge databases can support the organizational learning model
  6. 6.  The data required for evaluation and creation of financial and economic forecasting, budget and investment planning is available in financial databases  A DBMS system provides a facility for validation by means of validation checks , controls and constraints.  Using a knowledge base of financial data can help in financial and economic forecasting which is otherwise a very lengthy and tedious procedure.  DBMS system can support an online bill and invoicing procedure and link it with the delivery and receipt of products
  7. 7.  Determine the purpose of your database  Determine the tables you need in the database  Determine the fields you need in the tables  Identify fields with unique values  Determine tables the relationships between
  8. 8.  Represents the language of the organisation (processes of the organisation)  Represents the fundamental structure of the organisation (information processing requirements of each process and the information links between various processes)  Represents the physical structure of the database (logical and physical schemas of the data store)
  9. 9. Databases stored on multiple computers that typically appears to applications as a single database  Thus an application can simultaneously access and modify the data in several databases in a network  Databases are connected via a network, either local a are or wide area, which may involve different database management systems, running on different architectures, that distributes the execution of transactions
  10. 10. •A data warehouse is a single, centralized, enterprise-wide repository which combined all the data from all legacy systems and theoretically gave all users access to appropriate information
  11. 11. • The data for the data warehouse is first extracted from its native sources, such as OLTP ( Online Transaction Processing System) databases, text files, Microsoft Access, and even spreadsheets and various operational sources • This data is then placed in a data warehouse that has a structure compatible with data model • The data stored in the data warehouse resides in the form of facts and dimensions