• Like
View Additional Files
Upcoming SlideShare
Loading in...5
×
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
196
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
3
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Chapter 15 Database Administration Database Systems: Design, Implementation, and Management, Seventh Edition, Rob and Coronel
  • 2. In this chapter, you will learn:
    • That data are a valuable business asset that require careful management and how databases play a critical role in an organization
    • That the introduction of a DBMS has important technological, managerial, and cultural organizational consequences
  • 3. In this chapter, you will learn (continued):
    • What the database administrator’s managerial and technical roles are
    • About several database administration tools and strategies
    • How various database administration technical tasks are performed with Oracle
  • 4. Data as a Corporate Asset
    • Data are a valuable asset that require careful management
    • Data are a valuable resource that can translate into information
    • If the information is accurate and timely, it is likely to trigger actions that enhance company’s competitive position and generate wealth
  • 5. Data as a Corporate Asset (continued)
  • 6. The Need for and Role of Databases in an Organization
    • Database’s predominant role is to support managerial decision making at all levels in the organization
    • DBMS must provide tools that give each level of management different view of data and support required level of decision making
  • 7. Introduction of a Database: Special Considerations
    • Having computerized database management system does not guarantee that data will be properly used to provide best solutions required by managers
    • Introduction of a DBMS is likely to have a profound impact, which might be positive or negative, depending on how it is administered
  • 8. Introduction of a Database: Special Considerations (continued)
    • Introduction of DBMS has three important aspects:
      • Technological-DBMS software and hardware
      • Managerial-Administrative functions
      • Cultural-Corporate resistance to change
  • 9. The Evolution of the Database Administration Function
    • Data administration has its roots in the old, decentralized world of the file system
    • Advent of DBMS and its shared view of data produced new level of data management sophistication and led DP department to evolve into information systems (IS) department
    • Data management became increasingly complex job, thus leading to development of database administration function
  • 10. The Evolution of the Database Administration Function (continued)
  • 11. The Evolution of the Database Administration Function (continued)
  • 12. The Evolution of the Database Administration Function (continued)
  • 13. The Evolution of the Database Administration Function (continued)
  • 14. The Database Environment’s Human Component
    • Even most carefully crafted database system cannot operate without human component
    • Effective data administration requires both technical and managerial skills
    • DA must set data administration goals
    • DBA is focal point for data/user interaction
    • Need for diverse mix of skills
  • 15. The Database Environment’s Human Component (continued)
  • 16. The Database Environment’s Human Component (continued)
  • 17. The Database Environment’s Human Component (continued)
  • 18. The DBA’s Managerial Role
  • 19. The DBA’s Technical Role
    • Rooted in following areas of operation:
      • Evaluating, selecting, and installing DBMS and related utilities
      • Designing and implementing databases and applications
      • Testing and evaluating databases and applications
      • Operating DBMS, utilities, and applications
      • Training and supporting users
      • Maintaining DBMS, utilities, and applications
  • 20. The Data Dictionary
    • Two main types of data dictionaries:
      • Integrated
      • Standalone
    • Main function-Store description of all objects that interact with database
  • 21. The Data Dictionary (continued)
    • Possible to manage use and allocation of all organization’s information, regardless of whether it has roots in database data
    • Metadata stored in data dictionary are often basis for monitoring database use and assignment of access rights to database users
  • 22. CASE Tools
  • 23. CASE Tools (continued)
  • 24. Developing a Data Administration Strategy
    • Critical step for any organization is to ensure its information system supports strategic plans for each of the company’s business areas
    • Database administration strategy must not conflict with information systems plans
  • 25. Developing a Database Administration Strategy (continued)
    • Information engineering
      • Translates strategic company’s strategic goals into data and applications that will help company achieve those goals
      • Output of IE process is information systems architecture that serves as basis for planning, development, and control of future information systems
  • 26. Developing a Database Administration Strategy (continued)