Lecture Slide by Md. Masudur Rahman, Lecturer, Khulna University, Bangladesh

1. Implementation & Operations
Md. Masudur Rahman
Lecturer
CSE, KU

2. Contents
 Overview
 Major Tasks
 Tasks in Groups & Deliverables
 Software Application Testing
 Acceptance Testing
 Installations
 Implementation Failure
 Maintenance

3. Overview
 Expensive –too many tasks, too many people
 Physical design to computer codes
 Detecting and correcting errors
 Installing new system
 Possible modification and improvement

4. Major Tasks
 7 Tasks
 Group1 : Coding, Testing, Installation
 Group 2: Documentation, Training, Support
 Group 3: Maintenance

5. Group 1 + Deliverables
 Coding : converting design into computer
codes
 Testing: Detecting and correcting errors
 Installation: Installing new system
 Code, program, documentation, Test plan,
Test data, Test Results
 User Guides, Installation & conversion plans

6. Group 2 + Deliverables
 Training: Training the trainers
 Support: Supporting/helping users through
different ways- help file, forum, online desk
etc
 Documentation, Tutorials, Help desk, Bulletin
board, Blogs etc

7. Group 3 + Deliverables
 Maintenance Activities
 To correct or prevent errors
 To improve the system
 To adapt with new/changing needs
 Maintenance plans

8. Application Testing
 Without code execution
 With Code execution
 Manual Vs automated

9. Application Testing
 Inspection
 Syntax checking
 Walkthrough
 Desk checking
 Unit Testing
 Integration Testing
 System Testing
 Stub Testing

10. Acceptance Testing
 Alpha Testing: Test with simulated data
 Beta Testing: Test with real time data

11. Alpha Testing
 Recovery Testing
 Security Testing
 Stress Testing
 Performance Testing

12. Installation
 Moving from current system to new
developed system
 4 types
 Direct Installation
 Parallel installation
 Single location installation
 Phased Installation

13. Documentation
 System Documentation-intended for
maintenance programmers
 User Documentation – intended for system
users
 System Documentation – 2 types
 Internal Documentation
 External Documentation

14. Implementation Failure
 Risk – lack of user involvement
 Commitment to project
 Commitment to change
 Lack of Project definition and planning
 Unrealistic requirements

15. System Maintenance
 New requests for changes
 4 types
 Corrective
 Adaptive
 Perfective
 Preventive

16.  Thanks