The document provides lecture notes by Fakhar Lodhi on software engineering, focusing on reuse and extensions in use cases and activity diagrams. Key topics include cellular networks, user interactions such as placing and receiving phone calls, and the components of a use case. It emphasizes the importance of visual elements like arrows and highlights in animations to convey information effectively.

1. Software
Engineering
Lecture #6
Fakhar Lodhi

2. Reuse and Extension
An Example
Notes of the animations (highlight all the points)
1. Cellular Network
2. User
3. Place Phone call
4. Receive phone call
5. Use scheduler
5. Place conference call
6. Receive additional call
7. extend -- written at the top
8. extend -- written at the bottom

3. Extended User
An Example
Notes of the animations
Show all the slide and then scroll to the customer and individual customer
and corporate customer ----- Zoom to these objects. (highlight text and
arrow color)
1. Customer
2. Individual customer – with its arrow going towards the customer
2. Corporate Customer -- with its arrow going towards the customer

4. Components Of A Use Case
• Priority
• Actor
• Summary
• Precondition
• Post- Condition
• Extend
• Normal Course of Events
• Alternative Path
• Exception
• Assumption

5. Use Case Example
Delete Information
Information in the doc file as slide No 5.doc

6. Activity Diagram
• Animation sequence is on the slide.
• Use arrow for animation
• If it does not fit on one slide then u can use the scrolling feature. Take care
show at least three levels at a time (not less in any case and then use the
highlight feature.)

7. Reuse Extension and
Inclusion

8. Recap

9. Describing a Use Case

10. An Example of a Detailed Use
Case

11. Summary of Today’s Lecture

12. Activity Diagram

15. Use Case Example Delete
Information

16. Use Case Example Delete
Information

17. Use Case Example Delete
Information

18. Use Case Example Delete
Information

22. Activity Diagram

23. Activity Diagram

24. Activity Diagram

25. Limitation of Use Cases