1. COMP/EECE 7012/8012: Foundations of Software Engineering
Spring 2013
Scott Fleming, Instructor

2. What distinguishes software engineering from other types of software creation?
Large Scale
Customers
Teams of Developers

3. What is the measure of a successful software engineering project?
Customer Satisfaction
* OK, effect on society and humanity matters too, but humor me…

4. Meets their needs, On time, On budget What do customers want?
Software that
Meets their needs,
On time,
and
On budget

5. Unfortunately, satisfying customers is hard…
Have you ever been a dissatisfied customer?

6. The “Software Crisis” Since the 1960s (More like a depression)
(Standish Group)
Of 28,000 projects completed in 2000…
(Cutter Consortium)
2002 Study: 78% of orgs landed in court
Let’s discuss some underlying problems…

7. Problem: Requirements

8. “The customer is always right!”
But …
Customers may change their minds
Customers may not agree with each other
Customers may not know exactly what they want

9. Problem: Cost estimation

10. Spectacular failure: Denver Int’l Airport baggage-handling system
Largest international airport in the US (by area)
Scheduled to open in Oct ‘93; actually opened in Feb ‘95
Had to buy back up system and scale back first system after deadline had passed
System never did work as intended and was retired in 2005
Problems both managerial and technical
Hard to get precise figures on how over-budget, but one estimate at $3.2 billion

11. Problem: Bugs

12. Spectacular failure: Therac-25 radiation therapy machine
6 overdoses between Jun ‘85 and Jan ‘87.
First overdose:
Breast cancer
“tremendous force of heat… this red-hot sensation”
Reddening, swelling in front; later matching back; tremendous pain
Lost breast and lost use of arm, shoulder
15,000-20,000 rad overdose; 200 rad normal dose; 1000 to whole body will kill
Manufacturer and operators refused to implicate Therac-25
Other cases were similar; one for skin cancer on face resulted in death in one month

13. Problem: Maintenance

14. All successful software will change over time
But such change can lead to design erosion

15. But to effectively apply these approaches requires a lot of experience
What ways have you heard of to overcome these problems and satisfy the customer?
In this course, we’ll learn about:
Agile development
Iterative development
Test-driven development
Object-oriented analysis and design
But to effectively apply these approaches requires a lot of experience

16. Course Goals Significant software project Team skills
Communication skills
Project management

17. What type of software will you build for the project?
Web Apps!

18. Why web apps?
Create apps every bit as dynamic, interactive, and custom tailored as native apps
Avoid deployment problems
Reach people world wide

19. Course Structure Web App Boot Camp (4 weeks)
7 Homeworks
Project Alpha Iteration (6 weeks)
Project Beta Iteration (4 weeks)
Each project iteration ends with presentation
Required readings + quizzes throughout project
Three exams evenly spaced

20. Grading 40% Team Project 30% Exams (×3) 10% Quizzes 10% Homework
15% Regular Productivity
5% Above & Beyond
10% Alpha Milestone
10% Beta Milestone
30% Exams (×3)
10% Quizzes
10% Homework
10% Participation

21. Now for the schedule…

22. What’s next? Read syllabus and take the quiz Do Homework 0
Due Tuesday by 5:30
Do Homework 0
Fill out Project Preferences Questionnaire
Due in Dropbox by midnight on Sunday