A presentation for university students studying Computer Science about topics that are crucial at the workplace but not given as much attention at school

1. Three Developer -abilities they DON’T Teach in College Jacinto A. Limjap, Jr. Microsoft MVP for C# Senior Application Developer for FBM e-Services

2. It’s not that they don’t teach it

3. Maintainability A measure of how easy it is to understand, modify, and extend your code

4. Maintenance?

5. Facts you only find out at work Writing new code is the first thing you do at school, but the LAST thing you do at work

6. Facts you only find out at work You WILL spend most of your time trying to understand the code some other person wrote

7. Facts you only find out at work “Maintenance typically consumes 40 to 80 percent of software costs” – Robert L. Glass

8. Testability The degree to which a system or component facilitates the establishment of test criteria and the performance of tests to find whether those criteria have been met

9. Ask yourself When there’s a bug, how easy is it to find out which part of your code to fix?

10. Want it testable? Make it SOLID!

11. Single Responsibility Principle Your class should have one, and only one, reason to change

12. Open Closed Principle You should be able to extend a class’s behavior without modifying it

13. Liskov Substitution Principle Derived classes must be substitutable for their base classes

14. Interface Segregation Principle Make fine grained interfaces that are client specific

15. Dependency Inversion Principle Depend on abstractions, not on concretions

16. Usability The ease with which people can employ a particular tool or other human-made object in order to achieve a particular goal

20. Steve Krug’s First Law of Usability

21. Usable software makes people happy “Good UI sells software, but it also makes people happy, because people are happy when they accomplish the task they want to accomplish” – Joel Spolsky

22. Your speaker Blog: http://dotnet.kapenilattex.com Twitter: http://twitter.com/LaTtEX Facebook: http://facebook.com/LaTtEX

23. Learning to Distinguish a Solution from a Problem http://www.computer.org/portal/web/buildyourcareer/fa010 Definition for testability: http://www.aptest.com/glossary.html The Principles of OOD http://butunclebob.com/ArticleS.UncleBob.PrinciplesOfOod SOLID Development Principles – In Motivational Pictures http://www.lostechies.com/blogs/derickbailey/archive/2009/02/11/solid-development-principles-in-motivational-pictures.aspx Simplicity http://stuffthathappens.com/blog/2008/03/05/simplicity/ 2006 Krug, Steve: Don’t Make Me Think: A Common Sense Approach to Web Usability User Interface Design for Programmers http://www.joelonsoftware.com/uibook/fog0000000249.html References