Software is ubiquitous in modern society and can have huge impacts, both positive and negative. However, simply programming a software is not enough - software engineering principles must be followed to develop reliable, high-quality software that meets customer needs. Some common software development issues include not fulfilling customer requirements, being difficult to improve or extend, and lacking documentation. Following a systematic process involving requirements analysis, design, implementation, testing, and maintenance can help address these issues and produce software delivered on time and budget that works as intended.

1. IntroductiontoSoftware EngineeringMohamed Gaafar

2. Importance of softwareSoftware can have a hugeimpact in any aspect of society.

3. Where can youfind software?

4. Some popular ones…

5. Some popular ones…

6. Some popular ones…

7. And even in…

8. ConclusionSoftware isAlmostEverywhere.

9. Problems in software development

10. Common issuesThe final Software doesn´t fulfill the needs of the customer.

11. Hard to extend and improve: if you want to add a functionality later is mission impossible.

12. Bad documentation.

13. Bad quality: frequent errors, hard to use, ...

14. More time and costs than expected

15. ButThatneverhappens,right?

16. Wrong!

17. Ariane 5 Flight 501Cause: design errors in the software

18. ConclusionProgrammingis NOT enough!It is not enough to do your best: you must Know what to do, and THEN do your best.-- W. Edwards Deming

19. And Since…A clever person solves a problem.A wise person avoids it.- Albert Einstein

20. Solution

21. Software EngineeringWhat is it?The application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software, and the study of these approaches; that is, the application of engineering to software. -Wikipedia

22. ???

23. Software EngineeringWhat is it?The study and application of methodologies to develop quality software that fulfill customer needs.

24. 

25. Software EngineeringObjetiveTo produce software that is: On time: is deliver at theestablished date.

26. Reliable: doesn´tcrash.

27. Complete: gooddocumentation, fulfillcustomerneeds.Theteam

28. Stagesfor software developmentRequirements AnalysisSoftware DesignImplementationTestingMaintenance

29. 1. Requirements AnalysisFind out what the client want the software to do

30. 2. DesignPlanning the software solution

31. 3. ImplementationCode!!!

32. 4. TestingExecuting the application trying to find software bugs

33. 5. MaintenanceAny activity oriented to change an existing software product.

34. What!?