This document provides an introduction to software development, including: - An overview of the software development life cycle, from requirements discovery through testing. - Descriptions of different programming languages from low-level machine languages to high-level languages. - Factors to consider when choosing a programming language such as the problem domain and available communities. - The importance of software testing throughout the development process. - Recommendations for learning software development through practicing with real problems and using online courses and tutorials.

1. Intro to Software Development

2. Introduction
• Who are we?
• What do we do?
• Why do we do this?

3. Agenda
• Software Development Life Cycle
• Discovering Software Requirements
• Programming Languages
• Choosing a Language
• Software Development
• Software Testing
• What next?

4. SOFTWARE DEVELOPMENT LIFE CYCLE

7. Waterfall

8. Waterfall Development

9. Agile

10. Agile Development

11. DISCOVERING SOFTWARE REQUIREMENTS

15. Traditional Requirements Discovery

16. Use Cases

17. Agile Requirements Discovery

18. Traditional vs. Agile Requirements

19. SOFTWARE DESIGN

20. Software Design Process

22. PROGRAMMING LANGUAGES

23. Generations
● Machine Language (1GL)
o Very low level, tedious and error-prone
● Assembly Language (2GL)
o Usually specific to a particular processor
family and environment
● High-level Languages (3GL)
o Independent of a particular type of computer
hardware
● Fourth Generation Languages (4GL)
o Provides a higher level of abstraction than
3GLs
o Closer to natural human languages
● Natural Language
o Ambiguous and hard for computer to
understand

26. Choosing a Language

27. Useful Criteria
● Best suited to the problem you
are trying to solve
● Widely available
● Widely used

28. ● Problem Domains
o Dynamic web sites and applications
o Web Plugins and widgets
o Web based games
o Automation of system admin tasks
o Popular choices for learning programming
● Communities
o http://phpcommunity.org
o https://www.python.org/community/
o https://www.ruby-
lang.org/en/community/
o https://plus.google.com/communities/100
875929141897651837

29. ● Problem Domains
● Client/server applications and APIs
● Mobile applications and games
● Communities
o http://www.meetup.com/Londonjavaco
mmunity/
o http://www.csharpforums.net
o http://androidcommunity.com

30. ● Problem Domains
o High performance applications
o Complex computations
o Embedded systems
o Computer and console games
o Mobile applications and games
● Communities
o C - http://www.cprogramming.com
o C++ -
https://plus.google.com/communities/11
6007775542700637383
o Objective-C -
https://plus.google.com/communities/10
3997592872376747208

31. Questions?

32. SOFTWARE TESTING

33. Verification vs. Validation

34. Types of Software Testing

35. V-Model

36. Software Testing in the SDLC

37. Traditional vs. Agile Testing

38. Why Software Testing?

39. SUMMARY

40. In Summary...
● Learning Software Development involves
a lot more than just learning a
programming language…

43. Aim of this Community
● Build a vibrant community of Software
Professionals
● Help you Learn Software Development via
o Free Programming 101 Sessions
o Low-cost Hands-on Workshops
o Coaching & Mentoring
o Virtual Internships?

44. Recommended Approach
● Find an interesting problem to solve
● Choose a language and learn the
fundamentals and language features
● Practice, practice, practice…..
● Have fun!

45. Other Learning Resources
● Intensive Courses
o http://www.makersacademy.com
o https://generalassemb.ly
● Online courses
o https://www.coursera.org/
o https://www.udacity.com/
o https://developers.google.com/university/
● Online tutorials
o https://www.khanacademy.org/
o http://www.codecademy.com
● Other online resources
o http://www.w3schools.com
o http://learncodethehardway.org/

46. Questions?