Invited Talk (at the University of Warwick): The daily software engineering life - How to be prepared

Transcript

1. The daily software engineering life - How to be prepared - Martin Lippert, VMware mlippert@vmware.com @martinlippert
2. Martin Lippert Lead of Spring Developer Tools at VMware Founder of it-agile GmbH Developer, Architect, Coach, Technical Lead
3. - 1 - Software Engineering Fundamentals
4. Writing something that runs is easy Writing good software is hard
5. Essential: Programming Languages Algorithms Data Structures
6. The „old“ parts: the difference between ArrayList and LinkedList? how does a HashMap work? how does a relational database look like? The „new“ parts: how does MapReduce works? what about distributed and messaging systems? what are key/value stores, document and graph dbs?
7. O(n)
8. Concurrency is becoming more and more important
9. Deep understanding necessary e.g. Who knows how the Java Memory Model works? What does „notify()“ mean? What is garbage collection? How does it affect my programming?
10. Parallelism is becoming more and more important
11. Different thinking necessary e.g. parallel vs. optimized non-parallel algorithms distribution - latency - redundancy - fault tolerance
12. „comments lie - code doesn‘t“
13. Modularity Dependency Management remember? don‘t let your code look like this...
14. SOLID principles Single responsibility principle Open/closed principle Liskov substitution principle Interface segregation principle Dependency inversion principle http://en.wikipedia.org/wiki/SOLID_(object-oriented_design)
15. - 2 - Domain Driven Engineering
16. ! Knowing the technology is essential - but it is not enough
17. Is the software correct? But what does it mean? Correct?
18. You need to understand the domain, the problem, and the context (the „why“)
19. Agile Software Development Extreme Programming Scrum Kanban - Inspect and adapt -
20. - 3 - Daily Engineering
21. Working with existing code reading and understanding refactoring code regression testing
22. Test-Driven Development Red - Green - Refactor
23. Programming in small steps for all kinds of problems
24. „What you don‘t ship doesn‘t exist“
25. Continuous... Integration Delivery Deployment
26. DevOps
27. must read...
28. Thank you very much! QA Martin Lippert mlippert@vmware.com @martinlippert