Scaling Agility: The Technical Angle
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Flavius Stef discusses the complexities of scaling agile methodologies within software development, highlighting the need for effective team structures, modular designs, and the importance of quality in programming. He emphasizes the significance of feedback, documentation, and best practices to enhance performance and reduce deployment times. The document outlines various principles and strategies to successfully integrate agile practices with traditional processes.
![Program defensively
int low_quality_programming(char *input){
char str[1000+1]; // one more for the null character
// ...
strcpy(str, input); // copy input
// ...
}
int high_quality_programming(char *input){
char str[1000];
// initialize the string NUL characters
memset(str, 0, sizeof(str));
// …
// copy input, always leaving room for a NUL character
strncpy(str, input, sizeof(str) 1);
// ...
}](https://image.slidesharecdn.com/scaling-agility-technical-angle-1-140604050336-phpapp01/85/Scaling-Agility-The-Technical-Angle-19-320.jpg)
![Program defensively
int low_quality_programming(char *input){
char str[1000+1]; // one more for the null character
// ...
strcpy(str, input); // copy input
// ...
}
int high_quality_programming(char *input){
char str[1000];
// initialize the string NUL characters
memset(str, 0, sizeof(str));
// …
// copy input, always leaving room for a NUL character
strncpy(str, input, sizeof(str) 1);
// ...
}
More?
Check and sanitize inputs
Use assertions
Standardize exception handling](https://image.slidesharecdn.com/scaling-agility-technical-angle-1-140604050336-phpapp01/85/Scaling-Agility-The-Technical-Angle-20-320.jpg)
Scaling Agility: The Technical Angle
- 1. Scaling Agility: The Technical Angle Flavius Stef Mozaic Works 1.0
- 2. About me Flavius Stef In I.T. since 2002 Agile Coach and Trainer Was: – Web Developer – Project Manager – Scrum Master – Product Owner – Co-founder [email protected] (Twitter) @FlaviusStef
- 3. PRINCIPLES TEAMS STRUCTURE ARCHITECTURE AND DESIGN CONFIGURATION MANAGEMENT ALIGNMENT FEEDBACK
- 4. A word of warning #AgileTip: To some folks Scaling Agile is like Scaling Fish: They keep scraping off stuff until it looks like something they can swallow. @WoodyZuill “
- 5. PRINCIPLES ● Don't do it ● Short term versus long term ● Bigger teams need bigger processes ● Identify and fight bottlenecks ● Build quality in
- 6. PRINCIPLES TEAMS STRUCTURE ARCHITECTURE AND DESIGN CONFIGURATION MANAGEMENT ALIGNMENT FEEDBACK
- 9. Have code stewards Scalability Javascript UI Components Database performance REST API
- 12. Experts should have slack 90%John 85%Mike 115%Molly 45%Susan
- 13. PRINCIPLES TEAMS STRUCTURE ARCHITECTURE AND DESIGN CONFIGURATION MANAGEMENT ALIGNMENT FEEDBACK
- 16. Simplify designs HTML/CSS/Javascript/Ajax Servlet REST Services UI “Middleware” ... ... ... Custom RPC Engine ... ... ... Linux Kernel
- 17. Simplify designs HTML/CSS/Javascript/Ajax Servlet REST Services UI “Middleware” ... ... ... Custom RPC Engine ... ... ... Linux Kernel HTML/CSS/Javascript/Ajax Servlet REST Services UI “Middleware” ... ... ... ... Linux Kernel What's the simplest thing that could possibly work?
- 18. Be careful with published interfaces Service Facade Compatible Change Basic Integration Refinement Adapter Strategy
- 20. Program defensively int low_quality_programming(char *input){ char str[1000+1]; // one more for the null character // ... strcpy(str, input); // copy input // ... } int high_quality_programming(char *input){ char str[1000]; // initialize the string NUL characters memset(str, 0, sizeof(str)); // … // copy input, always leaving room for a NUL character strncpy(str, input, sizeof(str) 1); // ... } More? Check and sanitize inputs Use assertions Standardize exception handling
- 21. PRINCIPLES TEAMS STRUCTURE ARCHITECTURE AND DESIGN CONFIGURATION MANAGEMENT ALIGNMENT FEEDBACK
- 22. Reduce build creation time How long would it take your organization to deploy a change that involves just one single line of code? Do you do this on a repeatable, reliable basis? Mary Poppendieck, Implementing Lean Software Development “
- 23. Separate release cycles JS UI Components Releases Product Release
- 24. Use feature toggle <toggle name="petSurvey"> <p>Take our new <a href = 'petSurvey'>pet survey</a></p> </toggle> Example from: http://martinfowler.com/bliki/FeatureToggle.html
- 25. PRINCIPLES TEAMS STRUCTURE ARCHITECTURE AND DESIGN CONFIGURATION MANAGEMENT ALIGNMENT FEEDBACK
- 29. Create communities Communities of practice Internal Q&A site Hackathon
- 31. Run architecture workshops At start of release, or at start of sprint
- 32. PRINCIPLES TEAMS STRUCTURE ARCHITECTURE AND DESIGN CONFIGURATION MANAGEMENT ALIGNMENT FEEDBACK
- 33. Invert the testing pyramid
- 34. Run system tests continuously time time qualityquality Waterfall Agile SP 1 SP 2 SP 3 SP 4 SP 5 SP 6 SYSTEM TESTS
- 35. Build a deployment pipeline Commit Automated acceptance UX testing User acceptance Scalability testing git push automated manual Build (war, gems, minified js/css) Run unit tests Static analysis Run component tests Deploy artifacts CI Server monitors launches git push Manual test environments Automated test environment
- 36. THANK YOU! QUESTIONS? [email protected] I'm on Twitter, LinkedIn, FB
- 37. Image credits ● https://flic.kr/p/8zLKRb ● List designed by TukTuk Designz from the Noun Project ● http://en.wikipedia.org/wiki/File:Deployment_Diagram.PNG ● http://en.wikipedia.org/wiki/File:CheckEmail.svg ● http://blog.adrianbolboaca.ro/2013/01/architectural-kata/img_0507/ ● http://3.bp.blogspot.com/-gU9fWdBfB1Y/Ul3861lVk1I/AAAAAAAALpA/J2YRGrQH