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Keeping software development ecosystem healthy

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In today’s agile and rapidly changing environment we may overlook important attributes of software development process. Design of the software and surrounding infrastructure are one of those things that usually do not get enough attention. Quality of design directly impacts quality of software and should follow development process all the way from the initial idea till the product end-of-life.

In this presentation I'm sharing what works for us to keep software ecosystem healthy, what challenges we are facing and how we are surviving them.

Published in: Software, Design
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Keeping software development ecosystem healthy

  1. HEALTHY KEEPING SOFTWARE DEVELOPMENT ECOSYSTEM Dainius Mežanskas © 2015 Software Architect @ Intermedix Corp. dainius.mezanskas@gmail.comwww.agileturas.lt/kaunas intermedix.com kaunas-jug.lt
  2. DAINIUS MEŽANSKAS § Telecommunications, E-commerce, Health Care, Insurance, E-learning (17+ years) § Developer, Architect, Team Lead, IT Trainer § Software Architect at Intermedix Corp. § Co-Founder and Leader of Kaunas JUG
  3. DESIGN Software TEAM T-DEBT DEMO DESIGN
  4. CODE DESIGN ARCHITECTURE
  5. because of –ilities! DESIGN...is important! why?
  6. MAINTAINABILITY SECURITY TESTABILITY SCALABILITY EXTENSIBILITY USABILITY RELIABILITY VULNERABILITY -ilities ... and several dozens more system quality attributes
  7. -ilities ACCESSIBILITY ACCOUNTABILITY ACCURACY ADAPTABILITY ADMINISTRABILITY AFFORDABILITY AGILITY AUDITABILITY AUTONOMY AVAILABILITY COMPATIBILITY COMPOSABILITY CONFIGURABILITY CORRECTNESS CREDIBILITY CUSTOMIZABILITY DEBUGABILITY DEGRADABILITY DETERMINABILITY DEMONSTRABILITY DEPENDABILITY DEPLOYABILITY DISCOVERABILITY DISTRIBUTABILITY DURABILITY EFFECTIVENESS EFFICIENCY EVOLVABILITY EXTENSIBILITY FAILURE TRANSPARENCY FAULT-­TOLERANCE FIDELITY FLEXIBILITY INSPECTABILITY INSTALLABILITY INTEGRITY INTERCHANGEABILITY INTEROPERABILITY LEARNABILITY MAINTAINABILITY MANAGEABILITY MOBILITY MODIFIABILITY MODULARITY OPERABILITY ORTHOGONALITY PORTABILITY PRECISION PREDICTABILITY PROCESS CAPABILITIES PRODUCIBILITY PROVABILITY RECOVERABILITY RELEVANCE RELIABILITY REPEATABILITY REPRODUCIBILITY RESILIENCE RESPONSIVENESS REUSABILITY ROBUSTNESS SAFETY SCALABILITY SEAMLESSNESS SELF-­SUSTAINABILITY SERVICEABILITY SECURABILITY SIMPLICITY STABILITY STANDARDS COMPLIANCE SURVIVABILITY SUSTAINABILITY TAILORABILITY TESTABILITY TIMELINESS TRACEABILITY UBIQUITY UNDERSTANDABILITY UPGRADABILITY USABILITY All? https://en.wikipedia.org/wiki/List_of_system_quality_attributes
  8. CONTINUOUS  ATTENTION  TO   TECHNICAL  EXCELLENCE  AND  GOOD   DESIGN ENHANCES  AGILITY
  9. WHEN § LARGE CODE BASE § LONG LIVING PRODUCTS § DISTRIBUTED | BIG TEAMS § HIGH PRICE OF FAILURE § HIGH THROUGHPUT DESIGNIS IMPORTANT?Especiallyfor...
  10. § PRODUCTION CODE § TESTS § BUILDS | DEPLOYMENT | AUTOMATION § TOOLS § UX § PROCESSES DESIGNapplies to
  11. WHOIS RESPONSIBLE FOR DESIGN ?and quality
  12. IS RESPONSIBILITY TEAM DESIGN ...and every member should be responsible A
  13. DEFINE FOLLOW REVIEW IMPROVE
  14. TEAM ü TECHNICAL VIDEOS ü SELF-IMPROVEMENT SESSIONS ü CROSS-TEAM COMMUNICATIONS ü OFFICE LIBRARY IMPROVEMENT
  15. PAIRING üSTART WITH PAIRING ...and define guidelines üREVIEW RESULTS IN PAIR ...in case task were complex üRETURN TO PAIRING ...if there are new ideas or challenges
  16. GITFLOW 2 MEMBERS TO APPROVE WORKFLOW OFFLINE PAIRING PULL REQUESTS TWO HEADS ARE BETTER THAN ONE ...it is like ...are four even better?
  17. POC WORKING CODE CHUNKS … in separate repo ...fully of partially functional ...discuss with team DESIGN PROTOTYPE a.k.a. proof of concept
  18. EXAMPLARS PRODUCTION READY ARTIFACTS CREATED FROM SCRATCH ...reusable examples ... or pre-generated
  19. ARCHITECTURE & DESIGN POTENTIAL BUGS COMPLEXITY DUPLICATIONS CODING RULES COMMENTS STATIC CODE ANALYSIS
  20. § MULTIPLE LANGUAGES § CROSS-TEAM RULES § TIME MACHINE § CODE COVERAGE § IDE PLUGIN § 60+ PLUGINS sonarqube
  21. INFORMATION RADIATOR sonarqube
  22. DEBT TECHNICAL
  23. TECHNICAL  DEBT  IS  A  METAPHOR THAT   REFLECTS  THE  EXTRA  DEVELOPMENT  WORK   THAT  ARISES  WHEN  THINGS  ARE  DONE   QUICKLY AND  DIRTY. The term was coined by Ward Cunningham in 1992.
  24. REASONS ✓ BUSINESS PRESSURELACKOF ✗ PROCESS, KNOWLEDGE or COLLABORATION ✗ ALIGNMENT TO STANDARDS ✗ TEST SUITE, DOCUMENTATION ✗ LOOSELY COUPLED COMPONENTS ✓ PARALLEL DEVELOPMENT ✓ DELAYED REFACTORING TECHNICAL DEBT
  25. § POSTPONED RELEASES § CONSTANT HOT FIXES § BEING SCARED ON CHANGING ANYTHING § LOW CODE COVERAGE § UNREDABLE CODE, EVIL HACKS ... what are your TD symptoms? SMYTOPMS TNECHAICL
  26. § CLEAN CONSTANTLY (10%+) § ATTACK NEXT T.D. § DEFINE OUTCOMES § EVALUATE CHANGES § CLEANUP RELEASES REMOVINGTECHNICAL DEBT of P 1
  27. PROPERTY vs. INJECTION CONSTRUCTORINJECTION
  28. § BETTERTESTABILITY § ALL DEPENDENCIES VISIBLE IN ONE PLACE § ENCAPSULATION IS PRESERVED § TOO MANY DEPENDENCIES - SRP IS BROKEN? CONSTRUCTOR DI
  29. “ Prediction is very difficult, especially if it's about the future. — Niels Bohr“ Great software is not built, it is grown. — Bill de hÓra“ There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. — ErnestHemingway “ Stay clean, stay agile. Encourage others. — Internetwisdom LAST...but not least
  30. THANK YOU Q&A Dainius Mežanskas © 2015 Software Architect @ Intermedix Corp. dainius.mezanskas@gmail.comwww.agileturas.lt/kaunas intermedix.com kaunas-jug.lt

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