Software Architecture for Agile Enterprises

Stefan Tilkov takes a look at challenges, patterns and antipatterns of architectural work in practice—and derive concrete recommendations for the daily work of software architects.

Transcript

1. Software Architecture for Agile Enterprises INNOQ Online Technology Lunch,
 May 2020 Stefan Tilkov, @stilkov
 stefan.tilkov@innoq.com Image by Michael Gaida from Pixabay
2. www.innoq.com OFFICES Monheim Berlin Offenbach Munich Hamburg Zurich FACTS ~150 employees Privately owned Vendor-independent SERVICES Strategy & technology consulting Digital business models Software architecture & development Digital platforms & infrastructures Knowledge transfer, coaching & trainings CLIENTS Finance Telecommunications Logistics E-commerce Fortune 500 SMBs Startups
3. @stilkov architecture/ ˈɑr kɪˌtɛk tʃər /:
 noun A fancy word for the stuff you should not ignore
4. Modularization Autonomy End-to-end responsibility
5. Modularization Autonomy End-to-end responsibility
6. @stilkov Awesome Shop CMS Archive General Ledger Print Shop HR
7. @stilkov Awesome Shop CMS Archive General Ledger Print Shop HR Context
8. @stilkov Awesome Shop CMS Archive General Ledger Print Shop HR Invoicing Accounting Auth Catalog Checkout & Order Search
9. @stilkov Awesome Shop CMS Archive General Ledger Print Shop HR Invoicing Accounting Auth Catalog Checkout & Order Search Domain Architecture
10. @stilkov Invoicing Accounting Auth Catalog Checkout & Order Search
11. @stilkov
12. @stilkov Macro Architecture
13. @stilkov Ruby on Rails MySQL Java Spring Boot OSS Product COTS Java Spring Boot NodeJS ElasticSearch
14. @stilkov Ruby on Rails MySQL Java Spring Boot OSS Product COTS Java Spring Boot NodeJS ElasticSearch Micro Architecture
15. @stilkov Invoicing Accounting Auth Catalog Checkout & Order Search
16. @stilkov Coming up with the “right” system boundaries is an architecture activity that must be done first
17. @stilkov Managing dependencies is the most important ongoing architecture task
18. @stilkov You cannot decide to not have an architecture; if you don’t actively create it, be prepared to deal with the one that emerges
19. number of
 developers strength of 
 decoupling methods modules components μservices systems
20. From a layered system … System Logic Data UI Module Module Module
21. … to a system of systems System System System Logic Data UI Logic Data UI Logic Data UI
22. Pattern: Evolutionary Architecture @stilkov
23. Modularization Autonomy End-to-end responsibility
24. @stilkov Invoicing Accounting Auth Catalog Checkout & Order Search
25. @stilkov Invoicing Accounting Auth Catalog Checkout & Order Search
26. @stilkov Invoicing Accounting Auth Catalog Checkout & Order Search
27. @stilkov Invoicing Accounting Auth Catalog Checkout & Order Search Team Architecture
28. @stilkov Conway’s Law: Organization → Architecture “Organizations which design systems are constrained to produce systems which are copies of the communication structures of these organizations.”
 – M.E. Conway
29. @stilkov If your goal is to support autonomous teams, architecture is an essential ingredient
30. @stilkov Size is the #1 enemy of agility; keep your systems as small as you reasonably can (but no smaller)
31. @stilkov Extremely loose coupling requires very few rules, but those need to be enforced strictly
32. Pattern: Regulated Market @stilkov Troy / CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0)
33. Modularization Autonomy End-to-end responsibility
34. @stilkov Pattern: Autonomous Cells Stakeholder Stakeholder Stakeholder Biz Dev Ops Biz Dev Ops Biz Dev Ops
35. @stilkov Pattern: Autonomous Cells Stakeholder Stakeholder Stakeholder Biz Dev Ops Biz Dev Ops Biz Dev Ops
36. @stilkov Not every person has to become a full-stack developer, but every team should be a full-stack team
37. Recommendations
38. @stilkov 1. Establish autonomous teams as key ingredient
39. @stilkov 2. Manage the inter-dependencies of organization and architecture
40. @stilkov 3. Create evolvable structures and strictly maintain few rules
41. Krischerstr. 100 40789 Monheim am Rhein Germany +49 2173 3366-0 Ohlauer Str. 43 10999 Berlin Germany +49 2173 3366-0 Ludwigstr. 180E 63067 Offenbach Germany +49 2173 3366-0 Kreuzstr. 16 80331 München Germany +49 2173 3366-0 Hermannstrasse 13 20095 Hamburg Germany +49 2173 3366-0 Gewerbestr. 11 CH-6330 Cham Switzerland +41 41 743 0116 innoQ Deutschland GmbH innoQ Schweiz GmbH www.innoq.com Thank you! Any questions? Stefan Tilkov @stilkov
 stefan.tilkov@innoq.com
 +49 170 471 2625