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Software Architecture for Agile Enterprises Digitale Leute Summit 2019 Stefan Tilkov, @stilkov
 stefan.tilkov@innoq.com Image by Michael Gaida from Pixabay

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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

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Modularization Autonomy End-to-end responsibility

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Modularization Autonomy End-to-end responsibility

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@stilkov Awesome Shop CMS Archive General Ledger Print Shop HR

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@stilkov Awesome Shop CMS Archive General Ledger Print Shop HR Context

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@stilkov Awesome Shop CMS Archive General Ledger Print Shop HR Invoicing Accounting Auth Catalog Checkout & Order Search

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@stilkov Awesome Shop CMS Archive General Ledger Print Shop HR Invoicing Accounting Auth Catalog Checkout & Order Search Domain Architecture

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@stilkov Invoicing Accounting Auth Catalog Checkout & Order Search

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@stilkov

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@stilkov Macro Architecture

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@stilkov Ruby on Rails MySQL Java Spring Boot OSS Product COTS Java Spring Boot NodeJS ElasticSearch

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@stilkov Ruby on Rails MySQL Java Spring Boot OSS Product COTS Java Spring Boot NodeJS ElasticSearch Micro Architecture

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@stilkov Invoicing Accounting Auth Catalog Checkout & Order Search

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@stilkov Coming up with the “right” system boundaries is an architecture activity that must be done first

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@stilkov Managing dependencies is the most important ongoing architecture task

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@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

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number of
 developers strength of 
 decoupling methods modules components μservices systems

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From a layered system … System Logic Data UI Module Module Module

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… to a system of systems System System System Logic Data UI Logic Data UI Logic Data UI

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Pattern: Evolutionary Architecture @stilkov

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Modularization Autonomy End-to-end responsibility

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@stilkov Invoicing Accounting Auth Catalog Checkout & Order Search

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@stilkov Invoicing Accounting Auth Catalog Checkout & Order Search

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@stilkov Invoicing Accounting Auth Catalog Checkout & Order Search

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@stilkov Invoicing Accounting Auth Catalog Checkout & Order Search Team Architecture?

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@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

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@stilkov If your goal is to support autonomous teams, architecture is an essential ingredient

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@stilkov Size is the #1 enemy of agility. Keep your systems as small as you can.

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@stilkov Extremely loose coupling requires very few rules, but they need to be enforced strictly

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Pattern: Regulated Market @stilkov

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Modularization Autonomy End-to-end responsibility

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@stilkov Pattern: Autonomous Cells Stakeholder Stakeholder Stakeholder Biz Dev Ops Biz Dev Ops Biz Dev Ops

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@stilkov Pattern: Autonomous Cells Stakeholder Stakeholder Stakeholder Biz Dev Ops Biz Dev Ops Biz Dev Ops

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@stilkov Not every person has to become a full-stack developer, but every team should be a full-stack team

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Recommendations

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@stilkov 1. Time to market requires supporting architecture

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2. Establish autonomous teams as key ingredient

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@stilkov 3. Create evolvable structures

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www.innoq.com innoQ Deutschland GmbH 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 innoQ Schweiz GmbH Gewerbestr. 11 CH-6330 Cham Switzerland +41 41 743 0116 Thank you! Stefan Tilkov @stilkov
 stefan.tilkov@innoq.com
 +49 170 471 2625