DDD Europe 2026 - Program

Residuality: Real World Comparative Case Studies

DDD Europe - Talk (50min)

Speakers

Andrea Magnorsky and Chris Simon

Andrea MagnorskyChris Simon
Description

Residuality Theory has disrupted the Software Architecture scene, presenting a new approach to architecture based on the complexity sciences and random simulation. It aims to help architects to design an architecture that is statistically more resilient to a broader range of possible futures.

In parallel, practices like the Architecture Advice Process and the application of Systems Thinking consider architecture through the lens of how organisations practically make and execute architectural decisions.

Are these approaches compatible?

We aim to understand how using Residuality fits into our toolbox, by reporting our findings in using it in two different settings. As practitioners, we have been wondering: How do we take this architecture and use it to deliver business value? How do we communicate the decisions that led to it, when the design process is so new and unfamiliar to the broader organisation? How do we wrestle with the inevitable trade-offs that must be made when building real operational systems based on this vision of a more adaptive capacity?

Drawing on two comparative experiences applying Residuality in the design and modernisation of systems in two separate businesses, we will share lessons learnt and thoughts on how to practically make use of this new approach.


About Andrea Magnorsky

Andrea Magnorsky is known for her expertise in software architecture, design and functional programming. She helps organisations adopt functional paradigms, design resilient, scalable systems and build them. In line with her consulting work, Andrea created Bytesize Architecture Sessions, compact, structured workshops that guide teams through quick, collaborative modelling of a system slice, fostering shared understanding and better architectural decisions. Her background spans game development, high‑traffic e‑commerce platforms, enterprise companies such as Atlassian, Workday, etc as well as consulting work for companies like ITV, Santander and SirusXM giving her a broad perspective on both technical depth and business impact.

About Chris Simon (he/him)

Chris is a technology coach and advisor helping technology teams drive business success. His focus is on helping startups realise their vision and new CTOs flourish in their roles. He also supports executives & boards with strategic technology advice, and engineering teams with training, mentoring and consulting in architecture, quality, domain-driven design and test driven development. He is a regular meetup & conference speaker (https://chrissimon.au/speaking/) and to support teams using Domain-Driven Design, he recently launched https://contextive.tech & co-founded the DDD Australia meetup and ADAConf (https://adaconf.org) conferences. He is the technical co-founder of https://www.inloop.com.au, home of Australian Fintech success stories https://www.flexischools.com.au and https://www.lanternpay.com (recently acquired by NAB).