Change Wings on the Fly

Explore a case study on replacing a legacy system handling a 50 million euro turnover with zero downtime in this conference talk from NDC Oslo 2022. Learn how a Norwegian fintech startup acquired the UK's third-largest gift card company and successfully substituted their tech systems within a year. Discover strategies for building a minimal yet effective solution that allows for future expansion. Gain insights into prioritization processes, technical implementation, and the importance of shared understanding. Understand how twisting product questions can lead to building just enough while creating potential for future enhancements. See how this approach simplifies work, enables modern and user-friendly solutions, and facilitates seamless system transitions without service interruptions.

Introduction
Acquisition and integration of systems
Inspiration
Personas
To do list
Rebuilding software
Train service example
Prioritization process
How we did it technically
How we replaced the functionality
Explicit steps
Imagine 19th century
Imagine 21st century
Abstract
Descriptions
Why do I do this
Main principles
Implementation
Evolution
Finding a compromise
Low fidelity wireframes
Encourage honest feedback
Join walkthroughs
Shared understanding
Summary