Legacy systems create a web of operational and technical dependencies that constrain new feature development and increase costs.
A project's central "core" module often accumulates excessive responsibilities and dependencies over time, creating a maintenance bottleneck.
Black holes are modules with oversized APIs, high technical debt, and excessive responsibilities that attract more dependencies over time.
A multi-year refactoring effort replaced legacy configuration services with Spring Cloud Config by using adapters and systematically removing old dependencies.
Creating a "boxed" local development environment by mocking all external dependencies allows for independent and faster feature development.
A mocked environment accelerates development, improves testing consistency, and empowers frontend teams to drive API design with backend counterparts.
Focus on high-quality, minimal documentation and strategically choose which technologies to modernize based on value versus effort.
Treat technical debt like a mortgage by accepting it to deliver value, but consistently pay it down by focusing on major issues.
Neglecting IT maintenance leads to poor user experiences and dangerously slow adaptation, posing a significant threat to the business model.
To prepare for new technologies, legacy systems must be modernized to support near-real-time data processing and user expectations.
46:48Stefan Priebsch
57:38Bernd Ruecker
54:39Alexander Günsche
58:23Luka Samaržija & Ivan Sokol
43:13Carola Lilienthal
21:19Maik Wietheger & Jan-Christoph Schlieker
1:01:30Henning Schwentner
50:06Jens Happe
Jobs that call for the skills explored in this talk.
Hays
Hengersberg, Germany
Huk Coburg
Coburg, Germany
ISR Information Products AG
Rocken AG
Burgdorf, Switzerland
Skalbach Gmbh
Böblingen, Germany
DRK-Blutspendedienst Baden-Württemberg – Hessen gGmbH
Mannheim, Germany
Finanz Informatik
Frankfurt am Main, Germany
Lorenz Life Science Group
Frankfurt am Main, Germany
Wipro Limited
Zürich, Switzerland
