Treating Legacy System in Practice

Explore practical approaches for handling legacy systems in this 43-minute conference talk from GOTO Night 2013. Gain insights from Eberhard Wolff, a Fellow at innoQ, as he shares concrete strategies to improve code quality and implement necessary changes in existing codebases. Learn about management perspectives, refactoring techniques, and the concept of technical debt. Discover the importance of quality investment, remediation, and test coverage. Examine architectural considerations, including software structure, deployment units, and isolation layers. Understand how to effectively refactor code bases and implement unit tests. Benefit from Wolff's experience with reviews and work on large applications to tackle the challenges of legacy system maintenance and improvement.

Intro
Why talk about legacy systems
Three perspectives
Management perspective
Refactoring
Payoff
Technical Depth
The Mantra
Quality Investment
Remediation
Test Coverage
STD Idea
Architecture
Software
Code Base
Deployment Units
Isolation Layer
Unit Tests
Refactoring Code Base
Summary