We breaks as programs change. We introduce a tracing and analysis framework that leverages aspect-oriented programming and reflection to (a) capture partial or full execution traces with high-level semantics, (b) compare and analyze traces across program versions to aid in understanding the affects of code changes on program execution.

1. Aspect-based Introspection
and Change Analysis for
Evolving Programs
Kevin Hoffman, Murali Krishna Ramanathan,
Patrick Eugster, Suresh Jagannathan

2. Outline
 Problem overview
 Review of dynamic impact analysis
 New approach overview
 Implementation details
 Illustration
 Performance measurements
 Conclusions
Kevin Hoffman et al, RAMSE-07 @ ECOOP-07 -2-

3. Problem Overview
 Evolvable systems should be
 Able to easily change their behavior over time
 Free from errors introduced by such change
 Quick to detect and recover from any such errors
Kevin Hoffman et al, RAMSE-07 @ ECOOP-07 -3-