Maintenance, and Enhancement

In this position paper, we propose the notion of just-in-time concern modeling. As some concerns emerge late in the software life cycle and can be ephemeral, we argue that mechanisms should be available to capture descriptions of concerns as they emerge or become relevant. Based on our experience with the FEAT concern modeling and analysis tool, we highlight the essential characteristics, benefits, and pitfalls of just-in-time concern modeling at the source code level. Categories and Subject Descriptor