The LNCS journal Transactions on Aspect-Oriented Software Development is
devoted to all facets of aspect-oriented software development (AOSD)
techniques in the context of all phases of the software life cycle, from
requirements and design to implementation, maintenance and evolution.
The focus of the journal is on approaches for systematic identification,
modularization, representation, and composition of crosscutting
concerns, i.e., the aspects and evaluation of such approaches and their
impact on improving quality attributes of software systems. This volume,
the 12th in the Transactions on Aspect-Oriented Software Development
series, contains one regular paper, on modular reasoning in
aspect-oriented languages from a substitution perspective, and four
extended, improved papers selected from those presented at Modularity
2014. Topics covered include novel dynamic semantics through delegation
proxies, modularity potential detection based on co-change clusters,
improvements in reusability for components of semantic specifications of
programming languages, and probabilistic model checking applied to
dynamically generated members of a product line.