The LNCS Transactions on Modularity and Composition are devoted to all aspects of software
modularity and composition methods tools and techniques covering requirement analysis
design implementation maintenance and evolution. The focus of the journal also includes
modelling techniques new paradigms and languages development tools measurement novel
verification and testing approaches theoretical foundations and understanding interactions
between modularity and composition. This the first issue of the Transactions on Modularity and
Composition consists of two sections. The first one guest edited by Patrick Eugster Mario
Südholt and Lukasz Ziarek is entitled Aspects Events and Modularity and includes papers
focusing on context-oriented software development specifications for even-based systems and
development of modular software. The second section guest edited by Gary T. Leavens contains
journal versions of selected papers from Modularity 2015 which was held in March 2015 in Fort
Collins Colorado USA. Topics covered by the papers in this section include software
unbundling layer activation in context-oriented programming modular reasoning in event-based
languages and dynamic dispatch for method contracts using abstract predicates. The paper
'Dynamic Dispatch for Method Contracts Through Abstract Predicates' is published open access
under a CC BY 4.0 license at link.springer.com.