Model-Driven Engineering (MDE) and Component-Based Software Engineering (CBSE) have been proven to effectively reduce software development complexity by (i) shifting the focus from source code to models and (ii) breaking down the set of desired features and their intricacy into smaller sub-modules, respectively. Moreover, the interplay of MDE and CBSE approaches is gaining recognition as a very promising means to boost the development of software systems by reducing costs and risks and shorten time-to-market. While several attempts to effectively combine MDE and CBSE have been documented, there are still unsolved clashes raising when exploiting interplay of MDE and CBSE, mostly due to mismatches in the related terminology as well as to differences in their basic essence. The goal of ModComp is to gather researchers and practitioners to share opinions, propose solutions to open challenges and generally explore the frontiers of interweaving between MDE and CBSE.