This deliverable presents the initial version of the MUSA IDE for the security-aware design of multicloud
applications. More particularly, the document describes the MUSA Modeller which supports
the modelling of multi-cloud applications taking into account their security concerns. The MUSA
Modeller enables: (a) the multi-cloud secure application components design and (b) embedding the
security needs inside the application software following a non-intrusive approach. The document is
the technical report that accompanies the actual initial software prototype of the MUSA IDE that has
been designed and developed following the architecture and implementation described herein. Note
that the initial version of the MUSA SLA Generator that supports the SLA specification and
composition of security requirements together with functional needs was already described in
deliverable D2.1.