Karoly Bosa & Abdelkader Hameurlain 
Transactions on Large-Scale Data- and Knowledge-Centered Systems XXX 
Special Issue on Cloud Computing

This, the 30th issue of Transactions on Large-Scale Data- and Knowledge-Centered Systems, contains six in-depth papers focusing on the subject of cloud computing. Topics covered within this context include cloud storage, model-driven development, informative modeling, and security-critical systems.