There is a new international journal, which is most relevant for information systems engineering including enterprise modeling, the International Journal of Information System Modeling and Design. The editor in chief is Remigijus Gustas at Karlstad University, who also worked at SYSLAB a few years ago. I have a role as associate editor of the journal.
“The International Journal of Information System Modeling and Design (IJISMD) publishes original research on the advances of modeling methods in system analysis and design. IJISMD promotes enterprise modeling which is bridging the communication gap among business managers and system designers. This journal examines the theoretical foundations of new generation graphical design methods, models, and tools to facilitate reasoning on compositions of systems and services across organizational and technical system boundaries.” (from the home page of the journal)