HLA on top of CORBA Common Object Services

The simulation oriented world of HLA and industrial oriented world CORBA are moving together. Many CORBA-based applications do have the requirements to provide a time-synchronised service quality and also a model-based communication architecture. This is supported by an approach from the OMG to define the HLA as a part of the standard services. On the other side, the typical service level for average industrial CORBA application is the "Common Object Service (COS)" level. The paper gives also an overview of a study based on a prototype implementation, about the mapping of the HLA services onto standards COS services. The paper presents a component based HLA service organisation by utilising the standard common object services defined by the OMG. This allows the piece-wise usage of the HLA functionality, which is important to provide a smooth migration way into the HLA service world ("light-weight HLA"). It also demonstrates ways to connect the HLA world with non-simulation CORBA applications.