Live, Virtual, and Constructive (LVC) technologies provide a powerful range of capabilities that the distributed training community enjoys in support of its broad spectrum of training needs. The fundamentals of this LVC capability were built over two decades ago at a time when the modeling and simulation (M&S) community was arguably ahead of commercial information systems, especially in terms of distributed computing and networking. With the advent of many web-based technologies the LVC community now finds itself attempting to integrate new technologies with legacy architectures. Due to the flexibility of the new technologies as well as the inventiveness of the LVC community, this approach has had some success, but these approaches continue to require specialized skillsets and can be costly to establish and maintain. The Defense M&S Coordination Office (DMSCO) has sponsored an effort to describe and prototype selected features of a next generation architecture that leverages recent and emerging technology more directly. This paper describes a framework called Osseus to accomplish these goals. Osseus incorporates desired next generation characteristics such as 1) more open and flexible interoperability between disparate systems; 2) the ability for relatively untrained users to fill in functionality gaps between available systems by dynamically injecting behavioral changes into the LVC environment; 3) the ability to connect services with granularity smaller than an application to increase the capability of the environment; 4) a more accessible means of composing distributed training capabilities for an educated, but non-specialist trainer; 5) data filtering to optimize or reduce data transmission over the network; and 6) centralized data management to facilitate tools such as visualization, data collection, and analysis. This paper discusses architectural aspects of Osseus and selected prototype results which include the integration of OneSAF with an example virtual system.