@article {Hannay2020ModelingAS,
	title = {Modeling and Simulation as a Service infrastructure capabilities for discovery, composition and execution of simulation services},
	journal = {The Journal of Defense Modeling and Simulation: Applications, Methodology, Technology},
	volume = {18},
	year = {2020},
	pages = {5 - 28},
	publisher = {SAGE journals},
	abstract = {Modeling and Simulation as a Service (MSaaS) embodies the idea that simulations should be composed quickly for the task at hand from loosely coupled shared components, simulation services, in a cloud-based environment. These simulations are then offered, as composed simulation services, to human and technical consumers. Instrumental to this, is functionality that lets a simulation operator discover and compose simulation services and execute the composition. We describe this functionality in terms of what we call MSaaS infrastructure capabilities. Following the idea of stepwise refinement, the discovery and composition of simulation services can be done at design time using implementation-independent information about simulation services and at implementation time using implementation-specific information about simulation services. The execution environment can also be set up at design time and at implementation time. We therefore describe the MSaaS infrastructure capabilities in terms of how they are used on both implementation-independent and implementation-specific service information. By doing these elaborations, we intend to gain greater insight into how to perform simulation service discovery, composition, and execution. We conclude that although much of the required functionality for a MSaaS infrastructure is available through existing platforms and frameworks, it is necessary to offer this functionality as services, alongside (composed) simulation services, to fulfill the MSaaS vision.},
	doi = {10.1177/1548512919896855},
	author = {Jo Erskine {Hannay} and van den Berg, Tom and Gallant, Scott and Gupton, Kevin}
}
@inproceedings {Hannay-vandenBerg-2017,
	title = {The NATO MSG-136 Reference Architecture for M\&S as a Service},
	journal = {Proc. NATO Modelling and Simulation Group Symp. on M\&S Technologies and Standards for Enabling Alliance Interoperability and Pervasive M\&S Applications (STO-MP-MSG-149)},
	year = {2017},
	publisher = {NATO Science and Technology Organization},
	abstract = {The Allied Framework for Modeling and Simulation (M\&amp;S) as a Service (MSaaS) is proposed by NATO MSG-136 as a permanent service- and cloud-based M\&amp;S ecosystem for use by NATO and partner nations. The framework is designed to aid stakeholders to utilize state-of-the-art service-oriented and cloud-based methodology and technology to achieve interoperability between participating simulation systems and ensuring credibility of results. This paper presents the reference architecture that is currently developed as part of the technical concept for the Allied Framework for MSaaS. The reference architecture is structured on The Open Group SOA Reference Architecture, while its contents is supplied via the NATO C3 Taxonomy in the form of architecture building blocks and architecture patterns. The MSaaS Reference Architecture is not a final product. It will change over time as new architecture building blocks and patterns are identified and added, and existing ones modified and improved.},
	isbn = {978-92-837-2137-6},
	author = {Jo Erskine {Hannay} and van den Berg, Tom}
}
