This SBIR Phase 2 project will produce a software service infrastructure
that enables most modeling and simulation (M&amp;amp;S) activities  from
code development and compilation to runtime execution and collaboration
to be performed from a standard web browser across cloud- and
grid-enabled computing resources.  By addressing the security,
scalability and virtualization challenges that have heretofore prevented
service-centric M&amp;amp;S from being practical, this first-of-its-kind
Modeling and Simulation as a Service (M&amp;amp;SaaS) platform will allow
M&amp;amp;S users and developers alike to avoid many of the obstacles that
currently confound the delivery, accessibility and usability of
traditional, non-service-oriented M&amp;amp;S software. Building upon its
commercial Grid Software as a Service (GSaaS) platform, Parabon
convincingly demonstrated M&amp;amp;SaaS feasibility in Phase 1, as well as
its ability to deliver the M&amp;amp;SaaS solution, completing in Phase 1 a
Phase 2 solicitation goal of executing a NASA climate model across a
computational grid and displaying the results, all from a browser.  By
the completion of Phase 2, M&amp;amp;SaaS will support, at TRL 6-7,
browser-based source code editing, management of distributed
repositories, research collaboration via forums and wikis, and
virtualized build and runtime environments, all from within richly
featured and access-controlled web accounts.?  M&amp;amp;SaaS has the
potential to revolutionize how M&amp;amp;S is practiced across many
industries  including defense, finance and pharmaceuticals  however, its
benefit to NASA could be remarkable.  Because the NASA mission often
involves science that does not readily admit to direct experimentation,
M&amp;amp;S is often the only means by which to answer significant
scientific and engineering questions.  The productivity improvements and
cost reductions enabled via this new service paradigm will help NASA and
other organizations generate discoveries more readily and realize
significantly higher return on M&amp;amp;S investments.