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Sense
& Respond, Program Manager, Light-Armored Vehicles, United States
Marine Corps
We are carrying
out an evaluation of the Program Manager, Light Armored Vehicles
Sense & Respond Phase II demonstration prototype project. This
evaluation was conducted by researchers from the College of Information
Sciences & Technology at Penn State University. The evaluation
period was from the project's inception in the spring of 2005 through
May of 2007.
The objectives
of the evaluation project included the following:
1. Research
and development of a metrics framework for Sense & Respond and
similar ground vehicle autonomic logistics systems.
2. Identification and elaboration of Sense & Respond scenarios
of use including the user roles, tasks, system components, and metrics
associated with these scenarios.
3. Develop an evaluation methodology tuned to ground vehicle Sense
& Respond systems.
4. Develop software tools to support this and future integrated
system evaluation (and design).
5. An assessment of Sense & Respond project success as measured
along both subjective (perceptions and opinions) and objective (performance
and related events) dimensions.
6. Provide recommendations for Sense & Respond and similar Marine
Corps systems.
The Sense &
respond evaluation project has resulted in development of a rich,
empirically-grounded metrics framework for assessing, predicting,
and designing to the information needs of ground vehicle operators,
maintainers, commanders, and analysts. The metrics framework is,
we believe, unique in that it is tailored to specific roles, scenarios,
and system components and how they come together in support of the
Marine Corps mission and priorities.
We were instrumental
in the development of a set of scenarios describing how Sense &
Respond is designed to be used in LAV operations. These scenarios
were, we believe, essential to help project partners communicate
and design to the requirements of the system. Going forward these
scenarios should be revisited and refactored during the S&R
Phase II demonstration.
The evaluation
methodology and associated software tools provide a resource for
future evaluations of very large-scale distributed systems for ground
vehicles and other Marine Corps platforms. Central to the methodology
is the use of a metrics framework mapped to roles, scenarios, and
components. The methodology includes both analytical and empirical
techniques and focuses especially on the utility (benefits, costs,
risks) of a systems project relative to the organizational mission.
The evaluation
project experienced mixed success with respect to its core objective
of providing both subjective and objective measures of Sense &
Respond project success. While we are able to provide a relatively
thorough subjective account of the project, our objective measures
are lacking. This is primarily a function of the very limited amount
of time the system was actually available to end-users for trial.
Still, we believe that the evaluation results reported here represent
very valuable input to the future Sense & Respond and similar
projects. About 100 project stakeholders have been interviewed about
the utility of the Sense & Respond system and the most important
benefits and risks attending the project.
Finally, based
largely on extensive study of project stakeholder perceptions of
and experiences with Sense & Respond Phase II, we are able to
provide recommendations for the project going forward. Some of these
are included in this draft report but the full set of recommendations
is still pending analysis of data gathered late in the project lifecycle.
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