William C. Stratton

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The JHU/APL Space Department develops Missions Operations Center (MOC) system software for all JHU/APL-supported NASA missions using a shared software architecture called Common Ground. The software architecture is 10 years old and difficult to maintain for current missions and to evolve for reuse in future missions. The Software Architecture Visualization(More)
There are many technical challenges in ensuring high life-time quality of NASA’s systems. Some of NASA’s software-related challenges could potentially be addressed by the many powerful technologies that are being developed in software research laboratories. However, most such research technologies do not make the transition from the research lab to the(More)
Systems often collaborate to form a system-of-systems (SoS) and together fulfill some larger task. Correctness and performance issues in the interaction between participating systems are frequent occurrences and decrease the reliability of the entire SoS. We are currently developing an analysis framework to automatically compare a model of the desired(More)
The Johns Hopkins University Applied Physics Laboratory (JHU/APL) Ground Applications Group (SIG) develops Mission Operations Center software systems for all satellite missions supported by the JHU/APL Space Department. For efficiency, SIG designs these ground software systems to maximize reuse of existing software components, components include Commercial(More)
he Near Earth Asteroid Rendezvous (NEAR) ground system was designed in keeping with the intent of the Discovery program to reduce development and mission operations costs for planetary missions. To do this, several nontraditional steps were taken in its development to increase efficiency: combining the ground system development projects for integration and(More)
This prospective study investigates the utility of a labor risk assessment instrument for the prediction and management of the low Apgar infant in the community hospital setting. Two hundred and fifty patients in labor were managed with a protocol involving initial and ongoing risk assessment throughout the course of labor and delivery. Patients scored as(More)
Unanticipated perinatal catastrophe in a rural community hospital is responsible for the deaths of many potentially salvageable infants. An intrapartum risk scoring system was designed to help anticipate infants needing skilled resuscitation at the rural community hospital. Thirty-three percent of infants whose mothers scored as high risk (greater than or(More)
With the advent of wearable computing, cheap, commercial-grade sensors have broadened the accessibility to real-time physiological sensing. While there is considerable research that explores leveraging this information to drive intelligent interfaces, the construction of such systems have largely been limited to those with significant technical expertise.(More)
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