Phoenix Ambulatory Blood Pressure Monitor Project
4/22/2007 Meeting Notes




* Larry: He has been working on website design and has others using the blood pressure monitor. Been working with Franz to get specific information out of the IRB. No one has done this before; their current rules require that the researcher can talk to them in person to assure that they understand the risks of the risks. Bob noted that there are always subject needs that are not understood by researchers. Chris noted that in requirements analysis, there is an assumption that software engineers are in the same room as the analyst is in the same room as the stakeholder. IRB's main concern is assuring that there is informed consent in the subjects and the interaction between the researcher and the subjects. We discussed that this is done with patient management systems, but the patients have a strong relationship with the data acquisition process, so they give their consent. What about those who don't have such a strong relationship to the data collection organization, i.e. Arbitron or Neilson in measuring entertainment preferences? The IRB is involved whenever data is collected for potential publication. We asked if members of the IRB were using a monitor they might be predisposed to help us. In such a case, the IRB member would have to recuse themselves, and it might create an adverse reaction. The IRB is protection against causing harm and we shouldn't try for a quick solution, but a good solution that satisfied their mission and provided a good research outcome. Chris thought that separating the data collection system from an identity management system could satisfy these needs, so that the data collection system never knows the personal identify. We thought that sounded like an encryption key server. Germaine said they only needed to distinguish the data from another data point and to match with another data point from the same person for longitudinal studies, and for follow up. Larry called it "identify escrow".
* Bob: Has been thinking about hardware requirements. Wants blood pressure measurement, and max and min. Chris thinks that we need a requirements specification. Can formalize the systems requirements specification so that we can spawn off more subprojects. Or work on the Java prototype of the Sphygmochron. The project seems to need a requirements and Chris would like to do that so that we can effectively engage volunteers without them attending meetings in the Twin Cities. Larry asked if we were ready to write a requirements specification. Are the prototypes of the "unsolved problems" far enough along, like sensors and power? Chris thought they were, and it is a matter of trade-offs. Larry: Can we supply the functionality with something as simple as a micro. Chris: It's just a matter of documenting what we know. Requirements are needed to develop prototypes and prototypes lead to changes in requirements. It is an iterative process among systems requirements specification and architecture. You need architecture to allocate requirements and requirements are need to validate the architecture and complete it.
* Chris: what he wants to use him for is someone to review the requirements. Someone who has the advantage of being a quality check on the requirements and g3etting him involved in the project.
* Dewayne: Franz requires that he have fun, but he isn't having fun. He wants to use Java to analyze data but he hates it. Chris will look at it. It doesn't plot his data. He publishes the data plot of the Sphygmochron and send it to the printer. He has magnetic field data for the last 5-7 years. Likes the idea of Java's buffered image, but wants to preview it. Java only prints to the printer at 72 dots per inch. Chris asked if he is using the Sun JDK latest. Has he used any 2D plotting programs like Matlab. Dwaynes problem in Java is, "Do you have a buffered image that you can send to the printer. We suggested SciLab, an open source alternative to MatLab.
* Mary Jo: She just returned to the Twin Cities. She met Inanc, they made a board, talked about two inputs, their project is due 5/27, didn't have access to LabView and MatLab, and 500G external HD. She gave them her data, they want to solve the constants in another way, they don't have the exercise data, just the "at rest", they need more data. There were 5 people at the sensor meeting.



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