Web-based data visualization tools

Question

Hi.  I originally posted this question to the LV forum, but I am going to modify my question because I think Diadem may be a good solution for us.
I am embarking on a interesting research project that will involve recording lots of physiological signals from patient monitors in a hospital.  I will be recording signals like BP, spO2, Pulserate, ECG, etc.
Right now, my main design concern is how to give clinicians access to the data after it is recorded.  I think Diadem might be a good solution, but I really want it to be web-based.
Here is my wish list:
- Store the data securely, where access can be restricted and controlled (e.g. user must login)
- Allow users (who are granted access) to login and view historical data via a simple web browser
- Allow users to pick datasets amd zoom, scroll, etc. 
- Allow user to view data in stacked plots (e.g. so they can see multiple signals simultaneously on the screen and scroll the time axis)
- Allow user to annotate data (e.g. add comments at specific timestamps)
Do you have any reccomendations for a web-based data visualization tool like this?  Do you think Diadem meet my needs?

Answer 1

Hello J Osborne,
You application sounds like a great fit for DIAdem and the DataFinder, with the exception of the Web-based nature of the application. We currently do not offer a native web interface to DIAdem and it's features, but there are ways to accomplish that using established technologies such as remote clients ...
Here are my comments to your individual questions:
- Store the data securely, where access can be restricted and controlled (e.g. user must login)
* The DataFinder Server (which works with DIAdem) technology can be used to give specific users access to only data they are supposed to see, so we can cover this part of your application
- Allow users (who are granted access) to login and view historical data via a simple web browser
* This would have to be achieved via a remote client solution, since DIAdem offers no native Web client
- Allow users to pick datasets amd zoom, scroll, etc. 
* This is something that the DIAdem NAVIGATOR and DIAdem VIEW are very good at, including the ability to search for data sets based on specific key words, patient names, etc. and the ability to look at multiple data sets simultaneously in multiple windows with zooming and scrolling.
- Allow user to view data in stacked plots (e.g. so they can see multiple signals simultaneously on the screen and scroll the time axis)
* That's DIAdem VIEW, sounds like a perfect fit: http://zone.ni.com/devzone/cda/tut/p/id/7384
- Allow user to annotate data (e.g. add comments at specific timestamps)
* DIAdem VIEW has the ability to highlight events with cursors, and we could easily add the ability to add comments through a custom dialog and a short script. We could prepare and demo this feature for you ...
I would be happy to discuss your application with you in more detail. Feel free to contact me at [phone] (ask for Otmar Foehner) or via email at    otmar DOT foehner AT ni DOT com.
Otmar D. Foehner
Business Development Manager
DIAdem and Test Data Management
National Instruments
Austin, TX - USA
"For an optimist the glass is half full, for a pessimist it's half empty, and for an engineer is twice bigger than necessary."