Distribution of PDA APP to multiple devices

F

Frederik Jensen

This issue seems pretty complex. I am not sure targeting this NG is correct
but please direct me otherwhere if so.

I have a system architecture with a central server and a .net 4.2 device.
Users input data on the device through a vb.net cf application and the data
is sent to the server using sockets communication through a GSM telephone
line. Here a vb.net application receives the data and stores it in a
database. At some point in time a new version of the device application will
be available. The application on the device must then be updated with the
newest software. A design is to be created where the device can be updated
somehow automatically.

The device can be in either a wait state awaiting a new task or in a working
state working on an active task. At all times a minimum of data is exchanged
between the server and the device, however, frequent exchanges occur in the
working state. At anytime a state change can occur from waiting to active
state. During active state it is important that the frequent updates are not
blocked by a "big" dowload (1MB).

Does .NET somehow support an update scheme/model that could solve this? Any
3rd part tools?

My idea is to use the existing socket communication layer to transfer the
file from the server to the device. Cutting up the rather large application
update into small chuncks of binary data and then sending then to assembly
on the device. It doesnt matter if the file is not updated within the minute
or hour as long as it gets updated eventually. This however requires a lot
of programming and handling and the buttom line is of course to minimize
time and money.

Any comments on how to go about this? Any webreferences? In advance thank
you for reading this.
 

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