About data model and data storage

[_Mark_]

Hello,
I'd like to discuss the best way to store and handle data. Currently I acquire real-time data from the field using different channels (i.e. rs232, ethernet, user interface, etc...). I have a struct which is a "snapshot" of the system at the current time.

I do two things with this struct:

1. show the content on a table
2. log into a file (each time the struct changes or on specified intervals)

My questions are:

a) I would use a model-based QTableView to how the data. How to organized the struct and the model class? I'm talking about both the model class and the I/O class should access to the struct and I wonder where and how to declare it.

b) is the struct the recommended way? Do you suggest something else?

Thanks!
Mark