The standard resolution to fit in a screen and projector would be of 1280*1024.
To create an application so as to fit in any screen - it depends on the screen size of devices you use.
Keeping in mind the screen sizes we use, an application size has to be set.
View> Resize Window> ..you can select the required zize.
That depends on the QlikView client. For example:
- Ajax: no zooming, no resizing.choose the most common size, or provide two documents with different dashboard sizes (for example SD and HD) and adjusted layouts
- Plugin for IE: has a zoom function. design your dashboard in such a way that upon first opening, it fits on the most common screen sizes.
- Apple client: has autozoom (hurray!) but you will need to take care of the limited screen size combined with an extremely high resultion. Design big buttons, increase font sizes and provide enough object spacing.
Your situation may require an even different solution.