I'm rolling out an application to laptops only. At present I have a collection that is based on an AD group and members of a laptop collection (WQL query). This is my pilot group. I plan on rolling the application out in phases so will start with 10%, 30%, 60% etc. When that is complete I plan on pointing the advertisement to the laptop collection. Here are my questions:
1. To do the phased rollout is it best practice to use multiple collections and mulitple advertisements?
2. When I finally point an advertisement to the laptop collection, how can I be sure the application won't reinstall on those machines that already have the application. Note, I plan on setting Rerun if previous failed on all advertisements.
3. Or should I add the various phases in AD groups and then once I'm done remove all the groups from the collection and change it's membership to be the WQL query based on a laptops?
So basically what are the best practices for doing phased rollouts and ensuring the applications don't get reinstalled?
Thanks