QlikView is an enterprise product that is server based. For 100 users and 1 dashboard you need:
1 x Named user (full desktop installation - developer)
1 x Small Business Server
100 x Document CALs
List prices are on the website but talk to your sector manager or a partner about deals.
Then you can easily share the dashboard with all users and all changes made by the developer are seen by the users.
Hope this helps,
Just go to http://demo.qlik.com and have a look at the demo apps.
That should give you an idea how you can access a dashboard in your organization and what's the look & feel.
Also take a look at the freely available resources and whitepapers, e.g.