Actually, Qlikview can help in any of the different domains or modules by its customizable nature.
On the official website of Qlikview, you can go through different domains served by qlikview.
Qlikview, you can say is a database reader tool with an additional analytic and reporting..it shouln't be mixed with the modules available with other BI tools available in the market.
Hope this helps.
Depends how you look things. e.g for other BI Softwares you treat Manufacturing and Finance as Tool.
Here in QV these are service Industry, for which QV user create his own Tool ( Dashboard) as per his requirement.
For this he gathered the data from different sources, it can be from your Excel File, sap,csv, Oracle,sm9, qvd etc by linking them . and then Developed his QlikView Model.