if u want automatically load ur fresh data from ur source system to ur .qvw file u have to schedule ur .qvw app through server,if so server will helps to fetch data accordingly ur scheduled time(by ever hour/every day/month..etc---you will see schedule options on server).
QlikView Publisher is an optional module for QlikView Server that enables scheduling, administration, and management tools that provide a single point of control for QlikView analytics applications and reports. Administrators can schedule, distribute, and manage security and access for QlikView applications and reports across the enterprise.
QlikView Publisher performs the following main functions:
It loads data directly from data sources defined in connection strings in the source .qvw files.
It is used as a distribution service to “reduce” data and applications from source .qvw files based on various rules (for example, user authorization or data access) and distribute these newly-created documents to the appropriate QlikView Servers or as static reports via email
When using QlikView Publisher, only Publisher has access to the source documents folder and the data sources for data load and distribution. The source documents and data are not accessible by QlikView users.
Tasks
Task can be used to perform a wide variety of operations and be chained together in any arbitrary pattern. The starting point when describing tasks is the transformation of a source document into a user document.
