Create the Global Filters
A global filter is a value that is shared across
different reports. At least one of the reports that you are using
for the dashboard needs to contain a prompt or prompt control. The
prompted report is embedded into a page or a dashboard using the IBM® Cognos® Viewer
portlet and linked with other reports in the page using the global
filter portlet properties. The prompts that are used as global filters
control the display of your chosen linked reports. If this functionality
is implemented in a single page, the prompts control linked reports
in different sections of the page.
If the page is a dashboard with multiple tabs, the prompts can control the report filtering across tabs. Note that there is a limitation with filtering across tabs for IBM Cognos Viewer portlets. For prompts to control report filtering, the IBM Cognos Viewer portlet must exist as a sibling on the same page as the Multi-page portlet.
We recommend creating prompt reports in Report Studio. The rich editing environment of this studio gives the author access to a variety of prompt controls, such as the Next, Reprompt, or Finish buttons. These controls add more interactivity to portal pages.
For more information about building prompts and prompt pages, see the IBM Cognos Report Studio User Guide.