What is Zero-foot print?
What are the other methods working as deployment functionality?

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Cognos offers Portal Services that allow organizations to easily manage and display Cognos business intelligence, planning, and scorecarding in your existing enterprise information portals. Including Cognos reports, analysis, dashboards, scorecards, and other capabilities drives higher returns in your information and portal investments.

Cognos portals offer:

Zero Footprint: Cognos portals have no footprint on the user's desktop. Anyone inside or outside the organization with a Web browser can access and interact with content.

Intuitive User Interface: No special training is required to use the portal. Standard browser interface actions-such as following hypertext links, copying, and pasting-allow users to access and organize business intelligence content quickly and easily
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