Prism³ adds entirely new features as well as improve existing ones in the Prism product:  

 

ElastiCubes

ElastiCubes are a super-fast data sources that allows you to merge data from disparate sources, manipulate it and then query it.  ElastiCubes can handle very large amounts of data and can be created visually via the ElastiCube Project Manager.  Details.

Global Scope

This feature is a significant enhancement to the existing 'Background' feature allowing the selection of one widget to filter results in another widget.  Global scope allows a widget to filter all other widgets on the sheet by default.  All widgets can be configured to affect all other widgets, specific widgets or no widgets on the sheet.  Details.

The Global Scope indicator

An important addition to the Prism environment, showing the data context that is currently applied to the sheet.  Gives immediate understanding of the data currently shown on the active sheet.  Details.

Change Sheets While Keeping Selections

Powerful new functionality allowing you to change between sheets while keeping the current selections.  This is very useful when you wish to see different analyses, while still focusing on what you are analyzing at that very moment.  Details.

Data Browser Search

A search was added to the top of the Data Browser allowing you to easily find dimensions, measures, members, groups and filters.

Scheduled Dashboard Refresh

Dashboards can be set to automatically refresh at pre-defined intervals.  Details.

Export Widget Data

Copy the data behind a widget to the clipboard, allowing use in other applications.  Details.

Export Widget as Image

Copy the widget to the clipboard, as an image, allowing use in other applications.  Details.