XPages are agnostic as to what database they get their data from. This flexibility allows you to surface data from several different Notes database, or even certain non-Notes sources. This articles shows you some of the ways of doing that including different techniques to organize and present this data.
There are a number of different ways you can use XPages as a platform for integration.
Separating your applications UI from the data provides flexibility when integrating different applications and data. This article discusses deep and light integration techniques which allow the information to be displayed in context reducing the number of steps the end user must perform. We also introduce some data integration concepts using a relational database example to increase your options. The flexibility of XPages makes it an excellent platform for integration.