what is difference between Native Deployment & sharepoint-integrated mode-Collection of common programming errors

In native deployment the reports can be managed in the reports manager but in sharepoint deployment the reports would be part of a document library in SharePoint.

The rights to the reports are managed by sharepoint. To configure the reports server to be in sharepoint integrated mode you need to install the ssrs add in for share point.

http://www.codeproject.com/Articles/88285/Integrating-Sharepoint-2010-and-SQL-Reporting-Serv

you can refer the above url