What are the differences between 7.1 and 8.1 of informatica

Below are the difference between 7.1 and 8.1 of infa..

1) powercenter connect for sap netweaver between option

 2) sql transformation is added

 3) service oriented architecture

 4) grid concept is additional feature

 5) random file name can genaratation in target

 6) command line programms: infacmd and infasetup new commands were added.

 7) java transformation is added feature

 8)concurrent cache creation and faster index building are additional feature in lookup 

     transformation.

 9) caches or automatic u dont need to allocate at transformation level

 10) push down optimization techniques,some

11) we can append data into the flat file target.

12)Dynamic file names we can generate  in informatica 8

13)flat file names we can populate to target while processing through list file .

14)For Falt files header and footer we can populate  using advanced options in 8 at session level.

15) GRID option at session level

Effective in version 8.0, you create and configure a grid in the Administration Console. You configure a grid to run on multiple nodes, and you configure one Integration Service to run on the grid. The Integration Service runs processes on the nodes in the grid to distribute workflows and sessions. In addition to running a workflow on a grid, you can now run a session on a grid. When you run a session or workflow on a grid, one service process runs on each available node in the grid.

Developer Changes:

For example, in PowerCenter:

•         PowerCenter Server has become a service, the Integration Service

•         No more Repository Server, but PowerCenter includes a Repository Service

•         Client applications are the same, but work on top of the new services framework

Parameters and Variables

Parameter file  will supply the values to session level variables and mapping level variables.

Variables are of two types:

Session level variables

Mapping level variables

Session level variables are of four types:

$DBConnection_Source

$DBConnection_Target

$InputFile

OutputFile

Mapping level variables are of two types:

Variable

Parameter