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DIFFERENCE BETWEEN INFORMATICA 7.1 AND 8.1===========================================

Object Permissions*

Effective in version 8.1.1, you can assign objectpermissions to users whenyou add a user account, set user permissions, or edit anobject.

*Gateway and Logging Configuration*

Effective in version 8.1, you configure the gateway nodeand location forlog event files on the Properties tab for the domain. Logevents describeoperations and error messages for core and applicationservices, workflowsand sessions.

Log Manager runs on the master gateway node in a domain.

We can configure the maximum size of logs for automaticpurge in megabytes.

Powercenter 8.1 also provides enhancements to the LogViewer and log eventformatting.

*Unicode compliance*

Effective in version 8.1, all fields in the AdministrationConsole acceptUnicode characters. One can choose UTF-8 character set asthe repositorycode page to store multiple languages.

*Memory and CPU Resource Usage*

You may notice an increase in memory and CPU resource usageon machinesrunning PowerCenter Services.

*Domain Configuration Database*

PowerCenter stores the domain configuration in a database.

*License Usage*

Effective in version 8.0, the Service Manager registers

license information.

*High Availability*

High availability is the PowerCenter option that eliminatesa single pointof failure in the PowerCenter environment and providesminimal serviceinterruption in the event of failure. High availabilityprovides the

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following functionality:

*Resilience. *Resilience is the ability for services totolerate transientfailures, such as loss of connectivity to the database ornetwork failures.

*Failover. *Failover is the migration of a service processor task toanother node when the node running the service processbecomes unavailable.

*Recovery. *Recovery is the automatic or manual completionof tasks after anapplication service is interrupted.

* *

*Web services for Administration*

The Administration Console is a browser-based utility thatenables you toview domain properties and perform basic domainadministration tasks, such

as adding domain users, deleting nodes, and creatingservices.

*Repository Security*

Effective in version 8.1, PowerCenter uses a more robustencryptionalgorithm.

Also provides advanced purges for purging obsolete versionsof repositoryobjects.

*Partitioning*

There is database partitioning available. Apart from thiswe can configuredynamic partitioning based on nodes in a grid, the numberof partitions inthe source table and the number of partitions option. Thesession createsadditional partitions and attributes at the run time.

*Recovery*

The recovery of workflow, session and task are more robust

now. The state ofthe workflow/session is now stored in the shared filesystem and not inmemory.

*FTP*

We have options to have partitioned FTP targets andIndirect FTP filesource(with file list).

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*Performance*

Pushdown optimization

Uses increased performance by pushing transformation logicto the databaseby analyzing the transformations and issuing SQL statementsto sources andtargets. Only processes any transformation logic that itcannot push to thedatabase.

*Flat file performance*

We can create more efficient data conversion using the newversion.

We can concurrently write to multiple files in a sessionwith partitionedtargets.

One can specify a command for source or target file in asession. The

command can be to create a source file like 'cat a file'.

Append to flat file target option is available now.

*Pmcmd/infacmd*

New features added to pmcmd. We can use infacmd toadminister Powercenterdomains.

Infasetup program to setup domain and node properties.

*Mappings *

We can now build custom transformation enhancements in APIusing c++ andJava code.

We can use partition threads to specific custom t