topic Re: difference between BDC and ALE in Application Development and Automation Discussions

difference between BDC and ALE

Former Member — Tue, 25 Sep 2007 15:14:32 GMT

Re: difference between BDC and ALE

Former Member — Wed, 26 Sep 2007 06:25:38 GMT

hi,

ALE is SAP proprietary technology that enables data communications between two or more SAP R/3 systems and/or R/3 and external systems. When a new enterprise resource planning (ERP) solution such as R/3 is implemented, companies have to interface the ERP system with legacy systems or other ERP systems.

ALE provides intelligent mechanisms where by clients can achieve integration as well as distribution of applications and data.

ALE technology facilitates rapid application prototyping and application interface development, thus reducing implementation time.

The ALE components are inherently integrated with SAP applications and are robust, leading to a highly reliable system.

ALE comes with application distribution/integration scenarios as well as a set of tools, programs, data definitions, and methodologies that you can easily configure to get an interface up and running.

where as bdc can upload data into sap R/3 database.

using either call transaction which is online or session method ..data is uploaded

regards

sree

Re: difference between BDC and ALE

Former Member — Wed, 26 Sep 2007 06:33:03 GMT

Hi,

You can go throgh the documenetion then you get an idea

Why Should we use IDOC to transfer data from Legacy (Peoplesoft) System to SAP r/3. Why cant we use BDC.. can u explain wen should we use BDC and Wen we go for Idoc ,,, if possible explain the purpose of all transfer techniques

You can use the idoc method to transfer the data when you are having an interface between the sap system and the legacy system......

All the times BDC is not preferable like take the case you developed on upload program with bdc after some days your company thought to go for upgrade the sap vesion from lower version to upper version... in that upgraded version the application may change like sequence of fields or screens at that time you previous bdc program will not work here so u have to develop a new program and and you have to take the things into consideration again...

where as if you use bapi or idoc method it will support the upgradations...

in the case of bdc you have to take the data into flat files.... and then upload it to sap system after all the validations done some times the data which is in the flat file is confidential so there is no security if u take such data in flat file any user can chang the data even though if u maintain the data in application server super user can change the data

where is idoc is fully secured... you can easily establich the interface between the systems and once it is done you can transfer the data with full security because idoc r generated by a program... so there is no manual interaction..

Regards