4 Replies Latest reply: Apr 30, 2008 8:19 AM by Guest RSS

Difference between conversion and interface

vijaya lakshmi
Currently Being Moderated

hello,

  can any inform me what is the difference between conversion and interface ?

Is bdc either conversion or interface ?

Thank you in advance.

  • Re: Difference between conversion and interface
    Runal Singh
    Currently Being Moderated

    hi,

     

     

    DIFFERENCE BETWEEN CONVERSION AND INTERFACE:

     

     

    A Conversion means data that is converted from one format to another format and from one system to another.

    So when you first implement SAP, you are actually replacing some of your legacy systems, but you are not completely trashing the data. You still need some of that data from the systems that are being replaced. So you pull the data out of your legacy systems and put them on some files. You then want to load that data into your new SAP system.

    That is when you write some programs which will read that data and load it into SAP. Imagine you had a home grown purchasing system. You are now replacing all that with SAP. But until SAP goes live, you want to keep using your home grown purchasing system.

    So during go live, you want to transfer the POs from your legacy system to SAP. Now a PO in your legacy system may not have the same fields as a PO in SAP. So you convert the data.

     

    Ex: BDC,LSMW

     

    Interfacing is connecting two or more different entities. In our case, it is connecting one or more systems with SAP. Now extending our previous example, you are replacing some legacy applications but there are some applications that you don't want to replace yet.

    You need to somehow pass data back and forth between SAP and these remaining systems. Data may be going one way or the other way or both ways. You will still need to do some data transformations/translations etc to make the data understandable to the receiving system.

    This will continue as long as you want to keep the systems running alongside SAP.

     

    Ex: idoc,bapi

     

    In short, conversions are written to load data into SAP onetime. These are typically file based.

     

    Interfaces are written to exchange/update/send/receive data between SAP and other systems on an ongoing basis. These can be in many forms, file based, idoc based, real time(business connector, XI etc are useful in this), xml, and the list goes on.

     

     

     

    Hope this helps, Do reward.

  • Re: Difference between conversion and interface
    srinivas oota
    Currently Being Moderated

    Hello Vijaya Lakshmi-

     

    BDC is converstion.

     

    Converstion:Converts legacy data to SAP.EX:BDC

    Interface:Acts like a bridge between two systems. EX:BAPIs.

     

     

    Cheers,

    ~Srini....

  • Re: Difference between conversion and interface
    Vibha Parmar
    Currently Being Moderated

    A Conversion means data that is converted from one format to another format and from one system to another.

    So when you first implement SAP, you are actually replacing some of your legacy systems, but you are not completely trashing the data. You still need some of that data from the systems that are being replaced. So you pull the data out of your legacy systems and put them on some files. You then want to load that data into your new SAP system.

    That is when you write some programs which will read that data and load it into SAP. Imagine you had a home grown purchasing system. You are now replacing all that with SAP. But until SAP goes live, you want to keep using your home grown purchasing system.

    So during go live, you want to transfer the POs from your legacy system to SAP. Now a PO in your legacy system may not have the same fields as a PO in SAP. So you convert the data.

    Ex: BDC,LSMW

     

    Interfacing is connecting two or more different entities. In our case, it is connecting one or more systems with SAP. Now extending our previous example, you are replacing some legacy applications but there are some applications that you don't want to replace yet.

    You need to somehow pass data back and forth between SAP and these remaining systems. Data may be going one way or the other way or both ways. You will still need to do some data transformations/translations etc to make the data understandable to the receiving system.

    This will continue as long as you want to keep the systems running alongside SAP.

    Ex: idoc,bapi

     

    In short, conversions are written to load data into SAP onetime. These are typically file based.

     

    Interfaces are written to exchange/update/send/receive data between SAP and other systems on an ongoing basis. These can be in many forms, file based, idoc based, real time(business connector, XI etc are useful in this), xml, and the list goes on.

  • Re: Difference between conversion and interface
    Currently Being Moderated

    Hi,

    Conversion: The legacy system may have a different representation for the data, from that of SAP. A conversion program basically aims at converting the data into a format that is acceptable for SAP.

    Whereas an interface does the actual upload of the data into the SAP system through various means.

     

    Regards

    Kiran

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