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SPO America's »Legacy Link«

Generally the R/3 interface team faces the following problems:

  • Satisfying the business rules and data integrity checks incorporated in the new system.
  • Maintaining a consistent approach in terms of operation, error and exception handling, duplicate processing etc.
  • Uniform approach in designing interface between the new and other application running across different operating systems.
  • In the case of inbound transfer, the problem of identifying the right sequence of screens, programs and input field requirements for each transaction.
  • And in outbound transfer, knowing the complete logical and physical database model and relationships between corresponding entities

In order to create a solution to the above mentioned problems, SPO America has developed a tool called the Legacy Link. This allows the designer to identify the right sequence of programs, screens and fields. While this tool facilitates a development with uniform data transfer control mechanisms between R/3 and other applications, it also generates BDC programs.

 

You only need to choose
Chart 4
Legacy Link offers three different levels of solutions.

  • Cut Over Support
  • Interface support with user supplied link programs
  • Interface support with cooperation partner software

 

Program generation, a piece of cake.
chart 1
To generate an interface, the system has to know, which SAP pro gram and screen will be used. The user has to enter this data in the definition step or he runs the transaction via Legacy Link screen caption function with typical data. Legacy Link will then automatically supply the information.
To get the documentation and worksheets for the mapping process, the system provides a legacy data dictionary. This information can be used to attach SAP fields to legacy fields. Legacy Link allows to insert additional work fields for processing in user exits to generate infor- mation, which is not available during extraction time.

 

Legacy Link minimizes the effort
The system produces a stand alone BDC program set:
Chart 2
A specific scenario controller

  • parameter driven
  • list reporting
  • A scenario program
  • A user exit program

For use with the gate controller as permanent interface

  • A validation program
  • A user validation program

For test purposes

A template program for test data.

 

A fully automated interface solution
Chart 3
The system expects the data at the gate controller. From here, an identification process takes care of validity and processing options.

Batch files have there specific naming convention, to allow multiple processing in all steps. Batch arrivals for immediate processing are automatically handled by a dispatcher. Remote or local function calls are independent from batch processes.

If you want to learn more about leglink, please go to the About SPO page and fill out the form. We will provide you with additional information ASAP.

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