Wednesday 16 April 2014

Data Structures

Data Structures:

Data Structures is a list of parameters that passes data between applications and tables.

The types of data structures are:
  1. System defined data structures
  2. User defined data structures
System defined data structures: The system defined data structures are form data structure and report data structure.

     Form Data Structure: Each form with an attached business view has a default data structure.This is used to receive or send parameters to other forms.
     
    Report Data Structure: A report is a batch application. Batch application can receive parameters from or send parameters to data structures.

User defined data structures: The user defined data structures are 
  1. Media Object Data Structure: It is used to add images or media files.
To create media object data structure:

  • After entering into OMW window click on 'Add' button and select media object data structure and click 'OK' button.
  • A window will pop up with the fields like object name, Description, Product code, System code. Fill all the fields and click OK button. Media object data structure will be created.
Naming ConventionGTXXXXYYA
GT is media object
XXXX is the file name
YY is next number

      2. Business function data structure: This business function uses source languages as C or NER.

To create a business function data structure:
  • After entering into OMW window click on 'Add' button and select  Business function data structure and click OK button.
  • A window will pop up with the fields like object name, Description, Product code, System code and source language( C or NER ). Fill all the fields and click OK button. Business function data structure will be created.
The naming convention is DXXXXYYYY
      
       3. Data structure: 

To create a data structure:
  • After entering into OMW window click on add button and select Data Structure and click OK button.
  • A window will pop up with the fields like object name, Description, Product code, System code and type( Regular data structure or Processing option template). Fill all the fields and click OK button. Data structure will be created.
     Processing option Data structure: A parameter list is used to pass processing options to an application. 
Naming convention of processing option data structure is TXXXXYYYY.
Naming convention of Regular Data Structure is DXXXXYYYY

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