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List of Use Cases Implemented by AR290A.ocl36.txt

The AR290A.ocl36.txt OCL program implements a single primary use case:

  1. Post A/R Salesman Change Transactions:
  2. This use case involves processing changes to salesman assignments in the Accounts Receivable (A/R) system by validating the existence of changes in the ARSLST file, processing them into the SLSCHG file, and handling user confirmation or cancellation.

Function Requirement Document

A/R Salesman Change Posting Function Requirements

Overview

The post_ar_salesman_changes function processes salesman change transactions in the Accounts Receivable (A/R) system, validating and applying updates from the ARSLST file to the SLSCHG file without user interaction.

Inputs

  • ARSLST File: A data file containing pending salesman change transactions (e.g., customer ID, old salesman ID, new salesman ID).
  • SLSCHG File: A target file for processed salesman change records.
  • System Parameters: Configuration data specifying file formats and processing rules.

Outputs

  • Updated SLSCHG File: Contains processed salesman change records.
  • Status Code: Indicates success, no changes, or cancellation.
  • Error Message (if applicable): Describes any issues encountered (e.g., no records in ARSLST).

Process Steps

  1. Validate ARSLST File:
  2. Check if ARSLST contains any salesman change records.

  3. If no records exist, return status "No changes to process" and exit.

  4. Process Changes:

  5. If records exist in ARSLST, read each record (e.g., customer ID, old salesman ID, new salesman ID).
  6. Validate record integrity (e.g., non-null salesman IDs, valid customer references).

  7. Write validated records to SLSCHG file with specified format (starting at record 1, block size 32).

  8. Complete Posting:

  9. If all records are processed successfully, return status "Posting completed".
  10. If processing fails (e.g., file errors), return status "Posting cancelled" with error details.

Business Rules

  • Data Validation: Ensure ARSLST records contain valid customer and salesman IDs. Invalid records are skipped, and an error is logged.
  • File Integrity: SLSCHG is created or overwritten only if ARSLST contains valid records.
  • Atomic Processing: All changes are processed as a single transaction; partial updates are not allowed.
  • No User Interaction: The function operates autonomously, assuming all inputs are pre-validated.

Calculations

  • No explicit calculations are performed. The function primarily involves data validation and file manipulation:
  • Record Count Check: Determines if ARSLST has zero records (record_count == 0).
  • Record Mapping: Maps ARSLST fields (e.g., customer ID, salesman ID) to SLSCHG format without transformation.

Error Handling

  • If ARSLST is empty or inaccessible, return "No records exist in the change table".
  • If SLSCHG cannot be created or written to, return "Posting process failed" with error details.
  • Log all errors for audit purposes.

Assumptions

  • Input files (ARSLST, SLSCHG) are accessible and formatted per system specifications.
  • No external user input is required; the function processes data autonomously.