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List of Use Cases Implemented by the OCL Program (AP795.ocl36.txt)

The OCL program AP795.ocl36.txt implements a single primary use case:

  1. Preparation of IRSTAX File for 1099 Reporting:
  2. The program converts 1099 data from the AP1099 file into the IRSTAX file, formatted as required by government regulations, for download to a PC. It supports both production and test environments by handling file names dynamically (using the ?9? variable) and includes checks to avoid overwriting existing files without user confirmation.

Function Requirement Document

Function Requirement Document: IRSTAX File Preparation

Purpose

To create a function that converts 1099 data from the AP1099 file into the IRSTAX file, formatted for government reporting, suitable for download to a PC. The function operates in both production and test environments, ensuring no data conflicts and adhering to business rules.

Inputs

  • Source File: AP1099 (or ?9?AP1099 in test environment), containing 1099 data.
  • Target Library: DATAF1, where the IRSTAX file will be created.
  • Environment Prefix: ?9? (string, e.g., TEST or empty for production), determines file naming.
  • Record Length: Fixed at 750 bytes, defining the output file format.
  • Error Handling Flag: NE (No Error), allowing the process to continue despite certain errors.
  • Disposition: 'D', specifying the data copy mode (direct copy).

Outputs

  • Target File: IRSTAX (or ?9?IRSTAX in test environment), created in the DATAF1 library, containing formatted 1099 data ready for government submission.

Process Steps

  1. Validate Environment:
  2. Determine if the environment is production (?9? is empty or /G) or test (?9? is a prefix like TEST).
  3. Check for Existing IRSTAX File:
  4. Verify if DATAF1-IRSTAX (or DATAF1-?9?IRSTAX) exists.
  5. If the file exists, delete it to prevent data conflicts.
  6. Copy Data:
  7. Copy data from AP1099 (or ?9?AP1099) to IRSTAX (or ?9?IRSTAX) in the DATAF1 library.
  8. Use a record length of 750 bytes, NE error handling, and 'D' disposition.

Business Rules

  • File Overwrite Protection: The function must check for an existing IRSTAX file and delete it only if it exists, ensuring no accidental data loss.
  • Environment Flexibility: Support dynamic file naming based on the ?9? prefix to accommodate production (IRSTAX, AP1099) and test (?9?IRSTAX, ?9?AP1099) environments.
  • Data Integrity: The output IRSTAX file must conform to a 750-byte record length to meet government reporting standards.
  • Error Handling: Use NE to allow non-critical errors during the copy process, ensuring the function completes unless a critical failure occurs.
  • Disposition: Use 'D' mode to ensure direct data copying without additional transformations unless specified by government requirements.

Calculations

  • No explicit calculations are performed. The function relies on the COPYDATA command to handle data transfer, assuming the AP1099 file is pre-formatted with correct 1099 data (e.g., amounts, payee details) and the 750-byte record length ensures compatibility with government submission formats.

Assumptions

  • The AP1099 file contains valid 1099 data, pre-validated and formatted for government requirements.
  • The DATAF1 library exists and is accessible for writing the IRSTAX file.
  • The ?9? prefix is provided correctly to distinguish between production and test environments.
  • The COPYDATA command handles any internal data formatting required for the 750-byte record structure.

Constraints

  • The function does not interact with a user interface, relying on input parameters for all decisions.
  • No external file I/O beyond the IBM i system (e.g., no direct PC download within the function).
  • The function assumes the COPYDATA command is available on the IBM i system.