Overview
This model, jtmaxsoft/OFKMS-Migration-Qwen3.5-9B-DPO, is an 8 billion parameter language model developed by TmaxSoft Japan. It is fine-tuned from the Qwen3.5-9B base model using QLoRA with DPO (Direct Preference Optimization) to specialize in mainframe migration design. The training data comprised 1,288 SFT entries and 1,288 DPO pairs, derived from TmaxSoft Japan's proprietary migration knowledge base.
Key Capabilities
- COBOL/JCL/Assembler Migration Design: Specialized in analyzing and converting legacy mainframe code.
- Pattern Analysis: Identifies COBOL source patterns and generates conversion rules.
- JCL to OpenFrame JCL Migration: Facilitates the transformation of JCL scripts.
- Assembler to C/OFASM Migration: Supports the conversion of Assembler code.
- Documentation Generation: Aids in creating migration design documents.
- Error Diagnosis: Capable of diagnosing ABEND codes and JES messages.
- Multilingual Support: Primarily Japanese, with support for Korean and English.
Training Details
The model was trained for 3 epochs using QLoRA (rank=64, alpha=128) with a learning rate of 2e-5. Approximately 174 million (2.09%) of the 8.4 billion parameters were trainable.
Good For
This model is ideal for organizations undertaking mainframe modernization or migration projects, particularly those dealing with legacy COBOL, JCL, and Assembler codebases. Its specialization makes it highly effective for automating aspects of migration design, analysis, and troubleshooting, offering a targeted solution for complex legacy system transformations.