In today’s fast-paced digital landscape, organizations running mission-critical workloads on IBM z/OS are under increasing pressure to modernize decision-making processes without disrupting stability or performance. That’s where IBM Decision Runtime for z/OS (DR4z) comes in—a powerful new capability designed to bring intelligent, real-time decision automation directly to your mainframe environment.
What Is IBM Decision Runtime for z/OS?
IBM Decision Runtime for z/OS is a lightweight, high-performance execution environment that enables decision services to run natively on z/OS.
DRz 9.5 brings great flexibility and choice for customers running decision services on z/OS by combining three decision runtimes into one package; allowing any combination of IBM Operational Decision Manager, IBM Automation Decision Services or IBM Decision Manager Open Edition Runtimes whichever IBM enterprise decisioning solution a customer has chosen they are able to share decisions with their core z/OS applications.
It’s built to integrate seamlessly with COBOL and PL/I applications, allowing organizations to embed business rules and logic directly into their existing systems with minimal effort.
Key Capabilities
- Native z/OS Execution: Run ODM decision services directly on z/OS, reducing latency and eliminating the need for cross-platform calls.
- Combined Runtime Support: Supports decision services created for
- IBM Operational Decision Manager
- IBM Automation Decision Services
- IBM Decision Manager Open Edition
- Machine Learning: Leverage AI-powered scoring from Watsonx.AI and IBM Machine Learning for z/OS within your ODM and ADS decision services to enable smarter, context-aware outcomes.
- COBOL Client Generation: Automatically generate sample COBOL client programs for any deployed decision service, simplifying integration and accelerating development.
Why It Matters
For organizations relying on z/OS for core business operations, DR4z offers a path to modern decision automation without the complexity of replatforming. By bringing decision services closer to the data and applications they serve, DR4z helps reduce response times, improve maintainability, and unlock new levels of agility.
Whether you're looking to streamline compliance checks, personalize customer interactions, or optimize operational workflows, DR4z empowers your teams to make faster, smarter decisions—right where they matter most.
Getting Started
IBM Decision Runtime for z/OS is available as part of the IBM ODM ecosystem. To learn more about how to deploy and integrate DR4z into your environment, visit the IBM Documentation or reach out to your IBM representative.