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Zorow

Zorow is an open source project under the Open Mainframe Project that provides tools and resources for modernizing and working with COBOL applications on IBM Z (mainframe modernization).

  • Mainframe COBOL (application modernization) enablement under the Open Mainframe Project umbrella.
  • Resources and tooling for COBOL education and skills development on IBM Z (developer tooling).
  • Support for exploration, experimentation, and learning around COBOL workloads (training and enablement).
  • Community-driven collaboration for COBOL practitioners and learners on IBM Z platforms (community ecosystem).
  • Alignment with broader Open Mainframe Project goals for open source on enterprise mainframes (open source governance).

More About Zorow

Zorow is an open source project hosted by the Open Mainframe Project and focused on COBOL and IBM Z (mainframe modernization). It operates within the context of enterprise mainframe environments, where COBOL remains a core language for transaction processing, batch workloads, and business-critical applications. The project’s role is to provide an open framework in which COBOL practitioners, learners, and organizations can access resources that support continued development and understanding of COBOL on modern IBM Z systems.

The project centers on COBOL (programming language tooling) and IBM Z (platform enablement). Its capabilities include providing learning materials, code samples, and reference artifacts that help technical staff work with COBOL in a contemporary mainframe setting. These resources assist developers and architects in understanding COBOL program structure, data handling, and integration patterns that are common in enterprise workloads, including batch jobs and transaction processing pipelines.

In enterprise and institutional environments, Zorow functions as a focal point for COBOL-related enablement within the Open Mainframe Project (open source ecosystem). Organizations that rely on IBM Z can use the project’s materials and collaborative assets to onboard new developers, maintain institutional knowledge around COBOL, and experiment with COBOL code in a community-supported context. This can support workforce continuity planning where long-standing COBOL applications remain critical to business operations.

From an architectural perspective, Zorow aligns with IBM Z mainframe environments (enterprise infrastructure) and COBOL-based application stacks. While it does not replace compilers or runtime subsystems, it sits alongside those components as an educational and enablement layer. It can be combined with other tools in the Open Mainframe Project ecosystem, subject to each organization’s architecture decisions, to form a broader toolchain for COBOL development, testing, and operations.

For directory and taxonomy purposes, Zorow fits into categories such as mainframe modernization, COBOL enablement, IBM Z ecosystem tooling, and open source education resources. Its focus on skills development and access to open materials positions it as a project that supports the lifecycle of COBOL use on IBM Z, from learning and experimentation through to ongoing maintenance in enterprise environments.