Driver: This component reads the COBOL source program, extracts copy members from the input source file, and executes the conversion process according to the corresponding compiled LCPs.

The driver produces four types of output:

New COBOL source code in new source library (optional).

New COBOL copy module in new copy library (optional).

COBOL source statement diagnostic listing.

Conversion management report data.

The diagnostic listing is a statement-by-statement log showing the result of the conversion process.

An analysis is made to ensure that user-defined names do not conflict with words newly reserved for the new COBOL language. Where conflicts appear, a two-character suffix is appended to the user name. This suffix can be modified by the user.

Conversion management report programs can be executed on request to provide the status of each converted program, and tell when it was converted, and whether user involvement is required. A ²where-used² list of copy modules, files, and CALL statements can also provided. These reports provide an excellent cross reference.

33.2.4 SISRO - CORTEX-Migration System (CORTEX-MS)

SISRO designs, develops and commercializes computer automation software products which make it possible to drive and monitor computer systems, while planning processing and managing data.

The CORTEX and JobServe products (for mainframes and distributed environments, respectively) provide solutions that are modular, user-friendly and based on innovative technology, which is a guarantee of openness.

SISRO has nurtured close partnerships with many leading actors in the computer market, notably with Microsoft (Solution Provider since 1992), IBM (S390/PID and SDP Associate), DEC (Member of ASAP program), and Oracle (Member of Oracle Value Service Program).

SISRO¢s software packages are marketed worldwide via a network of distributors and integrators, and through subsidiaries in Europe and the United States.

The CORTEX-MS product uses the mass migration method. Mass conversion automation is the result of six software components designed for conversion of VSE production applications to OS/390. All the components are menu driven through TSO/ISPF panels.

For more information contact SISRO at

1.website www.sisro.com, or

2.by phone in the US at 919-460-9870.

524VSE to OS/390 Migration Workbook

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IBM OS/390 manual Sisro CORTEX-Migration System CORTEX-MS

OS/390 specifications

IBM OS/390, a versatile operating system, was a cornerstone in enterprise environments and played a pivotal role in mainframe computing. Released in the mid-1990s, OS/390 combined the strengths of IBM's MVS (Multiple Virtual Storage) with new features and enhancements, targeting scalability, reliability, and performance in demanding business applications.

One of the key features of OS/390 was its robust support for multiple users and processes. The system allowed thousands of concurrent users to access applications and data, ensuring high availability and minimizing downtime—a critical requirement for many large organizations. This scalability was supported through various enhancements in memory management and processor scheduling, enabling optimal resource allocation across diverse workloads.

OS/390 was known for its superior workload management capabilities. The Workload Manager (WLM) component allowed administrators to define service policies, specifying how system resources would be allocated according to the priority of tasks. This ensured that critical business processes received the necessary resources while less critical tasks were managed more flexibly.

Another significant characteristic of OS/390 was its commitment to security. The operating system provided comprehensive security features, including user authentication, data encryption, and auditing capabilities. This focus on security was vital for organizations handling sensitive data, ensuring compliance with regulations and safeguarding against unauthorized access.

OS/390 also supported advanced technologies that facilitated integration and development. The system included features like the IBM CICS (Customer Information Control System) for transaction processing and IMS (Information Management System) for database management. These technologies allowed organizations to build robust, high-performance applications tailored to specific business needs.

The ease of network integration was another strength of OS/390. With the advent of the Internet and global connectivity, OS/390 systems could easily interface with various network protocols, enabling businesses to operate in a connected world. This inclusion paved the way for many organizations to expand their capabilities and offer new services, driving digital transformation.

In conclusion, IBM OS/390 represented a significant advancement in mainframe technology, combining scalability, security, and robust workload management. Its rich feature set and support for critical enterprise applications solidified its role as a vital component of many organizations' IT infrastructures, ensuring they could meet their operational challenges head-on while supporting future growth. As technology continues to evolve, the legacy of OS/390 remains influential in the realm of computing.