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Mario M. Guzman Biography

Mr. Guzman is president of MG Technologies, Inc., an organization providing the most current knowledge in the development of systems and applications software. Mr. Guzman has been working with CICS since 1970 and VSAM since 1974. He is one of the most experienced CICS systems designers today. He has been developing operating systems and application software since 1970. He is called upon to resolve reliability and performance problems when all else fails.

Mr. Guzman is one of the leading CICS and VSAM instructors. Thousands have benefited from his 30+ years of teaching, design and tuning experience. His classes are renowned for their up-to-date comprehensiveness and concise presentation. Mr. Guzman illustrates techniques that improve response times, reliability and user friendliness. His classes are some of the few available that provide information on how to implement fully recoverable systems without sacrificing performance.

Mr. Guzman began teaching Communication Electronics to the handicapped in 1966. He taught numerous CICS and VSAM classes at Golden Gate University in San Francisco where he also served on the Database and Data Communications Committees. Mr. Guzman has taught over 5000 data processing professionals and instructs all our classes to ensure students receive the highest level of expert training possible.

Partial List of Skills

  • z/OS and z/VSE operating system tuning
  • Installation of z/OS, z/VSE, CICS, VSAM, VTAM, TCP/IP and NCP
  • CICS tuning of systems with thousands of terminals
  • System problem analysis (performance, reliability and usability)
  • Application design
  • Database design
  • Hardware and software analysis
  • System and application conversions

Software Developed

  • Complete application systems
  • System level utility programs
  • Interfaces to CICS for third party software
  • CICS conversion tools
  • Specialized interfaces to other TP environments
  • PC connectivity software

Writing Experience

  • Commentaries
  • Newsletters
  • Classroom text
  • Programming standards
  • Design guidelines
  • Systems, applications and operations documentation

Technical Achievements

  • Reduce CPU utilization over 60 percent
  • Cut memory requirements in half
  • Improve response time for 99 percent of all tune ups
  • Perform application conversions with response time improvements of up to 12 times faster
  • Redesign printing applications to improve print time and reliability
  • Modify operating system code to improve utilization

User Groups

Mr. Guzman teaches on-site and public classes all around the country. He was a keynote and guest speaker at several user groups around the country, some include:
  • Bay Area Users Group (since 1982)
  • Los Angeles MVS Users Group
  • Los Angeles CICS Users Group
  • Denver DMS Users Group
  • Seattle DMS Users Group
  • Portland DMS Users Group
  • CODE Training Group
  • MVT/VSE Users Group
  • ADR SE training group
  • Cincom TSR Groups

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