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- Art Hendela, President
- Hendela System Consultants, Inc.
- Little Falls, NJ
- 1-973-890-0324
- WWW.HENDELA.COM
- art.hendela@hendela.com
- Your Web Database Experts
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- A transaction has four properties:
It is “Atomic, Consistent, Isolated, & Durable”.
- Atomic - A unit of work that succeeds or fails.
- Consistent - System restored to a constant state after completion.
- Isolated - one transaction does not impact another, even if done at the
same time.
- Durable - A committed transaction is permanent.
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3
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- 1968 - Package developed by Michigan Bell and IBM on OS/360
- 1971 - CICS available for DOS & DOSE
- 1973 - Development moved to Hursley, England
- 1987 - CICS/VM introduced
- 1992 - CICS/400 version for AS/400
- 1996 - CICS Web Interface Product
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4
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- IBM zSeries 900 - z/OS
- IBM S/390 - OS/390, MVS, VSE
- IBM AS/400 - OS/400
- IBM RS/6000 - AIX (Unix)
- PC Server - Windows NT/2000, OS/2
- The most popular is the S/390 using OS/390 or MVS
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5
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- Assembler
- COBOL
- PL/I
- Rexx
- C/C++
- JAVA
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6
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- CICS Management Services
- Data Management Services
- Application Programming Interface
- Basic Mapping Support
- Terminal Control Services
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7
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8
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9
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10
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11
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12
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13
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- CICS grew from the need to handle interactive transactions
- CICS operates on many different IBM compatible hardware platforms using
a variety of languages.
- CICS uses Service programs to control execution and use of system
resources.
- A CICS user sends a TRANS-ID to begin the program execution.
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- ACID - Atomic, Consistent, Isolated, Durable: transaction properties.
- BMS - Basic Mapping Support: For definition and access to formatted
screens.
- CICS - Customer Information Control System.
- CMS - Conversational Monitor System: An interactive subsystem for VM.
- DB2 - Database 2, IBM’s relational database manager.
- DL/I - Data Language / I: General purpose database control language.
- DOS - Disk Operating System: An early IBM operating system for small
mainframes or the original operating system for IBM compatible PCs.
- IMS - Information Management System: IBM Product with an OLTP and
hierarchical database manager.
- MVS - Multiple Virtual Storage: Top of the line IBM operating system
before OS/390.
- OLTP - On-line Transaction Processing.
- OS/390 - Open System 390: latest
operating system for IBM System/390’s.
- SNA - System Network Architecture: IBM’s proprietary network protocol.
- SQL - Structured Query Language: interface to access relational
databases.
- TCP/IP - Transmission Control Protocol/Internet Protocol.
- VM - Virtual Machine: IBM Mainframe operating system to allow multiple
operating systems to run on one machine simultaneously.
- VSAM - Virtual Storage Access Method.
- VTAM - Virtual Telecommunications Access Method.
- Additioanl definitions may be found at:
http://www.transarc.ibm.com/Library/documentation/websphere/WAS-EE/en_US/html/glossary/cicsglos.htm
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15
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- Antrim, T. Scott, “The Evolution of CICS 30 Years Old and Still
Modern.
www.cobolreport.com/columnists/tscott/part1.html - part4.html,
May, 2001.
- Comaford, Christine, “Managing Transactions is a Serious Business”. PC
Week, March 20, 1995 12(11), pg 19(1).
- Donofrio, Phyllis. “CICS-A Programmer’s Reference”, McGraw-Hill, 1991.
- Horswill, John & Hursley CICS Development Team, “Designing &
Programming CICS Applications”, O’Reilly, 2000.
- Hudders, Eugene S. “CICS-A guide to Internal Structure”, John Wiley
& Sons, 1994.
- IBM, “CICS”, http://www-4.ibm.com/software/ts/cics/, 2001.
- Lowe, Doug, “The CICS Programmer’s Desk Reference”, Mike Murach &
Associates, 2nd Ed, 1992.
- Menendez, Raul & Doug Lowe. “Murach’s CICS for the COBOL
Programmer”, Mike Murach & Associates, 2001.
- Nusphere Tech Notes, “ACID Transactions”
www.nusphere.com/products/library/acid_transactions.htm,
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Notes
