1739 - Introduction to CICS for the Non-CICS specialist.pdf

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1、Introduction to CICS for the non-CICS SpecialistEzriel Gross Rocket SoftwareTuesday,Oct 22,2024:1:30 PM-2:30 PMSession:17392What is CICS and Who Uses ItPseudo Conversational ProgrammingCICS Application ServicesCICS ConnectivityCICS Resource DefinitionsCICS Supplied TransactionsCICS Web ServicesAgend

2、a3CICS Transaction Server-V6.1 14:22:51*(R)*CICS as a product100 billion transactions/day30 million users4What is CICS?CICS is an online transaction processing system.Middleware between the operating system and business applications.Manages the user interface.Retrieves and modifies data.Handles the

3、communication.CICS APIApplicationsz/OSFiles and Databases5CICS customers Banks Mortgage Account Reconciliations Payroll Brokerage Houses Stock Trading Trade Clearing Human Resources Insurance Companies Policy Administration Accounts Receivables Claims Processing$6The two ways to process input are ba

4、tch and online.Batch Batch requests are saved then processed sequentially.After all requests are processed the results are transmitted.Used for order entry processing such as warehouse applications.Online Online requests are received randomly and processed immediately.Results are transmitted as soon

5、 as they are available.Response time tends to be sub-second.Used for applications such as credit card authorization.Batch versus online programs7Large volume of business transactions to be rapidly and accurately processedMultiple users,single/sysplex or distributedWith potentially:A huge number of u

6、sers Simultaneous access to data A large volume of data residing in multiple database typesIntense security and data integrity controls necessaryThe access to the data is such that:Each user has the perception of being the sole user of the system A set of changes is guaranteed to be logically consis