Descriptions Designing and Programming CICS Applications: Integrating Existing Mainframe Applications with New Technologies for Free
CICS is an application server that delivers industrial-strength, online transaction management for critical enterprise applications. Proven in the market for over 30 years with many of the world's leading businesses, CICS enables today's customers to modernize and extend their applications to take advantage of the opportunities provided by e-business while maximizing the benefits of their existing investments.Designing and Programming CICS Applications will benefit a diverse audience. It introduces new users of IBM's mainframe (OS/390) to CICS features. It shows experienced users how to integrate existing mainframe systems with newer technologies, including the Web, CORBA, Java, CICS clients, and Visual Basic; as well as how to link MQSeries and CICS.Each part of Designing and Programming CICS Applications addresses the design requirements for specific components and gives a step-by-step approach to developing a simple application. The book reviews the basic concepts of a business application and the way CICS meets these requirements. It then covers a wide range of application development technologies, including VisualAge for Java, WebSphere Studio, and Visual Basic. Users learn not only how to design and write their programs but also how to deploy their applications.Designing and Programming CICS Applications shows how to:
- Develop and modify existing COBOL applications
- Become familiar with the CICS Java environment and write a simple Java wrapper for a COBOL application
- Develop a web front end using servlets, JSP and JavaBeans.
- Link the web front end to an existing COBOL application using CORBA
- Write a Visual Basic application to develop a customer GUI
- Link an existing COBOL application using a CICS Client ECI call
- Develop a Java application using Swing as an MQSeries Client
- Use the MQSeries-CICS bridge to access an existing COBOL application
Unfortunately, the committee that wrote the book couldn't decide whether it was for new or advanced users. The authors spend the first 100 pages discussing application design parameters for COBOL programs in CICS before mentioning other programming technologies. By turns the book assumes familiarity with CICS then covers basics in page after page of detail. The committee curse is also evident in the disjointed and academic prose style that often makes it hard to grasp the point the authors are trying to make. The Java Component is introduced via a Web-based bolt-on customers can use to check their accounts. Most IBM Java development is with VisualAge for Java, well covered in Wiley's Enterprise Development With VisualAge For Java, but not here. This pattern is repeated in the other sections. CICS development tools generate code from forms, which in part justifies the emphasis on design but assumes you understand the tools. This produces a curious state of mind you finally recognise as the one you experienced with your first childhood-painting-by-numbers set. Unless you're already familiar with COBOL, Java, VB and the CICS tools to work with them you'll spend more time looking elsewhere for explanations than reading here.
Much of those explanations you'll find in the CICS reference library (for CICS TS for OS/390 v1.3) which is on the CD in pdf format--for maximum inconvenience--along with the application. --Steve Patient
CICS is an application server that delivers industrial-strength, online transaction management for critical enterprise applications. Proven in the market for over 30 years with many of the world's leading businesses, CICS enables today's customers to modernize and extend their applications to take advantage of the opportunities provided by e-business while maximizing the benefits of their existing investments.Designing and Programming CICS Applications will benefit a diverse audience. It introduces new users of IBM's mainframe (OS/390) to CICS features. It shows experienced users how to integrate existing mainframe systems with newer technologies, including the Web, CORBA, Java, CICS clients, and Visual Basic; as well as how to link MQSeries and CICS.Each part of Designing and Programming CICS Applications addresses the design requirements for specific components and gives a step-by-step approach to developing a simple application. The book reviews the basic concepts of a business application and the way CICS meets these requirements. It then covers a wide range of application development technologies, including VisualAge for Java, WebSphere Studio, and Visual Basic. Users learn not only how to design and write their programs but also how to deploy their applications.Designing and Programming CICS Applications shows how to:
- Develop and modify existing COBOL applications
- Become familiar with the CICS Java environment and write a simple Java wrapper for a COBOL application
- Develop a web front end using servlets, JSP and JavaBeans.
- Link the web front end to an existing COBOL application using CORBA
- Write a Visual Basic application to develop a customer GUI
- Link an existing COBOL application using a CICS Client ECI call
- Develop a Java application using Swing as an MQSeries Client
- Use the MQSeries-CICS bridge to access an existing COBOL application
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