Distributed Applications Engineering

Client/server and distributed technologies have made great strides since their emergence in the late 1980s to become very popular in the IT industry today. This book illustrates techniques not only for designing GUI client/server applications, but also for managing complex application environments containing both legacy and new applications.
Topics covered in this book include

• The what, when and how of the three tier client/server model
• Coupling and dependency: key design factors in distributed systems
• Distributed application design alternatives for the enterprise
• The Federated application structure for integrating the applications of the enterprise
• A real-life case study of a major financial institution
• Systems Architects and senior technical staff
  Project Managers and Software Engineers involved with or interested in client/server computing, and final year undergraduate and postgraduate students will find this book useful.

Contenu
1 Introduction and Background.- 1. Introduction.- 2. Background and Context.- 2 The Distributed Application.- 3. The Three-Tier Application Architecture.- 4. The Three-Tier Architecture: An Object-Oriented Perspective Paul Taylor.- 3 Coupling and Dependency.- 5. Coupling in Distributed Systems.- 6. Software Dependency.- 4 Distributed Computing and the Enterprise.- 7. The Enterprise and the Distributed Application: Alternative Architectures.- 8. The Federation.- 9. Implementing the Federation.- 10. Experiences in a Financial Institution.- 11. Pulling it all Together.- I Appendix 1: Survey of Products.- Middleware.- SQL-based Middleware.- Pros and Cons of SQL-based Middleware.- Product Sets Using SQL-based Middleware.- RPC-Type Middleware.- DTP Monitors.- Object Brokers.- Message-Oriented Middleware.- Other Products.- Systems Management.- Standards.- Product Examples.- Information Management Services: Databases.- Network Services.- Appendix 2: Queue Organization.- MQSeries queues.- extpub queue Queue manager: dirsermgr.- rep-to-extpub queue Queue manager: dirsermgr.- newpub queue Queue manager: dirsermgr.- newsubs Queue manager: dirsermgr.- delsubs queue Queue manager: dirsermgr.- delpub queue Queue manager: dirsermgr.- rep-to-stopsubs queue Queue manager: dirsermgr.- reqmod queue Queue manager: dirsermgr.- rep-to-modpub queue Queue manager: dirsermgr.- deldom queue Queue manager: dirsermgr.- rep-to-reqmod queue Queue manager: dirsermgr.- extpub queue Queue manager: publisher.- newsubs queue Queue manager: publisher.- delsubs queue Queue Manager: publisher.- rep-to-delpub queue Queue manager: publisher.- reqmod queue Queue manager: publisher.- publication queue Queue manager: subscriber.-stopsubs queue Queue manager: subscriber.- modpub queue Queue manager: subscriber.- rep-to-deldom queue Queue manager: publisher or subscriber.- References.