The Globus Toolkit 4 (GT4) A brief introduction

Web Services, WSRF, OGSA and GT4

GT4 architecture

Writing a simple stateful Web service using the Java WS core of GT4 The following steps should be followed: 1.Define the service’s interface This is done in WSDL 2.Implement the service This is done in Java 3.Define the deployment parameters This is done with WSDD and JNDI 4.Compile everything and create a GAR file This is done with GT4 tools and Apache Ant 5.Deploy service This is done with GT4 tools

How to become a GT4 guru The following are required: Good XML skills Familiarity with WSDL and the WSRF and Globus- specific features thereof Good Java skills Familiarity with WSDD and the JNDI deployment files A little Apache Ant experience Excellent knowledge of the GT4 architecture and services (i.e. the programming API) Excellent knowledge of the GT4 tools and their usage (The tools include some handy clients)

Further reading The Anatomy of the Grid ( The Physiology of the Grid ( Official GT4.0 Documentation ( Globus Toolkit Primer ( The Globus Toolkit 4 Programmer’s Tutorial (