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| Preface | |
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| Acknowledgements | |
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| Perspectives on global data | |
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| Geographic Information Systems | |
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| A brief primer on the nature of GIS | |
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| The rise of the Internet | |
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| Advantages of distributed information systems | |
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| Examples of distributed information | |
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| Overview of this book | |
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| GIS and the Internet | |
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| The advantages of online GIS | |
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| Issues arising in the new medium | |
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| Some examples of online GIS | |
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| Large-scale spatial data collection projects | |
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| Differences between stand-alone and online GIS | |
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| Options for implementing online GIS | |
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| Server-side GIS operations | |
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| Web servers | |
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| Server processing | |
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| Online map building | |
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| The use of high-level scripting languages | |
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| Implementing geographic queries | |
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| Concluding remarks | |
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| Client-side GIS operations | |
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| Introduction | |
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| Image maps | |
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| Use of Javascript in client side operations | |
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| The use of Java applets | |
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| Examples | |
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| Conclusion | |
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| Introduction to markup | |
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| Markup languages | |
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| XML: structural ideas | |
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| The Document Type Definition | |
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| XML namespaces | |
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| XML schema | |
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| XQL: the XML query language | |
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| Where to find DTDs and other specifications | |
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| The future | |
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| Further reading | |
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| Information networks | |
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| What is an information network? | |
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| What can information networks do? | |
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| The organisation of information networks | |
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| Issues associated with information networks | |
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| Information networks in practice | |
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| Distributed objects and OpenGIS | |
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| Introduction | |
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| The standards organisations | |
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| Online objects and their metadata: CORBA | |
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| The geographic markup language | |
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| Metadata on the Web | |
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| Introduction | |
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| The Dublin Core | |
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| PICS: platform for Internet content selection | |
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| The Resource Description Framework | |
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| Metadata standards | |
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| Australasian standards | |
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| Metadata in the USA | |
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| The situation in Europe | |
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| Data warehouses | |
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| What is a data warehouse? | |
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| Geographic data warehouses | |
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| The structure of a data warehouse | |
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| Issues in building data warehouses | |
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| Organisation and operation | |
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| Data mining | |
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| Examples | |
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| Standards for online GIS warehouses | |
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| The future of geographic data warehouses | |
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| New technologies for spatial information | |
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| Visions of a global GIS | |
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| Intelligent systems | |
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| Mobile computing | |
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| From online GIS to virtual worlds | |
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| Glossary | |
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| Bibliography | |
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| Index | |