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		| Paper: | Chapter 42: How to find Resources in the Registry |  
		| Volume: | 382, The National Virtual Observatory: Tools and Techniques for Astronomical Research |  
		| Page: | 455 |  
		| Authors: | Greene, G.; Plante, R.L. |  
		| Abstract: | In the design or implementation of science applications, or simply to have a fast mechanism for finding specific VO enabled services, data, or tools, the NVO registry is a good place to start. This chapter will address how to find astronomical resources using a set of metadata criterion. We will present the available search tools and technologies in the context of two NVO searchable registries. These provide query interfaces ranging from a simple keyword search, to XPath queries, to web service description interfaces (see Chapter 43 on Registry Client). There is also a brief exploration into other IVOA registry search interfaces which share common resource schema descriptions and protocols for exchanging resources in the global VO registry network. |  
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