The role of UDDI in web services?

I heard people use the abbreviation UDDI in the context of web services, but I don’t understand what role it plays in web services. I went through the Java Web Services Up and Running Martin Kalin book and hardly mention UDDI anywhere.

According to my understanding from the network:

UDDI (Universal Description, Discovery, and Integration) is an XML-based registry for enterprises around the world to list themselves on the Internet. This helps companies find each other on the Internet and call their services. Basically, with UDDI, companies can register / describe their web services on the Internet so that other companies can find their WSDL and generate stubs from it.

It is right? Let's say I'm a web service manufacturer that is designed for a limited circle of users. I do not need to register with UDDI because I can give them the WSDL URL manually. Correctly?

Is UDDI essentially a Google Search-like service where a consumer can search for web services based on some keywords?

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Is UUDI essentially a Google search-like service where a consumer can search for web services based on some keywords?

In principle, yes, although the most frequently used analogs were the " yellow pages " of web services.

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