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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Use XML to provide information
   • Create XML data structures from various data sources
   • Manipulate XML data structures, using a common application programming interface (API)
   • Use namespaces to scope elements from multiple XML documents
   • Validate XML data structures, using a schema
   • Map, and transform, an XML document from one schema to another
2. Use WSDL to promote a web service
   • Understand the purpose of the web service description language (WSDL)
   • Identify the three main elements that comprise WSDL
   • Build a WSDL file
   • Provide web access to a WSDL file, via a uniform resource locator (URL)
3. Use UDDI to locate and retrieve information about a public web service
   • Identify the purpose of universal description, discovery and integration (UDDI)
   • Understand the differences between public, extra-enterprise and intra-enterprise, UDDI registry deployments
   • Locate, and retrieve information, about a public web service using UDDI
   • Identify the relationship between WSDL and UDDI
4. Access the web services using SOAP
   • Identify the purpose of simple object access protocol (SOAP)
   • Determine the relationship between UDDI and SOAP
   • Identify the basic structure and processing of a SOAP message
   • Retrieve an XML document from a public web service, using SOAP
5. Implement a web service
   • Outline a basic web service architecture
   • Implement, test and publish a web service
   • Incorporate and test a web service into an application

Performance Evidence

Evidence of the ability to:

transform data from relational or other native data sources, into an extensible markup language (XML)

validate an XML document, using a predefined schema

provide access to the business functionality via a web service description language (WSDL) file

locate a public web service business function, and include it in a website, using universal description, discovery and integration (UDDI), and a simple object access protocol (SOAP)

implement a web service according to the business requirements, specifications, and industry standards.

Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.

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Knowledge Evidence

To complete the unit requirements safely and effectively, the individual must:

summarise integrated development environments

summarise web development technologies

outline the web service architecture

describe the importance of XML language and data structures.

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