ITNP2B Examinable Material

• origins of web services:
  • explaining web services in the context of other approaches
  • describing the main characteristics and concepts of web services
  • briefly describing the main standards and standardisation bodies for web services
  • familiarity with XML schema definition, instantiation and namespaces
  • being able to explain a given schema and to write simple schemas
  • ability to write simple XPath queries
• service description:
  • explaining the purpose and main ideas of WSDL, including concepts such as types, messages, ports, bindings and services
  • being able to explain a given WSDL description, and to write basic WSDL descriptions
  • describing the philosophy and approach of UDDI, including concepts such as consumer, provider, registry, tModel and UUID
  • understanding practical limitations of UDDI
• web service access:
  • explaining web service addressing, including use of endpoint references and stateless/stateful services
  • describing the philosophy and approach of SOAP, including concepts such as envelope, header, body, multiRef, and various styles
• combining web services:
  • explaining the philosophy and approach of BPEL, including concepts such as workflow, business process, partner, orchestration and activity
  • understanding the major BPEL activities, such as assign, compensation, flow, invoke, receive, reply, sequence and throw
  • demonstrating an understanding of the flow concept in BPEL, and how it is realised through links
  • being able to read a BPEL description and to write simple BPEL
  • mapping between a flow diagram and BPEL sources/targets as well as transition conditions
  • explaining basic ideas about web service coordination and choreography
• other aspects of web services:
  • explaining basic ideas about web service security, including use of WS-Security, PKI and HTTPS
  • describing web service resources, including use of WSRF and EPRs
  • describing the principles behind RESTful web services
  • explaining the need for web service interoperability standards

Up one level to ITNP2B (Web Services)