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Evidence Guide: ICAWEB515A - Implement and use web services

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

ICAWEB515A - Implement and use web services

What evidence can you provide to prove your understanding of each of the following citeria?

Use eXtensible markup language (XML) to provide information

  1. Create XML data structures from various data sources
  2. Manipulate XML data structures using a common application programming interface (API)
  3. Use namespaces to scope elements from multiple XML documents
  4. Validate XML data structures using a schema
  5. Map and transform an XML document from one schema to another
Create XML data structures from various data sources

Completed
Date:

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Manipulate XML data structures using a common application programming interface (API)

Completed
Date:

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Use namespaces to scope elements from multiple XML documents

Completed
Date:

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Validate XML data structures using a schema

Completed
Date:

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Map and transform an XML document from one schema to another

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use the web service description language (WSDL) to promote a web service

  1. Understand the purpose of the WSDL
  2. Identify the three main elements that comprise the web service description language
  3. Build a WSDL file
  4. Provide web access to a WSDL file via a uniform resource locator (URL)
Understand the purpose of the WSDL

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify the three main elements that comprise the web service description language

Completed
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Build a WSDL file

Completed
Date:

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Provide web access to a WSDL file via a uniform resource locator (URL)

Completed
Date:

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Use universal description, discovery, and integration (UDDI) to locate and retrieve information about a public web service

  1. Identify the purpose of UDDI
  2. Understand the differences between public, extra-enterprise and intra-enterprise UDDI registry deployments
  3. Locate and retrieve information about a public web service using UDDI
  4. Identify the relationship between WSDL and UDDI
Identify the purpose of UDDI

Completed
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Understand the differences between public, extra-enterprise and intra-enterprise UDDI registry deployments

Completed
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Locate and retrieve information about a public web service using UDDI

Completed
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Identify the relationship between WSDL and UDDI

Completed
Date:

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Access web services using the simple object access protocol (SOAP)

  1. Identify the purpose of SOAP
  2. Determine the relationship between UDDI and SOAP
  3. Identify the basic structure and processing of a SOAP message
  4. Retrieve an XML document from a public web service using SOAP
Identify the purpose of SOAP

Completed
Date:

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Determine the relationship between UDDI and SOAP

Completed
Date:

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Identify the basic structure and processing of a SOAP message

Completed
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Retrieve an XML document from a public web service using SOAP

Completed
Date:

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Implement a web service

  1. Outline a basic web service architecture
  2. Implement, test and publish a web service
  3. Incorporate and test a web service into an application
Outline a basic web service architecture

Completed
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Implement, test and publish a web service

Completed
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Incorporate and test a web service into an application

Completed
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Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the ability to:

transform data from relational or other native data sources into XML

validate an XML document using a predefined schema

provide access to business functionality via a WSDL file

locate a public web service business function and include it in a website using UDDI and SOAP

implement a web service:

according to business requirement specifications

that adheres to industry standards.

Context of and specific resources for assessment

Assessment must ensure access to:

web service business requirement specifications

industry standards published by the W3C

platform-specific documentation and help files describing the syntax and use of proprietary technologies

a simulated development environment incorporating the following elements:

relational database server

integrated development environment (IDE), including related frameworks, APIs and associated proprietary classes required to implement web services and their enabling technologies

web server

web browsers

XML editors

XPath testing utilities

appropriate learning and assessment support when required

modified equipment for people with special needs.

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:

written or verbal questioning to assess candidate’s knowledge of XML data structures, syntax and validation techniques

observation of candidate demonstrating:

data transformation from relational data to validated XML

the use of XPath queries to extract information from XML or transform XML data structures

evaluation of candidate’s project incorporating all elements of this unit of competency, including both web service publication and web service consumption.

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, where appropriate.

Assessment processes and techniques must be culturally appropriate, and suitable to the communication skill level, language, literacy and numeracy capacity of the candidate and the work being performed.

Indigenous people and other people from a non-English speaking background may need additional support.

In cases where practical assessment is used it should be combined with targeted questioning to assess required knowledge.

Required Skills and Knowledge

Required skills

analytical skills to:

analyse functional requirements

assess proposed web service architectures within the context of existing enterprise technologies, infrastructure and industry standards

determine appropriate enabling technologies required to implement a web service’s functional requirements

determine appropriate web service architectures as prescribed by the selected proprietary or industry standards

determine development environments appropriate to planned web service architectures and functionality

communication skills to:

describe and evaluate web service architectures with system analysts and enterprise architects

negotiate enterprise web service requirements with clients

negotiate resource requirements, project timeframes and project deliverables

propose web service functionality to meet the business needs of clients

learning skills to:

acquire the skills and knowledge required for the implementation of web services

stay at the cutting edge of industry developments and industry standards

literacy skills to:

interpret associated industry and web service standards

interpret existing enterprise technology infrastructure documentation

write functional requirement specifications for a web service

planning and organising skills to:

plan an effective solution for a web service

organise resources, documentation and infrastructure elements required for the implementation of a web service

problem-solving skills to:

debug code, identify code bugs and resolve all code exceptions

identify and implement solutions to problems with web service architecture and functionality

identify problems with XML document schemas and implement solutions

recommend solutions to problems or deficiencies associated with the implementation of web services

research skills to:

enhance knowledge of industry standards and trends related to web service architectures and enabling technologies

identify and locate sources of information that provide solutions to technical problems

identify sources of information and documentation required to plan and implement a web service

technical skills to:

implement complex code algorithms required for web service functionality

implement exception handling routines in code

re-factor code to improve the efficiency of the code

use an integrated development environment to build web service components

write code to implement a web service.

Required knowledge

integrated-development environments

web development technologies

web-service architecture.

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

XML data structures may include:

electronic business XML (ebXML)

XML 1.0 specification produced by the world wide web consortium (W3C).

Various data sources may include:

comma separated value files

native data sources, such as ASCII or the Java-type system

object linking and embedding (OLE) DB data sources, such as spreadsheet files

relational database management systems, such as:

IBM DB2

Microsoft Structured Query Language (MS SQL) server

Microsoft Access

MySQL

Oracle

Ingres.

Common application programming interface may include:

ASP.Net and MSXML and associated APIs

Java XML API (JAXP)

simple API for XML (SAX)

document object model as described by W3C recommendation.

Schema may include:

document type definition (DTD) schema file

XML schema definition (XSD) file as described by W3C recommendation

XML-data reduced (XDR) schema definition file.

Map and transform may include:

eXtensible stylesheet language transformations (XSLT)

XLink

XPath 1.0 and XPath 2.0 queries

XPointer

XQuery.

Three main elements may include identifying:

contents and data types of web service messages

operations of web service messages

protocols of web service messages.

Public web service may include:

public web services located through UDDI registries.

Publish may include:

limiting access to the web service to a local intranet

making the web service available to the internet via a public UDDI registry

simulating the publication of the web service through a virtual machine infrastructure.