Application
This unit applies to web developers who are responsible for creating data-driven web applications.
Prerequisites
Not applicable.
Elements and Performance Criteria
1. Connect to database | 1.1 Identify site data needs from technical requirements 1.2 Connect to database from web application using a web development language |
2. Retrieve data from database and display on web pages | 2.1 Retrieve data using structured query language (SQL) 2.2 Display data in the most appropriate control 2.3 Format data so that it is displayed in the most effective way |
3. Update database data from user input | 3.1 Update existing data stored in the database with user-supplied input 3.2 Insert data in the database with user-supplied input 3.3 Delete data stored in the database 3.4 Include error checking and validation |
Required Skills
Required skills
analytical skills to:
determine functional requirements
identify database access points
communication skills to liaise with clients
initiative and enterprise skills to provide feedback and recommend the most appropriate technology solutions
literacy skills to:
follow documented instruction from a supplied guide
interpret workplace instructions and other technical documents
planning and organisational skills to organise the most appropriate solution
problem-solving skills to:
identify and rectify website functional problems
identify and resolve bugs in the created code
select the most efficient and effective algorithms
research skills to:
find solutions to encountered problems
keep up-to-date with industry trends
technical skills to:
apply hypertext transfer protocol (HTTP)
apply web programming concepts
create hypertext markup language (HTML) or eXtensible hypertext markup language (XHTML) pages
create software in a web development language
create SQL statements
create aesthetically pleasing web pages.
Required knowledge
detailed knowledge of:
database structure
internet technology as it relates to the use of databases
programming control structures, object-oriented programming
SQL
web programming concepts, including:
authentication and web security
HTTP
session management
stateless programming.
Evidence Required
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: create a web application which accesses a database, displaying and modifying the database data provided by user input. |
Context of and specific resources for assessment | Assessment must ensure access to: requirements documentation web server database web development environment browsers 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: evaluation of a web application created to access, display and update data stored in a database verbal or written questioning to ensure knowledge of the impact of data-driven web applications. |
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. |
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.
Database may include: | Access DB2 Informix Ingres Microsoft SQL (MS SQL) server Mini SQL (mSQL) MySQL Oracle Sybase. |
Language may include: | ASP ASP.NET Coldfusion Perlscript PHP. |
User may include: | client external departments individuals internal departments. |
Sectors
Database
Employability Skills
This unit contains employability skills.
Licensing Information
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement but users should confirm requirements with the relevant federal, state or territory authority.