Modification History
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Release |
Comments |
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Release 1 |
This Unit first released with ICA11 Information and Communications Technology Training Package version 1.0 |
Unit Descriptor
This unit describes the performance outcomes, skills and knowledge required to understand business operations, identify entities and data, diagrammatically represent their relationships and prepare a data model.
Application of the Unit
This unit applies to systems designers who are required to prepare data models.
Licensing/Regulatory 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.
Pre-Requisites
Not applicable.
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
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Element |
Performance Criteria |
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Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
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1. Identify entities and relationships |
1.1 Analyse business data to understand operations 1.2 Identify boundaries of the system 1.3 Identify entities , attributes, data types and relationships of data 1.4 Review business rules to determine impact 1.5 Document relationships in an entity relationship diagram |
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2. Develop normalisation |
2.1 Identify suitable business data 2.2 Undertake normalisation of business data and document results 2.3 Compare normalisation results with entity relationship diagram 2.4 Reconcile differences between data |
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3. Validate model |
3.1 Validate data model with client 3.2 Resolve issues or recommendations 3.3 Document completed data model 3.4 Submit to client for final approval |
Required Skills and Knowledge
This section describes the skills and knowledge required for this unit.
Required skills
- analytical skills to analyse business data
- communication skills to liaise with clients
- problem-solving skills to solve problems that arise with the entity relationships
- technical skills to:
- develop entity-relationship models in tables
- relate identifier selection to business domain
- relate user specifications to data model
- transfer customer requirements into data model.
Required knowledge
- detailed knowledge of:
- database identifiers and their impact on database usability
- normalisation rules and processes
- type hierarchies, including sub-types, super-types, root-types related to development of structured data types
- validation procedures and processes
- function and features of:
- an approach to data modelling, such as the entity-relationship model
- keys, e.g. unique keys, composite keys, primary keys and primary index
- time stamps related to the use of keys
- user-defined types, structured types, reference types and user-defined functions
- particular business or domain.
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.
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Overview of assessment |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
Evidence of the ability to:
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Context of and specific resources for assessment |
Assessment must ensure access to:
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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:
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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.
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System may include: |
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Entities may include: |
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Data types may include: |
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Relationships may include: |
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Unit Sector(s)
Systems analysis and design
