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Elements and Performance Criteria

1. Determine drawing requirements.
   • Design specifications and client needs are identified and analysed to determine drawing requirements.
   • Appropriate persons are consulted to clarify task specifications according to organisational requirements.
   • Equipment and software are selected, set up and checked according to task specifications.
2. Gather object parameters and measures.
   • Critical dimensions and data for required drawings are established and recorded.
   • Quality requirements are identified and applied to design.
   • Requirements in relation to accuracy and tolerances are identified according to organisational requirements.
3. Produce spatial drawings.
   • Software functions and features are accessed and used according to task specifications.
   • Preliminary drawings are prepared and reviewed in consultation with appropriate persons.
   • Drawings are checked against task specifications and industry-accepted standards.
   • Drawing integrity is checked and validated to ensure accuracy and quality.
   • Adjustments to drawings are made to meet task specifications and final drawings are disseminated to appropriate persons.
   • Data files are stored according to organisational requirements.

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.
Appropriate persons must include at least two of the following:	client colleague end user.
Software functions and features must include at least eight of the following:	arcs dimensions drawing features, such as polylines and texts drawing functions edit functions isometrics and perspectives methods for drawing lines plotting and printing using attributes to make a report view displays working with layers three-dimensional (3-D) techniques, including displaying 3-D views two-dimensional (2-D) coordinate plotting.

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Performance Evidence

A person demonstrating competency in this unit must satisfy the requirements of the elements, performance criteria, foundation skills and range of conditions of this unit. The person must also use a range of software program functions and features to produce two different computer-aided spatial drawings that meet technical specifications.

While producing the above computer-aided spatial drawings, the person must:

analyse the following specifications to translate requirements into design:

measurements and dimensions for objects and space

scope for making adjustments

technical objectives

timeframes for completing work tasks

allocated resources

specific client requirements

select and use appropriate equipment and software, as specified in the assessment conditions, to produce spatial drawings

communicate clearly with others to clarify task requirements and drawing detail

comply with organisational requirements relating to:

completing records and documentation

data storage and privacy of information

health and safety when using screen-based equipment

comply with industry-accepted drawing standards and legislation associated with the quality of computer-aided drawings, including:

accuracy of measurements, tolerances and information

complying with drawing principles, formats and standards for spatial drawings

exercise precision and accuracy in relation to drawing production

import a file containing a detail survey, including feature coding and digital terrain data, and produce a drawing containing appropriate symbols and a three-dimensional (3-D) terrain model

produce drawings using data imported from other software.

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Knowledge Evidence

A person demonstrating competency in this unit must demonstrate knowledge of:

display principles, including:

colour

composition

font type

legends

media

scale

size

text and line style

drawing principles, capabilities and uses in relation to the surveying and spatial information services industry

industry-accepted drawing standards and common formats, and precision and accuracy requirements for preparing computer-aided drawings

methods for validating drawings to identify errors

spatial data storage technology.

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