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Evidence Guide: CPPSIS5054 - Perform geodetic surveying computations

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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

 

CPPSIS5054 - Perform geodetic surveying computations

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

Prepare for geodetic surveying computations.

  1. Task requirements are identified and required geodetic computations determined in consultation with appropriate persons.
  2. Industry-accepted standards relating to accuracy and tolerances are identified according to organisational requirements.
  3. Computational equipment is selected according to task and organisational requirements.
Task requirements are identified and required geodetic computations determined in consultation with appropriate persons.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Industry-accepted standards relating to accuracy and tolerances are identified according to organisational requirements.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Computational equipment is selected according to task and organisational requirements.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Perform computations on reference surface.

  1. Relevant reference surface is selected according to required geodetic computations.
  2. Geodetic data is reduced to identified reference surface according to industry-accepted standards and using computational equipment.
  3. Geodetic components for reference surface are identified and computed according to industry-accepted standards.
  4. Computations on reference surface are identified and performed according to standards.
  5. Reference surface computations are checked and problems resolved according to standards and organisational requirements.
  6. Reference surface (spheroid) coordinates are converted to projection plane coordinates according to standards.
Relevant reference surface is selected according to required geodetic computations.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Geodetic data is reduced to identified reference surface according to industry-accepted standards and using computational equipment.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Geodetic components for reference surface are identified and computed according to industry-accepted standards.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Computations on reference surface are identified and performed according to standards.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Reference surface computations are checked and problems resolved according to standards and organisational requirements.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Reference surface (spheroid) coordinates are converted to projection plane coordinates according to standards.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Perform computations on projection plane.

  1. Relevant projection plane is selected according to required geodetic computations.
  2. Data is reduced to required projection plane according to standards.
  3. Geodetic components for projection plane are identified and computed according to standards.
  4. Projection plane coordinates are converted to reference surface (spheroid) coordinates according to standards.
Relevant projection plane is selected according to required geodetic computations.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Data is reduced to required projection plane according to standards.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Geodetic components for projection plane are identified and computed according to standards.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Projection plane coordinates are converted to reference surface (spheroid) coordinates according to standards.

Completed
Date:

Teacher:
Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions.

1.

Prepare for geodetic surveying computations.

1.1.

Task requirements are identified and required geodetic computations determined in consultation with appropriate persons.

1.2.

Industry-accepted standards relating to accuracy and tolerances are identified according to organisational requirements.

1.3.

Computational equipment is selected according to task and organisational requirements.

2.

Perform computations on reference surface.

2.1.

Relevant reference surface is selected according to required geodetic computations.

2.2.

Geodetic data is reduced to identified reference surface according to industry-accepted standards and using computational equipment.

2.3.

Geodetic components for reference surface are identified and computed according to industry-accepted standards.

2.4.

Computations on reference surface are identified and performed according to standards.

2.5.

Reference surface computations are checked and problems resolved according to standards and organisational requirements.

2.6.

Reference surface (spheroid) coordinates are converted to projection plane coordinates according to standards.

3.

Perform computations on projection plane.

3.1.

Relevant projection plane is selected according to required geodetic computations.

3.2.

Data is reduced to required projection plane according to standards.

3.3.

Geodetic components for projection plane are identified and computed according to standards.

3.4.

Projection plane coordinates are converted to reference surface (spheroid) coordinates according to standards.

Required Skills and Knowledge

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions.

1.

Prepare for geodetic surveying computations.

1.1.

Task requirements are identified and required geodetic computations determined in consultation with appropriate persons.

1.2.

Industry-accepted standards relating to accuracy and tolerances are identified according to organisational requirements.

1.3.

Computational equipment is selected according to task and organisational requirements.

2.

Perform computations on reference surface.

2.1.

Relevant reference surface is selected according to required geodetic computations.

2.2.

Geodetic data is reduced to identified reference surface according to industry-accepted standards and using computational equipment.

2.3.

Geodetic components for reference surface are identified and computed according to industry-accepted standards.

2.4.

Computations on reference surface are identified and performed according to standards.

2.5.

Reference surface computations are checked and problems resolved according to standards and organisational requirements.

2.6.

Reference surface (spheroid) coordinates are converted to projection plane coordinates according to standards.

3.

Perform computations on projection plane.

3.1.

Relevant projection plane is selected according to required geodetic computations.

3.2.

Data is reduced to required projection plane according to standards.

3.3.

Geodetic components for projection plane are identified and computed according to standards.

3.4.

Projection plane coordinates are converted to reference surface (spheroid) coordinates according to standards.

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 accurately perform geodetic surveying computations for two different surveying tasks.

While performing the above geodetic surveying computations, the person must:

apply formulas to geodetic data and obtain correct results

communicate clearly with others to clarify work tasks

comply with organisational requirements and relevant standards essential to accuracy of:

calculating geodetic data

recording computations

exercise precision and accuracy in geodetic computations

perform calculations in a logical progression to solve geodetic surveying problems

perform point to point calculations on:

projection plane

spheroid

relate reference surfaces to geodetic components

check accuracy of computations and resolve errors

select and use the following computational equipment to perform geodetic surveying computations: scientific or programmable calculator or a software application that includes surveying calculations

comply with organisational requirements relating to completing records and documentation.

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

industry-accepted standards relating to accuracy and precision for geodetic surveying data

common terms used in geodetic surveying calculations

computing aids and software used to perform geodetic computations

data reduction techniques

industry-accepted methods for validating data to identify errors and discrepancies

methods to perform projection plane computations relating to the following:

angle or bearing calculations on Map Grid of Australia (MGA)

arc to chord corrections

grid bearings

grid convergence

latitude and longitude to grid coordinates

point and line scale factor

point to point calculations

project zone calculations

transforming coordinate axes

using MGA and Geocentric Datum of Australia software

zone to zone transformations

methods to perform reference surface computations relating to the following:

meridian convergence

point to point calculations

principle radii

spheroidal distance from observed distance.

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 one of the following:

client

colleague

end user

manager

registered or qualified surveyor.