SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Select a map projection and transform data between projections or ellipsoids 
SAQA US ID UNIT STANDARD TITLE
11820  Select a map projection and transform data between projections or ellipsoids 
ORIGINATOR
SGB Surveying 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Physical Planning, Design and Management 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 6  Level TBA: Pre-2009 was L6 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard has been developed for the surveying occupational area and is in-tended for persons who aim to achieve career advancement within social and eco-nomic transformation by gaining surveying skills leading to a qualification based on unit standards. A person who has successfully completed this unit standard is able to se-lect a map projection and transform data between projections or ellipsoids.

A qualifying learner credited with this unit standard will be able to:
  • Display a knowledge and understanding of ellipsoidal representations of the Earth.
  • Transform data between ellipsoids.
  • Display a knowledge and understanding of map projections.
  • Select a map projection to meet specifications.
  • Transform data between a map projections and ellipsoids. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    NQF mathematics (Differential geometry of space curves and surfaces).
    NQF level 4 Language, literacy and communication. 

    UNIT STANDARD RANGE 
    Range statements are included with specific outcomes as necessary. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Display a knowledge and understanding of ellipsoidal representations of the Earth. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Surfaces of revolution are understood and explained. 

    ASSESSMENT CRITERION 2 
    2. Ellipsoidal coordinate systems are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Geocentric coordinates, longitude, geocentric latitude, geodetic latitude, and auxiliary latitudes.
     

    ASSESSMENT CRITERION 3 
    3. Reference systems and frames are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    International Celestial Reference Frame (ICRF), International Terrestrial Reference Frame (ITRF), World Geodetic System 1984 (WGS84), Clarke 1880.
     

    SPECIFIC OUTCOME 2 
    Transform data between ellipsoids. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Ellipsoidal transformation equations are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Bursa-Wolf, Molodensky-Badekas.
     

    ASSESSMENT CRITERION 2 
    2. Least squares estimation of the transformation parameters is understood and explained. 

    SPECIFIC OUTCOME 3 
    Display a knowledge and understanding of map projections. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Developable surfaces are understood and explained. 

    ASSESSMENT CRITERION 2 
    2. Transformation matrices are understood and explained. 

    ASSESSMENT CRITERION 3 
    3. The properties of map projections are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Conformality, equivalence, equidistance, and minimum-error.
     

    ASSESSMENT CRITERION 4 
    4. Projection distortions are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Equal area projections, conformal projections, and conventional projections.
     

    SPECIFIC OUTCOME 4 
    Select a map projection to meet specifications. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. The classification and naming of map projections is understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Azimuthal, Cylindrical, Conical, Aspect.
     

    ASSESSMENT CRITERION 2 
    2. The applications of map projections are understood and explained. 

    SPECIFIC OUTCOME 5 
    Transform data between a map projections and ellipsoids. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    1. Transformation equations are understood and explained. 
    ASSESSMENT CRITERION RANGE 
    Plate Carree, Universal Transverse Mercator (UTM), Gauss Conform, Alber's Equal Area, Lambert's Conformal Conic.
     

    ASSESSMENT CRITERION 2 
    2. Series approximation of the transformation equations is understood and ex-plained. 

    ASSESSMENT CRITERION 3 
    3. The transformation sequence (projection-ellipsoid-geocentric-ellipsoid-projection) is understood and explained. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    1. Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.

    2. Any institution offering learning that will enable achievement of this unit standard or will assess this unit standard must be accredited as a provider with the relevant ETQA and registered with FE / HE registrar.

    3. Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures.

    4. Anyone wishing to become an assessor or provider of learning must provide an affordable assessment learning service.

    Therefore anyone wishing to be assessed against this unit standard may apply to be assessed by any assessment agency, assessor or provider institution that is accred-ited by the relevant ETQA. 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Essential embedded knowledge is dealt with under the specific outcomes section where "Demonstrate KNOWLEDGE and UNDERSTANDING" is required. 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation or community. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsibly and effectively. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others). 

    UNIT STANDARD CCFO DEMONSTRATING 
    Display an understanding of the world as a set of related systems. 

    UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full development of each learner and the social and economic development of society at large. 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Supplementary Information
  • The relevant information is contained in one or more of the following docu-ments:

    - Text books
    - Academic journals 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  63589   National Diploma: Geographical Information Science  Level 5  NQF Level 05  Reregistered  2023-06-30  CETA 
    Core  63689   Bachelor of Arts: Geographical Information Science  Level 6  Level TBA: Pre-2009 was L6  Passed the End Date -
    Status was "Reregistered" 
    2018-06-30   
    Core  63711   Bachelor of Geographical Information Science (GISc)  Level 7  NQF Level 07  Passed the End Date -
    Status was "Reregistered" 
    2018-06-30   
    Fundamental  49063   National Certificate: Geographical Information Sciences  Level 5  Level TBA: Pre-2009 was L5  Reregistered  2023-06-30  CETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. ESRI South Africa 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.