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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Geo-reference image / remote sense data according to specifications 
SAQA US ID UNIT STANDARD TITLE
116817  Geo-reference image / remote sense data according to specifications 
ORIGINATOR
SGB Geographical Information Sciences 
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 4  NQF Level 04  5 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "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 GIS and Remote Sensing occupational areas and is intended for persons who aim to achieve career advancement by gaining Remote Sensing skills leading to qualification based on unit standards. A person who has successfully completed this unit standard is able to perform geo-referencing and or ortho-rectification of imagery and remotely sensed data according to specifications. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
  • Understanding of GISc SA4.
  • Understanding of GISc DA1.
  • Understanding of performing raster structural manipulation.
  • Understanding of GISc DA4. 
    		•

    UNIT STANDARD RANGE 
    Remotely sensed data including, but not limited to: Aerial Photographs, Satellite Images, Radar, Sonar images.

    A person credited with this unit standard is able to:
  • Prepare data sets for geo-referencing and or ortho-rectification according to specifications.
  • Perform geo-referencing and or ortho-rectification of imagery.
  • Evaluate resultant image according to specifications. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Prepare data sets for geo-referencing and or ortho-rectification of imagery according to specifications. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Reference data sets are sourced and evaluated for suitability according to objectives of ultimate application. 
    ASSESSMENT CRITERION RANGE 
    Field data, maps, DEMs, existing geo-referenced images.
     

    ASSESSMENT CRITERION 2 
    Framework for geo-referencing is prepared according to objectives of ultimate application. 

    ASSESSMENT CRITERION 3 
    Resampling methodology is selected according to specifications of ultimate application and intended analysis. 

    SPECIFIC OUTCOME 2 
    Perform geo-referencing and or ortho-rectification of image. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Ground Control Points (GCP) are identified from source datasets. 

    ASSESSMENT CRITERION 2 
    GCP's are applied, evaluated and refined. 
    ASSESSMENT CRITERION RANGE 
    RMS (Root Mean Square); number and distribution of GCP's.
     

    ASSESSMENT CRITERION 3 
    A suitable geometric transformation algorithm is selected and applied. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to Affine, Polynomial, Perspective.
     

    SPECIFIC OUTCOME 3 
    Evaluate resultant image according to specifications. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Resultant image fits reference data. 

    ASSESSMENT CRITERION 2 
    Resultant image suits specifications. 

    ASSESSMENT CRITERION 3 
    Metadata for resultant image is updated according to standards. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
    N/A 

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    According to SAQA rules, this section must describe the knowledge base required for competent performance and achievement of the unit standard which should represent what the learner has to understand and explain in the area of geo science environment. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems.
  • Reference data sets are sourced and evaluated for suitability according to objectives of ultimate application.
  • Resampling methodology is selected according to specifications of ultimate application and intended analysis.
  • Ground Control Points (GCP) are identified from source datasets.
  • GCP's are applied, evaluated and refined.
  • Resultant image fits reference data.
  • Resultant image suits specifications. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/ group/ organisation or community.
  • None 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one's activities responsibly and effectively.
  • Reference data sets are sourced and evaluated for suitability according to objectives of ultimate application.
  • Framework for geo-referencing is prepared according to objectives of ultimate application.
  • Ground Control Points (GCP) are identified from source datasets.
  • GCP's are applied, evaluated and refined. 
    		•

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information.
  • Reference data sets are sourced and evaluated for suitability according to objectives of ultimate application.
  • Resampling methodology is selected according to specifications of ultimate application and intended analysis.
  • Ground Control Points (GCP) are identified from source datasets.
  • GCP's are applied, evaluated and refined.
  • Resultant image fits reference data.
  • Resultant image suits specifications. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations.
  • None 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others).
  • Reference data sets are sourced and evaluated for suitability according to objectives of ultimate application.
  • Framework for geo-referencing is prepared according to objectives of ultimate application.
  • Resampling methodology is selected according to specifications of ultimate application and intended analysis. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Display an understanding of the world as a set of related systems.
  • Reference data sets are sourced and evaluated for suitability according to objectives of ultimate application.
  • Resampling methodology is selected according to specifications of ultimate application and intended analysis.
  • Resultant image fits reference data. 
    		•

    UNIT STANDARD ASSESSOR CRITERIA 
    Assessors should keep the following principles in mind when designing and conducting assessments against this unit standard:
  • Focus the assessment activities on gathering evidence in terms of the main outcome expressed in the title to ensure assessment is integrated rather than fragmented. Remember we want to declare the person competent in terms of the title. Where assessment at title level is unmanageable, then focus assessment around each specific outcome, or groups of specific outcomes.
  • Make sure evidence is gathered across the entire range, wherever it applies. Assessment activities should be as close to the real performance as possible, and where simulations or role-plays are used, there should be supporting evidence to show the candidate is able to perform in the real situation.
  • Do not focus the assessment activities on each assessment criterion. Rather make sure the assessment activities focus on outcomes and are sufficient to enable evidence to be gathered around all the assessment criteria.
  • The assessment criteria provide the specifications against which assessment judgements should be made. In most cases, knowledge can be inferred from the quality of the performances, but in other cases, knowledge and understanding will have to be tested through questioning techniques. Where this is required, there will be assessment criteria to specify the standard required.
  • The task of the assessor is to gather sufficient evidence, of the prescribed type and quality, as specified in this unit standard, that the candidate can achieve the outcomes again and again and again. This means assessors will have to judge how many repeat performances are required before they believe the performance is reproducible.
  • All assessments should be conducted in line with the following well documented principles of assessment: appropriateness, fairness, manageability, integration into work or learning, validity, direct, authentic, sufficient, systematic, open and consistent. 
    		•

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

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  58784   National Diploma: Geospatial Image Analysis  Level 5  NQF Level 05  Passed the End Date -
    Status was "Reregistered"     		 2020-07-30  As per Learning Programmes recorded against this Qual 
    Elective  49063   National Certificate: Geographical Information Sciences  Level 5  Level TBA: Pre-2009 was L5  Passed the End Date -
    Status was "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.
     
    NONE 


    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.