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

Process and or create simple cartographic models under supervision 
SAQA US ID UNIT STANDARD TITLE
258643  Process and or create simple cartographic models under supervision 
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 5  Level TBA: Pre-2009 was L5  12 
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 occupational area and is intended for persons who aim to achieve career advancement by gaining GIS skills leading to qualification based on unit standards. A person who has successfully completed this unit standard will have an understanding of how to process and or create simple cartographic models under supervision.

A person credited with this unit standard is able to:
  • Understand the concept of cartographic modeling.
  • Interpret and execute an existing, simple cartographic model.
  • Understand and explain the stages in the development of a cartographic model.
  • Adopt a standard method for presenting a cartographic model. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the assumption that learners are already competent in terms of the following:
  • Perform basic spatial and hybrid queries under supervision.
  • Basic Algebra for NQF Level 4.
  • Communication at NQF Level 5.
  • Mathematical Literacy at NQF Level 5. 
    		•

    UNIT STANDARD RANGE 
    Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Understand the concept of cartographic modeling. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The learner understands and explains the terminology of cartographic models. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Model, cartographic model, input, output, operation and equation.
     
    		•

    ASSESSMENT CRITERION 2 
    Different types of inputs and outputs are understood and explained in relation to cartographic modeling. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Vector data, raster data, alphanumerical data, understanding that an output of one equation may be the input for another.
     
    		•

    ASSESSMENT CRITERION 3 
    Different types of operations and equations are understood and explained in relation to cartographic modeling. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Addition, subtraction, multiplication, division, buffering, overlays, intersection, union, XOR, clip, dissolve, merge, alphanumeric query statements.
     
    		•

    ASSESSMENT CRITERION 4 
    The need for standardisation is understood and explained in relation to cartographic modeling. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Terminology, legends, symbology, operations and methodologies.
     
    		•

    SPECIFIC OUTCOME 2 
    Interpret and execute an existing, simple cartographic model. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Commonly used symbology used in cartographic models is understood and explained under supervision. 
    ASSESSMENT CRITERION RANGE 
    Tomlin's original model and any other model available to the student (E.g. Idrisi model, ESRI model, ERDAS model).
     

    ASSESSMENT CRITERION 2 
    The holistic process addressed by the cartographic model is understood and explained under supervision. 

    ASSESSMENT CRITERION 3 
    The learner understands and explains the individual equations, including their parameters, of simple cartographic models. 
    ASSESSMENT CRITERION RANGE 
    E.g. Buffer operations can be single or multiple and require a buffer distance.
     

    ASSESSMENT CRITERION 4 
    The learner understands and explains error propagation through cartographic models. 

    ASSESSMENT CRITERION 5 
    The model is executed correctly and the validity of the result can be demonstrated under supervision. 
    ASSESSMENT CRITERION RANGE 
    Input, Operation, Output, Verification by inspection.
     

    SPECIFIC OUTCOME 3 
    Understand and explain the stages in the development of a cartographic model. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The problem to be addressed by a cartographic model is understood and explained in relation to the GISc analysis. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Analysis, conceptual model.
     
    		•

    ASSESSMENT CRITERION 2 
    The expected outputs from the cartographic model are identified and explained as well as their desired parameters. 
    ASSESSMENT CRITERION RANGE 
    Parameters include but are not limited to:
  • Geometric scale, resolution, accuracy, precision, associated alphanumerical data, data type, scale of measurement, area of interest.
     
    		•

    ASSESSMENT CRITERION 3 
    The inputs to the cartographic model and their required parameters are identified and explained. 
    ASSESSMENT CRITERION RANGE 
    Parameters include but are not limited to:
  • Geometric scale, resolution, accuracy, precision, associated alphanumerical data, data type, scale of measurement, area of interest.
     
    		•

    ASSESSMENT CRITERION 4 
    The processes to be used in the cartographic model are identified and explained as well as their required parameters. 

    SPECIFIC OUTCOME 4 
    Adopt a standard method for presenting a cartographic model. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    A standard symbology set is adopted for the cartographic model. 

    ASSESSMENT CRITERION 2 
    A consistent methodology for writing equations is adopted for the cartographic model. 

    ASSESSMENT CRITERION 3 
    The importance of the legend to the cartographic model is understood and explained for presenting a cartographic model. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines and the agreed ETQA procedures. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Essential embedded knowledge will be assessed through assessment of the specific outcomes in terms of the stipulated assessment criteria. Candidates are unlikely to achieve all the specific outcomes, to the standards described in the assessment criteria, without knowledge of the listed embedded knowledge. This means that for the most part, the possession or lack of the knowledge can be directly inferred from the quality of the candidate's performance. Where direct assessment of knowledge is required, assessment criteria have been included in the body of the unit standard.
  • Understanding process modelling.
  • Understanding problem solving.
  • Spatial thinking. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    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. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

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

    UNIT STANDARD NOTES 
    Terminology:
  • Cartographic Models: "Cartographic modelling, at its simplest, is a generic way of expressing and organising the methods by which spatial variables, and spatial operations, are selected and used to develop a GIS data model"; Heywood, et al; 2002, An Introduction to Geographical Information Systems, 2nd Edition, ISBN 0130 611980.

    Notes to Assessors:
  • Refer to Danna Tomlin's Map Algebra.
  • Synonyms and related concepts: Conceptual models, Data models, Flow charts of operations, Process models, Flow process models, Map algebra.
  • For the assessment criteria "The holistic process addressed by the cartographic model is understood and explained" the learner must understand the complete process from original inputs through to the result in relation to the problem, and not simply input-operation-output.
  • Once international standards for cartographic models have been introduced, these should be implemented here. 
    		•

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  63589   National Diploma: Geographical Information Science  Level 5  NQF Level 05  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.