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: 

Capture Geo-information from secondary data sources 
SAQA US ID UNIT STANDARD TITLE
258740  Capture Geo-information from secondary data sources 
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 6  Level TBA: Pre-2009 was L6 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2015-07-01  2018-06-30  SAQA 10105/14 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2019-06-30   2022-06-30  

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 will be useful to people who aim to achieve career advancement in the GISc area by gaining skills to capture Geo-information from secondary data sources under supervision.

A person credited with this unit standard is able to:
  • Prepare and digitise a map.
  • Prepare and scan a map document.
  • Heads-up digitise from a digital map document.
  • Capture co-ordinates and alphanumeric data from a document.
  • Import Geo-Information data from other secondary sources.
  • Clean and add identifiers to captured geo-data. 

  • 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 outcomes or areas of learning when starting to learn towards this unit standard:
  • Introductory spatial awareness.
  • Understanding of GIS data structures for data acquisition.
  • Spatial database features & attributes.
  • Undertake projections.
  • Demonstrate understanding of the basic concepts of databases and the ability to plan and create a simple database.
  • Communication at NQF Level 5.
  • Mathematical Literacy at NQF Level 5. 

  • UNIT STANDARD RANGE 
    The following scope and context applies to the whole unit standard:
  • Data type include:
    > Points, lines, polygons, features and attributes.

    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 
    Prepare and digitise a map from a digital map document using conventional digitising methods in compliance with industry best practice and procedures. 
    OUTCOME RANGE 
    Digitising tablet. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Source materials are prepared according to recognised digitising practices. 

    ASSESSMENT CRITERION 2 
    Suitable control points are identified and captured and the transformation result is assessed for accuracy. 
    ASSESSMENT CRITERION RANGE 
    Helmert, Affine.
     

    ASSESSMENT CRITERION 3 
    Data are captured according to task specifications. 
    ASSESSMENT CRITERION RANGE 
    Data structure, Data types, positional accuracy, conventions of digitising, point mode digitising, stream mode digitising.
     

    ASSESSMENT CRITERION 4 
    Captured data is assessed for completeness and accuracy. 

    SPECIFIC OUTCOME 2 
    Prepare and scan a map document according to task requirements and specifications. 
    OUTCOME RANGE 
    Scanner. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Source materials are prepared according to recognised scanning practices. 

    ASSESSMENT CRITERION 2 
    Data is scanned according to task specifications. 
    ASSESSMENT CRITERION RANGE 
    Format, resolution, colour depth.
     

    ASSESSMENT CRITERION 3 
    Captured data (digital image) is visually assessed and corrected for completeness and usability. 
    ASSESSMENT CRITERION RANGE 
    Sharpness, brightness and orientation.
     

    SPECIFIC OUTCOME 3 
    Prepare and digitise a map from a digital map document using the "heads-up" digitising method in compliance with industry best practice and procedures. 
    OUTCOME RANGE 
    Included but not limited to:
  • Scanned Maps, Ortho-Imagery. 

  • ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Suitable control points are identified and captured which will meet the task requirements in terms of accuracy. 

    ASSESSMENT CRITERION 2 
    Data is captured according to task specifications. 
    ASSESSMENT CRITERION RANGE 
    Data structure, Data types, positional accuracy.
     

    ASSESSMENT CRITERION 3 
    Data is transformed according to task specification and requirements. 
    ASSESSMENT CRITERION RANGE 
    Helmert, Affine.
     

    ASSESSMENT CRITERION 4 
    Captured data is assessed for completeness and accuracy that will meet the task requirements. 

    SPECIFIC OUTCOME 4 
    Capture co-ordinates and alphanumeric data from a survey or other document containing text and vector data. 
    OUTCOME RANGE 
    General plans, survey diagrams and other documents. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The nature of input data is determined from the source document. 
    ASSESSMENT CRITERION RANGE 
    Points, Lines, Polygons, Alphanumeric data.
     

    ASSESSMENT CRITERION 2 
    Data is captured according to task specifications. 
    ASSESSMENT CRITERION RANGE 
    Data, Metadata.
     

    ASSESSMENT CRITERION 3 
    Captured data is assessed for completeness and accuracy using the source document. 

    SPECIFIC OUTCOME 5 
    Import digital Geo-Information data from other secondary sources such as storage devices, file transfer devices, survey instruments, web facilities and portable hard disks, including CD's, DVDS and magnetic tapes. 
    OUTCOME RANGE 
    Raster, Vector and alphanumerical data. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The nature of input data is determined. 
    ASSESSMENT CRITERION RANGE 
    File Format, Format version, (E.g. DXF v12), File type, Meta data.
     

    ASSESSMENT CRITERION 2 
    Data is converted to required format in terms of the selected GIS project requirements. 
    ASSESSMENT CRITERION RANGE 
    E.g. SHP.
     

    ASSESSMENT CRITERION 3 
    Data is transformed according to task geometric specifications. 
    ASSESSMENT CRITERION RANGE 
    Include but not limited to:
  • Map projections, rotation, translation, scale.
     

  • ASSESSMENT CRITERION 4 
    Converted data is assessed for correctness in terms of the source data. 

    SPECIFIC OUTCOME 6 
    Clean and add identifiers to captured geospatial data in terms of the task requirements and specifications. 
    OUTCOME RANGE 
    Points, Lines, Polygons and Attributes. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Geometric errors in the geospatial data are identified and rectified in terms of industry/task requirements and best practices. 
    ASSESSMENT CRITERION RANGE 
    Including but not limited to:
  • Undershoots, overshoots, slivers, duplicate or missing labels, unclosed polygons.
     

  • ASSESSMENT CRITERION 2 
    Unique feature identifiers are assigned according to GIS requirements and practice. 

    ASSESSMENT CRITERION 3 
    Data is assessed for completeness using visual and computational methodologies. 

    ASSESSMENT CRITERION 4 
    The data is verified in comparison with the original source documents and data. 


    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 is dealt with under the specific outcomes section where "Demonstrate knowledge and understanding" is required. 

    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:
  • Point: Zero dimensional feature (bore hole or telephone pole).
  • Line: One dimensional feature (Road or river).
  • Polygon: Two dimensional feature (Dam or property).
  • Feature: Spatial object refer to in object orientated system.
  • Attributes: Non spatial description properties of all spatial feature types.
  • Conventions of digitising: Conventions of digitising refers to conventions utilised such as to digitise a river in the direction of the flow and polygons clockwise, etc.

    Notes to Assessors:
  • 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 judgments 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. 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  63689   Bachelor of Arts: Geographical Information Science  Level 6  Level TBA: Pre-2009 was L6  Reregistered  2018-06-30   
    Elective  63711   Bachelor of Geographical Information Science (GISc)  Level 7  NQF Level 07  Reregistered  2018-06-30   


    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.