SAQA

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SOUTH AFRICAN QUALIFICATIONS AUTHORITY

REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE:

Perform spatial error analysis

SAQA US ID	UNIT STANDARD TITLE
258757	Perform spatial error analysis
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	2
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 GISc occupational area and is intended for persons who aim to achieve career advancement by gaining GISc skills leading to a qualification based on unit standards. A person who has successfully completed this unit standard is able to perform spatial error analysis.

A person credited with this unit standard is able to:

Demonstrate knowledge and understanding of positional error.

Demonstrate knowledge and understanding of the spatial quality of data.

Demonstrate knowledge and understanding of the propagation of spatial error.

Demonstrate the ability to analyze spatial error.

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING

Mathematics at NQF Level 5

Communication at NQF Level 5.

UNIT STANDARD RANGE

Range statements are included with specific outcomes as necessary.

Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1

Demonstrate knowledge and understanding of positional error.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

Measures of positional error are understood and explained in relation to spatial error analysis.

ASSESSMENT CRITERION RANGE

Including but not limited to Variance, co-variance matrix, error el-lipse.

ASSESSMENT CRITERION 2

Multi-dimensional probability distributions are understood and explained.

ASSESSMENT CRITERION RANGE

Including but not limited to Normal distribution, t-distribution.

ASSESSMENT CRITERION 3

Measures of positional error for spatial features are understood and explained.

ASSESSMENT CRITERION RANGE

Point, linear, area, surface.

SPECIFIC OUTCOME 2

Demonstrate knowledge and understanding of the spatial quality of data.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

The relationship between data format and spatial accuracy is understood and explained in relation to spatial error analysis.

ASSESSMENT CRITERION RANGE

Data format refers to precision (real vs. integer).

ASSESSMENT CRITERION 2

Sources of random variation are understood, identified and managed in relation to spatial error analysis.

ASSESSMENT CRITERION RANGE

Includes but not limited to instrument accuracy, observation pro-cedure, non systematic spatial distortions, scale, relative vs. absolute ac-curacy, temporal consistency, logical consistency.

ASSESSMENT CRITERION 3

Generalization and cartographic license are identified and accounted for in terms of quality of data.

SPECIFIC OUTCOME 3

Identify and manage spatial errors leading to propa-gation.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

Errors due to processing are identified and corrective measures implemented in relation to spatial error analysis.

ASSESSMENT CRITERION 2

Errors in topological analysis are identified and corrective measures imple-mented in relation to spatial error analysis.

ASSESSMENT CRITERION 3

Propagation and cascading of errors are identified and explained in relation to spatial error analysis.

SPECIFIC OUTCOME 4

Perform spatial error analysis.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1

Sensitivity analysis is understood and performed in terms of spatial error analy-sis.

ASSESSMENT CRITERION 2

Data quality reports are generated and compiled in terms of spatial error analy-sis.

ASSESSMENT CRITERION 3

The spatial error in a derived data set is analyzed and reported in terms of spa-tial error analysis.

UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS

Anyone assessing a learner against this unit standard must be registered as an as-sessor with the relevant ETQA.

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.

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

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.

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 effec-tively.

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 eco-nomic 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

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	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

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.

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