NZQA Expiring unit standard
6771 version 5
Page 1 of 4
Title
Create database access for a computer application using structured
query language
Level
6
Credits
10
Purpose
People credited with this unit standard are able to: review
requirements for database access for a computer application
using structured query language (SQL); and design, write, test,
and document programs for a computer application that
accesses a database using SQL. The performance of all
outcomes is to a standard that is expected in a professional
environment.
Classification
Computing > Software Development - Programming
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Open. The credit value of this unit standard is calculated
assuming a person has the prior knowledge and skills to create
a computer application using a 3GL.
Explanatory notes
1
2
This unit standard is
Performance of all outcomes is to beexpiring
carried out in accordance with organisation
standards and procedures, unless otherwise stated. Organisation standards and
The term computer application refers to any significant computer application, e.g. an
accounting system, commercial quality entertainment, or graphics manipulation
program.
procedures may cover: quality assurance, documentation, security, communication,
health and safety, and personal behaviour. An example of the standards expected is
the standards found in ISO 9000 Certified Organisations.
3
Performance of all outcomes is to be completed within the normal range of time that
would be expected in a professional environment, e.g. in a commercial or
government organisation.
4
Performance of all outcomes is to be within the normal range of cost, or cost
estimate, that would be expected in a commercial environment.
5
Performance of all outcomes complies with the laws of New Zealand, especially with
regard to copyright, privacy, health and safety, and consumer rights.
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
6771 version 5
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Review the requirements for database access for a computer application using SQL.
Evidence requirements
1.1
The review identifies and explains the feasibility of the requirements.
1.2
The review identifies the database access objectives and critical performance
factors.
1.3
The review estimates the development effort required so that the cost may be
estimated.
1.4
A review procedure is adopted that ensures the outcomes meet the database
access requirements.
Outcome 2
Design database access for a computer application using SQL.
Evidence requirements
2.1
The design implements user requirements.
2.2
The database structure resembles the output from the data analysis.
2.3
The structure of each table in the database adheres to the third normal form.
2.4
The methods of accessing the data are identified.
2.5
The key relationships between the tables within the database are identified.
2.6
This unit standard is
The data types for primary and foreign keys are consistent throughout the
database.
expiring
Outcome 3
Write program code for database access for a computer application using SQL.
Evidence requirements
3.1
The program code implements the application design.
3.2
The program code uses language constructs that facilitate the understanding of
the code.
3.3
The program code utilises the optimising features of the languages being used.
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
6771 version 5
Page 3 of 4
3.4
The program code uses language instructions that facilitate the understanding
of the code.
3.5
The program code uses language constructs that facilitate the understanding of
the code.
3.6
Tables joined in a query are essential to its outcome.
3.7
The program code uses constructs that preserve the integrity of the data being
accessed by multiple users and processes.
3.8
Global data sharing is minimised to enable weak coupling, and modules exhibit
functional cohesion.
Outcome 4
Test programs for a computer application that accesses a database using SQL.
Evidence requirements
4.1
Testing checks all program logic paths.
4.2
The program code is corrected to eliminate errors identified through testing.
4.3
Testing verifies that the database access functions in the required environment.
4.4
Testing verifies that the database access performs according to the design
requirements.
4.5
Testing verifies that the database access functions according to the design
requirements.
Outcome 5
This unit standard is
Evidence requirements
expiring
Document programs for a computer application that accesses a database using SQL.
5.1
The documentation enhances the understanding of the program code.
5.2
The documentation complements the self-documenting attributes of the
program code.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
6771 version 5
Page 4 of 4
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
8 July 1996
31 December 2015
Revision
2
28 November 2000
31 December 2015
Review
3
17 October 2008
31 December 2015
Rollover
4
21 July 2011
31 December 2015
Rollover
5
16 April 2015
31 December 2017
Consent and Moderation Requirements (CMR) reference
0011
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
This unit standard is
expiring
NZQA National Qualifications Services
SSB Code 130301
 New Zealand Qualifications Authority 2016