Unit of competency Outline

Date retreived
22/07/2026 6:43 PM AWST

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Plan and prepare a master key system

Plan and prepare a master key system

Unit of competency
National Code
MEM20028
State Code
OEV36
TGA Status
Current
DTWD Status
Approved
Current Release Number
1.00
Current Release Date
19/12/2022
View on TGA
State Implementation and Classification
Approved Date
19/04/2023
Field of Education
030715 - Precision Metalworking
Original Release Date
19/04/2023
Nominal Hours
54
Description
This unit of competency defines the skills and knowledge required to create a new master key system for in-line pin tumbler cylinders up to and including a hierarchical great grand master key (GGMK) system and maisoning. It applies to manually developing a standard (even cut) progression in-line master key system and using a computer master keying package.Where a security survey or site assessment is required unit MEM20035 Perform a site security survey should also be selected.Where cross keying, sub-master keying and selective keying is required unit MEM20029 Develop and implement a master key system should also be selected.No licensing, legislative or certification requirements apply to this unit at the time of publication.Band: AUnit Weight: 4
Notes
Elements and Performance Criteria
1. Determine job requirements
  • 1.1 Follow standard operating procedures (SOPs)
  • 1.2 Comply with work health and safety (WHS) requirements at all times
  • 1.3 Identify job requirements from specifications
2. Assess customer requirements
  • 2.1 Discuss and confirm client requirements
  • 2.2 Review levels of security and access including customer assets, activities and existing security arrangements
  • 2.3 Interpret architectural plans, floor plans and charts when planning and preparing a master key system in line with scope of job requirements
  • 2.4 Prepare door and lock schedules and other appropriate documentation in accordance with SOPs
  • 2.5 Match customer requirements to the mechanical possibilities and limitations of master key systems
  • 2.6 Identify personal limitations in assessing design requirements for key systems and master key systems with supervisor in accordance with SOPs
3. Design master key system
  • 3.1 Apply principles of master keying in accordance with industry practice and organisational requirements
  • 3.2 Develop keying matrix to customer requirements, allowing for future system expansion and mechanical capabilities of system
  • 3.3 Produce key codes (code matrix) from mathematical permutations and calculations according to customer requirements
  • 3.4 Select key codes from matrix that maximise system security
  • 3.5 Develop key cutting and cylinder pinning charts
  • 3.6 Identify incidental master keys within progression charts
  • 3.7 Check and confirm there are no phantoms in the system
4. Finalise system design
  • 4.1 Review final system design and keying requirements and confirm with appropriate personnel in accordance with SOPs
  • 4.2 Prepare documentation, and process and store in accordance with client, legislative and SOPs
No information
No information
Replaces
State Code National Code Title Type
OAU03 MEM20007 Plan and prepare a masterkey system Unit of competency