DEFWDV039 — Support self-contained underwater breathing apparatus (SCUBA) diving operations from the surface

1 Use decompression tables to calculate safe diving profiles

• 1.1Select decompression tables to meet diving operation requirements according to organisational procedures and instructions of dive supervisor
• 1.2Use decompression tables to determine increments, times and rates
• 1.3Calculate decompression obligations using decompression tables
• 1.4Implement corrective actions necessary to compensate for deviation from the decompression schedule

2 Prepare and rig ‘lazy shot’

• 2.1Inspect and prepare lazy shot and cordage
• 2.2Set lazy shot and cordage at required depth for decompression stop in accordance with dive plan
• 2.3Adjust lazy shot and cordage requirements to meet planned decompression stops
• 2.4Recover and re-stow lazy shot and cordage

3 Implement decompression procedures

• 3.1Follow decompression procedures in accordance with the dive plan
• 3.2Relay commands from the supervisor to the diver, as required, to ascend to the next stop or the surface
• 3.3Monitor time at stop to ensure compliance with decompression requirements
• 3.4Use procedures for lazy-shot and fixed shot rope correctly during decompression

4 Attend to a SCUBA diver from the surface

• 4.1Assist diver in fitting and inspecting dive equipment prior to undertaking dive
• 4.2Assist diver’s entry into, and exit from, the water
• 4.3Ensure equipment is free from leaks prior to the diver leaving surface
• 4.4Manage diver’s safety line throughout the dive
• 4.5Send, interpret and respond to lifeline signals to communicate with diver in accordance with supervisor instructions
• 4.6Report diver’s condition, position and progress to supervisor as required
• 4.7Provide navigation assistance as required
• 4.8Assist diver in the removal, post-dive inspection and stowage of equipment in accordance with industry standards and organisational policies and procedures

What does an assessment tool for DEFWDV039 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for DEFWDV039 needs to address all 37 unit components: 4 elements with 20 performance criteria, 8 performance evidence requirements, 9 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for DEFWDV039?

Auditori pulls the current release of DEFWDV039 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for DEFWDV039 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing DEFWDV039 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of DEFWDV039, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.