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DEV-402 Development

AI-Augmented Testing & Quality Engineering

Use models across the testing lifecycle while staying honest about what they verify. Learners generate tests from requirements, code and specs, then prove with mutation testing whether that coverage is real or nominal, evaluate self-healing locators and visual checks against their false-negative risk, and use models as oracles only where the oracle is more reliable than the code. The capstone is taking ownership of a large generated suite and making it maintainable.

B4Professional
6modules
42skill atoms
1role journey
Curriculum

What this course covers.

6 modules, 42 named skill atoms. Expand any module to see them.

1Generating Tests That Matter7 skill atoms
from requirements and acceptance criteriafrom code and pull request diffsfrom OpenAPI and JSON schemasequivalence class and boundary promptingnegative and error-path coveragededuping near-identical generated casesrejecting tests that assert the implementation
2Coverage: Real vs Nominal7 skill atoms
line and branch coverage limitsmutation testing with Stryker and PITassertion-free test detectionauditing coverage claimed by generated testsrisk-weighted coverage viewcoverage gaming patternswhat coverage can never tell you
3Self-Healing Locators & Their Risks7 skill atoms
healing heuristics explainedsilent pass over a genuinely broken UIhealing logs and human review queueconfidence thresholds and fallbacksdrift accumulating across releasestest-id contracts as the better fixwhen to switch healing off
4Visual & Anomaly-Based Checks7 skill atoms
visual regression with Applitools and Percybaseline management and approval fatiguedynamic content maskinganti-aliasing and font rendering noiseanomaly detection over logs and metricsfalse positive rate budgetingwhen a pixel diff is not a defect
5Models as Test Oracles7 skill atoms
LLM as judge for output correctnessrubric and criteria designnon-determinism and sampling controlsoracle drift across model versionscases where the oracle is wronger than the codecost and latency per assertionhuman spot-check sampling rate
6Maintaining a Large Generated Suite7 skill atoms
ownership of tests nobody wroteduplicate and dead test pruningflake quarantine at scaleruntime and CI cost budgetsregenerate vs repair decisionsuite health metrics and trendsmerge policy for AI-authored tests
Where it fits

DEV-402 in a role journey.

This course appears in 1 of our 45 role journeys. Here is what a learner takes immediately before and after it in each.

QA / Test Engineer (AI-era)

Professional stage
DEV-304DEV-402AI-402

Roles this course serves

The capability ladder

This course is authored to band B4.

Every course we run is written to one rung of the CASI ladder, so a plan can be assembled to take a team from where they are to where they need to be.

What do B1–B6 mean?The CASI Capability Ladder — click to expand

Every course targets a band on the CASI Capability Ladder — our six-band proficiency scale, anchored to open standards (O*NET, ESCO, NICE, NIST AI RMF, Bloom's). A band tells you how deep a course goes, and what evidence proves it.

What the learner can doTypical evidence
B1
AwareUnderstands concepts and vocabulary; uses tools with guidance
Knowledge checks
B2
FoundationPerforms standard tasks correctly in familiar contexts
Guided labs, autograded exercises
B3
PractitionerDelivers complete pieces of work independently
Scenario labs, proctored hands-on exams
B4
ProfessionalHandles production-grade complexity, trade-offs and failure modes
Break-fix drills, design defenses
B5
AdvancedEngineers systems end-to-end under constraints; leads others
Rubric-scored capstones, vivas
B6
ExpertSets direction; recognised authority across teams
Portfolio + panel evaluation

A note on B6. Courses in this catalog target B1–B5. B6 is not taught — it is recognised, through a portfolio and a panel, once someone is setting direction for others. Every journey here is built to land a learner at B5.

Next step

Run DEV-402 for your team.

This course runs at several lengths depending on how deep you need to go and how much of it your people already have. Tell us who is being trained and we will scope it.

Add it to a training plan Talk to our team Check your team’s level free