Observable acceptance criteria
Define the input, starting state and expected output. Use conditions that can be checked, rather than descriptions such as working correctly or feeling responsive.
Engineering decisions
Validation
Functional testing against defined requirements.
Specify test conditions and expected outputs, then link observations to the hardware, firmware revision and setup used.
Test planning and verification
- Acceptance criteria
- Recorded observations
- Issue tracking
Match the test to the engineering question
Calibration, reset and connection loss can exercise different paths from normal operation. A test plan should identify those conditions in advance. Checks may cover a firmware function, electrical interface or complete interaction, depending on the project stage and available hardware. Conclusions must reflect that coverage.
Measurement points
Select checkpoints at decoded inputs, transmitted data, output signals or physical responses. A screen update may not establish what the connected hardware did.
Limits of the evidence
Record tested and untested conditions. Source review can establish implemented logic; hardware results require observations from the relevant setup. Neither automatically establishes endurance or compliance.
Engineering process
Project
process.
- 01
Define the test setup
Identify the revision, configuration, equipment and starting state. Agree the operating sequence, expected result and relevant limits or interruptions.
- 02
Select observation points
Decide where to capture results and what context to retain. Each observation should be traceable to the input that produced it.
- 03
Perform the agreed tests
Exercise the specified conditions using available equipment and access. Record results and deviations without extending them to untested situations.
- 04
Assess results and open issues
Compare observations with acceptance criteria. Mark issues as resolved, open or requiring further evidence, and identify any additional tests needed.
Depending on the agreed scope
Project
deliverables.
- A test plan and acceptance criteria
- Revision and setup records
- Observations linked to test checkpoints
- An issue list and recommended further tests
Functional checks are limited to the available setup and equipment. Certification, endurance and quantified performance require additional test plans and evidence.
Project experience
Related
projects.
Firmware diagnosis + calibration
N64 joystick calibration
N64 logic-analyser review was related to applied stick movement, with reset persistence tracked as a separate follow-up.
Project detailsConceptual workflow
The calibration workflow
- Read the referencesUse the centre and eight directional positions.
- Map the stick travelRelate movement to the expected output coordinates.
- Review the outputCompare captured signals with applied movements.
- Check calibration retentionTest console reset and power cycling separately.
Connected-device integration
Remote claw-machine control
Physical claw-machine checks cover press, hold, release and interrupted sessions. Camera integration is still being refined.
Project detailsTalk engineering
Which requirement needs verification, and under what operating conditions?
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