Mission lesson
Did you watch it long enough?
Stage 1 of 7
Mission
Who you are, what you are finding out, and what success looks like.
Showing stage 1 of 7: Mission
Mission
A model can be perfectly correct and still let you reach a wrong conclusion, if you stop watching too early. Your team will run the same spacecraft twice, changing nothing but how long you look, and test whether a conclusion drawn from the first run survives the second.
Your evidence supported a conclusion. Does it still, once you look for longer?
- Your role
- Verification and validation engineer
- Objective
- Test whether a claim based on a short observation remains supportable after a longer run of the same model and seed.
- Success looks like
- Commit to a short-run claim, run the longer observation, revise the claim from evidence, and state what the longer software run still cannot establish.
Learning outcomes · Grades 11–12
What you should be able to do, and the evidence that shows it.
- 01By the end of this mission, the learner will be able to analyse how observation length limits what evidence can support, and demonstrate this by tracing one claim through both runs.
- 02By the end of this mission, the learner will be able to evaluate what would count as sufficient evidence for a stated claim about this spacecraft, and demonstrate this by naming the run length that claim would require.
- 03By the end of this mission, the learner will be able to formulate a bounded verification statement and state its limit, and demonstrate this by naming what the long run still does not establish.
Preparation
Before we start
A quick check of what you already know. There is no score.
The idea behind the mission
Two runs of the same model with the same seed. Nothing about the spacecraft changes. Only how much of its mission you have seen.
Enough evidence, not just correct evidence
Verification asks two separate questions: is the result trustworthy, and is there enough of it to support the claim being made. A short run can be perfectly reproducible and still far too short to justify what someone concludes from it.
Predict before you run
Run the short version, write down what you would conclude about the spacecraft power margin, then predict whether that conclusion will survive.
After the short run, what would you conclude about this spacecraft power margin - and will it survive a longer look?
At least 20 characters — say what you expect and why.
Readiness
This is a local preparation check. It is not Challenge qualification and creates no official attempt.
- Mission objective and success criterion reviewed: not done yet
- Preparation diagnostic answered: not done yet
- Mission theory reviewed: not done yet
- Prediction recorded: not done yet
The set-up you will run
These are the two set-ups you will compare. They are fixed on purpose: if only one thing differs between your runs, anything that changes was caused by it.
Baseline case
Short run (30 min)
Candidate case
Long run (2 h)
- Commit to a conclusion after the short run, before running the long one.
- Only the observation length changes. The model and the seed are identical.
- These results come from a model, not from a real mission.
Units stay attached to every result: angles in degrees (°), time in seconds (s), power in watts (W), energy in watt-hours (Wh), battery state in percent (%), and elevation in degrees (°) where available.
Finish every preparation item above first; then this can be confirmed.
Official qualification: false. This acknowledgement stays in this browser.
Operate
Readiness required
Complete every preparation requirement, then confirm readiness before operating the Twin.
Run the short version first and commit to a conclusion before running the long one.
Baseline
Short run (30 min)
Candidate
Long run (2 h)
Run the baseline first so you have something to compare against.
- Short run (30 min): not run in this session yet
- Long run (2 h): not run in this session yet
Evidence
Run a Digital Twin case first
The results fill in once the Twin has produced evidence. The decision, limits and knowledge check can be read now.
Read the evidence
Compare the two battery figures. Then ask what the short run could honestly have supported.
Run the Twin to produce evidence.
Complete
Readiness required
Finish the required run or comparison, select evidence, make a decision and answer the knowledge check. Then reflect here and finalize.
Completion records the work you did; it does not mean mastery, qualification, or an official grade.
Reflect
How did the longer run change the claim you were willing to make, and what would count as enough evidence next?
At least 20 characters. Editing this or any source work after completion invalidates the local record.
Your formative result
Revisit the mission evidence
Formative · not an official grade
No formative evidence has been recorded yet.
Formative band: revisit. Any formative band may complete the mission. Official grade: none.
Finish the required run or comparison, select evidence, make a decision, answer the formative assessment, and complete your reflection.
Recognition
Lane C provides a private local-practice record. Verified recognition remains a separate Platform workflow.
Complete the mission first
Finalize the mission to create a local-practice record on this device.
Finalize the mission to create a local-practice record on this device.
Home mission
Home mission: too early to tell
Think of something judged too early - a film after ten minutes, a game after one round. Write what the early evidence suggested, what it turned out to be, and what would have counted as enough.