Did it actually help?
The college replaces the slow switches and two old access points. Everyone says the video "feels better".
The head asks: "Can you prove it?" The IT manager opens two tables: the readings from before and the readings from after.
This is what continuous improvement looks like.
Key words
| Word | What it means |
|---|---|
| Continuous improvement | always looking for ways to make a system work better |
| Solution lifecycle | the stages a solution goes through, from first idea to being replaced |
| Outcome data | the measurements taken after a change, to show what happened |
| Packet | a small piece of data sent between devices |
| Average | the total of the readings divided by how many there are |
| Trend | the direction that readings are moving over time |
| Finding | something you learned from the data |
| Policy | a rule or plan that an organisation follows |
| Procedure | the steps to follow to do a job the right way |
| Baseline | measurements taken before a change, to compare with later |
The cells students fill in are left blank in this preview.
By the end of this lesson
Note
I can respond to a change using the solution lifecycle stages, assess the result, analyse the outcome data and record findings clearly.
Starter
Have a go
Starter
3 questionsYour answers are marked here and are not kept. A college account keeps every student’s marks.
Respond with the lifecycle stages
You already know the stages of the solution lifecycle. Use the right ones for a change.
Plan and design the fix. Test it in a sandbox. Release it in stages. Then monitor and evaluate. If old kit is replaced, decommission it safely.
The response to the video change
| Stage | What the college does |
|---|---|
| Plan and design | Choose faster switches and two new access points for room 4 and the hall |
| Test | Try the new kit in a sandbox with a test class |
| Pre-production | Get sign-off from the IT manager |
| Deployment | Fit one block at half-term, then the other, with a rollback plan |
| Monitor and evaluate | Take readings again for two weeks |
| Decommission | Wipe and recycle the old switches |
The cells students fill in are left blank in this preview.
Check
Have a go
Check
3 questionsYour answers are marked here and are not kept. A college account keeps every student’s marks.