# Site

## Pages

- [Page not found](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/404/): That page doesn't exist, or it has moved since you last looked
- [Assessment](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/assessments/): Every piece of graded work in the course, what it is worth, and when it is due.
- [The Measured Queue](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/assessments/the-measured-queue/): Observe one real queue for at least 90 minutes and report its arrival rate, service rate, utilisation and mean wait, with the method behind each figure.
- [The Queue Journal](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/assessments/the-queue-journal/): Eleven weekly entries of 100 to 250 words on queues you were in or watched, plus a closing note, submitted once as a single document.
- [The Redesign](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/assessments/the-redesign/): A 2000 word proposal for one change to the queue you measured, with the predicted effect worked out, plus an eight minute defence in week 12.
- [Whose Time It Was](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/assessments/whose-time-it-was/): An essay of 1200 to 1800 words arguing about how one queue distributes waiting, with evidence and the strongest case against you stated in full.
- [Ask for an extension](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/extensions/): How extensions work in this course, and the form that submits the request. Up to five days, before the deadline, reason not documented.
- [My arrival rate changes every ten minutes](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/arrival-rate-is-not-constant/): Little's Law wants one arrival rate. My queue has four, depending on what time I stand there. Which one goes in the formula?
- [Field sessions do not run over the break](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/break-week-reminder/): No field session in the three weeks from 30 March. The room is locked and nobody is in it.
- [Week 1, choose your queue by Wednesday](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/choose-your-queue-by-wednesday/): What makes a queue workable for this course, and the four ways a first choice usually fails.
- [It rained and my queue behaved completely differently](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/counting-in-the-rain/): Forty minutes of rain and the line outside the coffee cart collapsed. Do I throw the session out or is that a result?
- [What does defending the redesign actually involve](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/defence-week-12/): Week 12 says you defend the change in front of the room. How long, what do I bring, and what are people allowed to ask?
- [Field session 4 is a walk, dress for it](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/field-session-4-is-a-walk/): Week 4 visits four queues on foot. What to bring, what happens if it rains, and the seated alternative.
- [How wide should my service time bins be](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/histogram-bins/): Thirty second bins make my histogram look flat. Five second bins make it look like noise. Is there a rule or is this taste?
- [Is it actually fine to count people who have not agreed to it](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/is-it-ethical-to-count-people/): Nobody in my queue knows they are in my data. The consent procedure for week 8 made me wonder why the other eleven weeks do not have one.
- [Does the journal want prose or a table](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/journal-format-question/): The brief says record each visit. It does not say whether that is a paragraph, a table or both, and I have written it three ways.
- [Does a missed journal week really score better than a reconstructed one](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/journal-missed-week/): The brief says to write "week 6, missed" rather than make one up. Checking that is meant literally.
- [Little's Law says forty minutes and that is obviously wrong](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/littles-law-gives-me-forty-minutes/): A count of twelve and an arrival rate of one every three minutes gives a wait nobody in the line is actually experiencing.
- [My queue turned out to be four queues](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/my-queue-is-four-queues/): The pharmacy counter serves prescriptions, collections, consultations and retail from one line. Is that one queue or four?
- [My site closed down in week 8](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/my-site-closed/): The cafe I have been counting since week 1 has shut for a refit. Six weeks of data and nowhere to stand.
- [The clinic has a priority system and nobody explains it](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/priority-at-the-clinic/): People arrive after me and go in before me. There is a rule and it is not written anywhere a patient can read it.
- [How big is The Redesign allowed to be](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/redesign-scope/): Can I propose hiring another person, or does the change have to be something the site could do on Monday with no money?
- [Stopwatch or phone, and does it matter](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/stopwatch-or-phone/): The phone is easier to hold and the stopwatch does not buzz. Is one of them going to wreck my numbers?
- [The shop has asked me to stop standing there](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/the-shop-said-no/): Week 6 and the site I have measured since week 1 has withdrawn access. What happens to the assessment.
- [Two tills, one line, and my arithmetic broke](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/two-tills-one-line/): The shop opened a second till halfway through my hour. My wait dropped by more than half, which I did not expect.
- [My mean is fine and my Tuesdays are awful](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/variance-is-the-story/): Average wait four minutes. Tuesday wait fourteen. The average is true and it is hiding the entire problem.
- [Week 10, and taking the written version](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/week-10-content-warning/): What the alternative to the week 10 lecture is actually like, from somebody who took it.
- [Week 6, then the break, and what to do in it](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/week-6-deck-and-break/): The mid-semester break sits between week 6 and week 7. Your queue does not take a break and neither should your counts.
- [Where am I actually allowed to stand](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/where-am-i-allowed-to-stand/): The supermarket has a queue worth timing and a manager who keeps looking at me. What are the rules for standing there with a clipboard?
- [Does somebody on their phone count as waiting](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/forum/who-counts-as-waiting/): Half my queue is not looking at the queue. They are on their phones and they seem fine about it. Are they waiting the same amount as somebody staring at the counter?
- [Glossary](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/glossary/): Every term this course uses as though you already knew it, and the week you actually meet it.
- [Lectures](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/): Twelve weeks, twelve claims, and the four pieces of arithmetic that hold them together.
- [The line starts here](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-01/): First-come-first-served is not the natural state of a queue. It is a policy somebody chose.
- [Little's Law](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-02/): You can work out how long people are waiting without timing a single one of them.
- [Variability is the tax](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-03/): A counter running at ninety-five percent of capacity is not a well-run counter. It is one bad morning from collapse.
- [One line or many](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-04/): The banks changed to a single serpentine line and the supermarkets never did. Both were right.
- [Priority, and who pays for it](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-05/): Every queue jump is paid for by somebody standing further back who was never told.
- [Triage](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-06/): Emergency medicine solved the ethics of priority in public and wrote the answer down. It is worth reading.
- [The queues with no visible front](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-07/): A visible line is a courtesy. The queues that decide the most about a life publish nothing.
- [The felt wait](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-08/): An unexplained two minutes is longer than an explained five. That is not a failure of the customer.
- [Machines that wait](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-09/): Your laptop is running a dozen queues right now and its scheduler faces exactly the problem the passport office does.
- [When the queue is the hazard](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-10/): A crowd crush is a queueing failure, and the arithmetic that predicts it is the arithmetic from week 3.
- [Abolishing the queue](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-11/): Appointments, lotteries and auctions do not remove waiting. They change who does it and what it costs them.
- [What you can see now](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/lectures/week-12/): A last hour on what changes once you cannot stand in a line without reading it.
- [People](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/people/): Who teaches this course, which weeks they take, and who to ask first.
- [Amos Redfern](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/people/amos-redfern/): Lecturer. The arithmetic half of the course, from Little's Law to the scheduler inside your laptop.
- [Marta Ilves](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/people/marta-ilves/): Guest lecturer for week 7. Eleven years as a case officer, then an ombudsman investigator, on the queues nobody can see the front of.
- [Priya Raghunathan](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/people/priya-raghunathan/): Field session tutor and the week 8 lecturer. Twelve years in transport planning, most of them spent counting people who did not want to be counted.
- [Tessa Varga](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/people/tessa-varga/): Convenor. Ran patient flow in an emergency department for nine years before deciding the interesting part was the waiting room, not the wards.
- [Policies and support](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/policies/): Late work, extensions, fieldwork conduct, safety, and what to do when your queue disappears.
- [Choosing your queue](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/01-choosing-your-queue/): Two hours to commit to the queue you will still be measuring in week 12, and to find out why your first choice will not work.
- [The clipboard](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/02-the-clipboard/): Learning to record arrivals and services by hand, badly, and then learning what the errors were.
- [The long tail](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/03-the-long-tail/): Plotting your own service times and discovering that the average was hiding most of what matters.
- [Counting servers](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/04-counting-servers/): A walk around four queues in the same building to work out how many servers each one really has.
- [Watching the jump](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/05-watching-the-jump/): Two hours recording every instance of somebody being served out of order, and what happened next.
- [The triage table](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/06-the-triage-table/): A tabletop exercise where your group writes a triage scale, then runs a surge through it and watches it fail.
- [Filing for a number](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/07-filing-for-a-number/): Putting a measurement on a queue that publishes nothing, starting with a real request for its length.
- [The waiting room audit](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/08-the-waiting-room-audit/): Auditing one waiting space against the seven propositions, and separating the service from the anaesthetic.
- [Reading a scheduler trace](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/09-reading-a-scheduler-trace/): Finding Little's Law, the utilisation wall and starvation in a real trace from a machine with nothing to hide.
- [The post-mortem](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/10-the-post-mortem/): Working through a published inquiry into a queue that failed badly, and finding the week we would have caught it.
- [The redesign studio](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/11-the-redesign-studio/): You pitch your one change to three people whose job is to find the group it costs.
- [The defence](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/sessions/12-the-defence/): Eight minutes each, questions from the room, and in the best years the manager of the queue you have been measuring.
- [Timetable](https://comp4020-agentic-coding-studio.github.io/comp4020-ass2-PressJump/timetable/): The whole semester on one page. Twelve weeks, what is taught, what you go and do, and what falls due.