18-649 Project 7
Design Process Cleanup and Midterm Acceptance Testing
Please submit all project-related correspondence to
- Fixed statement about leveling: You MUST be able to
pass the acceptance test with leveling enabled.
- There is a simulator flag to disable it that you may use
for debugging purposes only.
Throughout this semester your group has designed, implemented, and tested a
basic elevator system. Before you proceed with optimization, you will
make sure the entire design package is 1) organized well and 2) consistent with
your current implementation. Your design will also need to pass all
previous tests and the additional tests provided for this project. If you
have been following the process in the prior design stages, this project should
be pretty straightforward.
Note that this project is more heavily weighted than previous
What you need to do:
1) Make sure you have the latest version of the simulation framework from the
A note about
The control periods for controllers instantiated during acceptance tests are
defined in MessageDictionary.java. For this project, the following
control periods are required.
Note that these are the default periods in the simulator, so if you have not
changed them, you should be fine.
We believe these control periods are reasonable. If you wish to change
the control period used by any controller, you MUST obtain the approval of the
course staff. In order to convince us, you will need to make an argument
based the timing of the physical system. "Because it makes my
elevator work" is not a valid argument!
- HallButtonControl: 100ms
- CarButtonControl: 100ms
- LanternControl: 200ms
- CarPositionControl: 50ms
- Dispatcher: 50ms
- DoorControl: 10ms
- DriveControl: 10ms
If you obtain TA approval, you
must write up the
justification for the change and include it in the description of the relevant
control object(s) in the Elevator
Control package (elevatorcontrol/package.html) in your
portfolio. You should also record the name of the TA that approved the
change. If you either a) do not obtain TA approval or b) do not note the
changes and the justification for the changes in your portfolio, significant
points will be deducted.
2) Organize your design portfolio.
Make sure that your portfolio documents conform to the
structure and guidelines described in the projects and the
portfolio page. If you
have been using the portfolio template and following the project guidelines,
you should have very little work to do here.
3) Complete your integration tests,
including all the steps specified in project 5 (logs, reviews, traceability,
summary files, etc).
4) Peer review your integration tests.
You should peer review at least 4 of the newly created integration tests
for this project. Although you are only required to review 4, we highly
encourage you to do more to ensure testing coverage.
- If you have more than 20 sequence diagrams, you need only create tests for
20 of them. However you MUST test the original scenarios provided in the
portfolio template (1A, 1B, 1C, 2A, 2B, 3A, 4A, 5A, 5B, 6, 7A, 7B, 7C, 8A,
- If you have fewer than 20 sequence diagrams, you must test them all.
- You must pass all integration tests.
5) Ensure your design portfolio is complete
and consistent. If you have been keeping up with updates in the
previous project stages, most of this work will already be done. The following
is a partial list of the characteristics your portfolio should exhibit:
6) Use Runtime Monitoring to Study Performance
- Problems identified in previous assignments have been corrected.
- All documents are complete and up-to-date with latest time-triggered
implementation (i.e., code matches statecharts, requirements, sequence
diagrams, and all traceability is complete and up to date)
- All documents include group # and member names at the top of the
document. (This includes code, where this information should appear in
the header field)
- Individual documents have a uniform appearance (i.e., don't look like they
were written by 4 individual people and then pieced together)
- Code is commented sufficiently and reflects code-statechart
- Issue log is up-to-date and detailed enough to track changes to the
For this part of the project, you will use the runtime monitoring framework to
study the performance of your elevator. Later on, in Project 11, you will
use the runtime monitoring to verify that your final design has met the high
First, read the description of the runtime monitoring framework in the
Runtime Monitoring Overview.
Then use the SamplePerformanceMonitor.java as a starting place to create your
own runtime monitor. Add a new class to the simulator.elevatorcontrol
package called Proj7RuntimeMonitor. Be sure you use the right name
because the monitor may be graded by an automated script that relies on this
name. Make sure Proj7RuntimeMonitor extends
Your monitor shall record the following performance information:
Make sure you implement the summarize() method to report these results at the
end of the test.
- How many times the elevator became
overweight - Specifically, count the number of stops where the car
became overweight at least once. If the doors close completely and reopen
at the same floor, that counts as two overweight instances. Code to meet
this requirement is provided in SamplePerformanceMonitor.
- How many wasted openings - Count
the number of times when a door opens but there is no call at that floor.
Depending on your design, you may need to use button presses, light indicators,
or changes in car weight to determine whether or not an opening was wasted.
- How much time was spend dealing with door
reversals - count the time from a reversal until the doors fully close,
and accumulate this value over the whole test. Hint: check out the
StopWatch class in SamplePerformanceMonitor. Note: If you are only using NUDGE
for doors, you will not see any time spent dealing with door reversals. This is
ok, but you must implement this anyway as it will be useful in later
You must also complete a peer review of your runtime monitor and add it to
the peer review log
You are not required to improve your design based on these metrics, only to
measure the performance of your current design. However, it should get
you thinking about ways to improve your design and the performance of your
If your monitor does more than monitor the system
(e.g. outputs any framework or network messages, or affects the simulation
state in any way, you will receive significant deductions on the
7) Pass an acceptance test.
Read the Acceptance
Testing section of the Testing Requirements. Running an
acceptance test involves:
We have provided three acceptance tests:
- Run the acceptance test and observe the results of the test.
- Be sure to run your Proj7RuntimeMonitor during the test.
- Save the test input and output files in the acceptance_test/ folder of your
- Record the results of the test, including the monitoring results, in the
Acceptance Test Log.
- Add entries to the Issue Log
documenting any defects identified as a result of the test. Be sure to
include the issue log #'s in the Acceptance Test Log file as well.
In order to receive full credit for this assignment, you must run all three
tests with a random seed of 8675309 and document the test results. You
must pass proj7acceptance1.pass.
This constitutes "have a working elevator" for the purposes of the
midsemester project handin. You are not required to pass
proj7acceptance3.pass, but you can do
so for bonus points (see below). For any of the three tests, if your
elevator does not pass the test, you must document the problem in the
Acceptance Test Log and the Issue Log.
Note 1: You may notice passengers not
boarding/leaving your elevator. This is possibly because you haven't correctly
implemented the leveling speeds for the drive controller. To handle situations
such as cable slip when the elevator is overweight, you will need to level with
the doors open. See the requirements for the Passenger and the DriveControl
speeds for more information.
Note 2: If you do not pass
proj7acceptance1.pass by the time you
hand in Project 7, you MUST (eventually) pass this test in order get a grade
for this course. In that case, contact the course staff to arrange a
demonstration when you are ready.
Note 3: You are strongly discouraged in
this project to use exception handling. Starting in Project 8, you will be
forbidden to do so without course staff approval.
8) BONUS: pass
additional acceptance tests
You can earn bonus points by also passing proj7acceptance2.pass and
tests model the up-peak and down-peak conditions with a light-to-moderate
passenger load. You must fully document the test results and any
associated bugs (as described in Part 4 above) even if your elevator does not
pass these tests. Note that you will eventually be required to pass these
tests in Project 8.
The bonus is substantial (1% of your total course grade), but the requirements
for getting the bonus are also substantial! In order to be eligible
for bonus points, you must:
If you do not meet all these criteria, you will not get bonus points even if
your elevator passes the bonus acceptance tests. This is because we
don't want you to ignore other parts of the project in order to try and hack
together an elevator that passes the additional acceptance tests. We want
to give you an incentive to submit a complete design package. We also
want to reward teams that have put in a substantial effort on the project.
- Successfully pass (and document) all unit, integration, and acceptance
tests required by the project.
- Have a complete and consistent design portfolio (see the grading rubric for
- Turn the project in on time.
Handing In Results
Each team shall submit exactly one copy of the
Follow the handin instructions detailed in the Project FAQ
to submit your portfolio into the afs handin directory (
Be sure you follow the required format for the directory
structure of the portfolio and its location in the handin directories.
Be sure to follow ALL the portfolio
guidelines detailed in the Portfolio Layout page.
Any submission that contains files with modification dates after the
project deadline will be considered late and subject to a grade deduction
policy page for more information).
Grading (135 Points + 10 bonus points)
Here's the minimum requirement spread sheet.
Though there are no constraints on how you assign work for this project, you
must still fill out the minimum requirements sheet with your hours since
project 6. The project will be late until this sheet is handed in.
This assignment counts as one team grade. If you choose to divide the work,
remember that you will be graded on the whole assignment.
A detailed grading rubric is given here(PDF).
Grading will be as follows:
Each team member must satisfy the minimum stated per-member requirements. Team
members who omit any required per-member activity will receive a zero
- 15 points - for Proj7RuntimeMonitor
that records the stated performance requirements.
- 15 points - for a design portfolio
that meets the portfolio layout requirements
- 20 points - peer reviews for at
least 4 of the integration tests and the runtime monitor. Each team member must
complete at least one peer review.
- 35 points - for complete unit and
integration testing and running three acceptance tests, and passing
- 45 points - for a complete and
consistent portfolio. Note that the grading criteria are based on
sampling. If we check one part of your portfolio and find problems,
chances are that there are problems in other parts as well.
- 5 points - A list of which points
corresponding to which tasks were primarily completed by each team member
(every point must be assigned to a specific team member). Also for an
improvements log entry. If you encountered any minor bugs that we haven't
already addressed, please mention them so we can fix them. If you have no
suggestions, say so in your entry for this project.
- 10 points
- for passing 2 bonus acceptance tests
(points only awarded if the rest of project has been substantially completed)
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