Notes for SDL Instructors

Overall structure of SDL:

• Fall semester: establish scope & epics, build prototypes, run four sprints. The goal will be to deliver an initial, trial version of the system for use by the product owner. The sprint that crosses Thanksgiving week should include 1 period in which students present their work focusing on system design; this evensout the sprint lengths.
• Spring semester: five more sprints, incorporating feedback from evaluation version. A final version of the system is delivered to the client by the end of the school year. The expectation is that the team will carefully document the system design (in enough detail that a following team can pick up the project) and that the final deliverable will include a comprehensive, automated test suite.

The expectation is that by the end of each term, all code meets standards, designs are documented in diagram form, and all work in progress has been merged into the main branch and that all other branches have been closed.

One thing that is not included is a formal user evaluation. Student teams in SDL do not have the resources for such tests. They may be able to run informal tests with small groups of students, but full evaluation with larger groups must be done by the client.

The bulk of the students take SWE 3710 in the fall and SWE 3720 in the spring. However, students start the sequence in either semester and can have gaps between the courses. As a result, SWE 3720 students may be taking the course at the same time as some SWE 3720 students. Generally students follow the schedule of the dominant group of students on a team. This means that all students will follow the 5-sprint schedule in the spring semester even if some students are enrolled in SWE 3710. The assumption is that students will change roles (as guided by the instructor). Students who follow the 5-sprint calendar in (their) SE 3710 will then bring the experience about finalizing a project to the start of the project in the following term.

In theory, it may be possible for a student to take SWE 3720 while studying abroad. Our experience is this does not work for students at this level. It is too difficult to monitor engagement when the student is in a very different time zone. The expectation is that such students will take advantage of opportunities in their host country and re-engage with SDL when they return.

Notes on Project Selection

• At a minimum, include the PO, a description of the system goals, key epics for the upcoming year, and the key technologies.
• Six projects is too many for one instructor, largely because it is difficult to meet six teams during lab time and because it is difficult to track the details of that many projects.
• Teams should typically have four people and must have at least three. When a team has more than five, allocate additional time (at least an extra 25%) to monitor the backlog and ensure that all five are always working on useful items. If a team has seven, split it into two teams with clearly demarcated boundaries.

General Instructions

• The primary responsibilities of each instructor is to keep the team engaged in the project, performing ceremonies as appropriate, and motivating the team to be responsive to the client. Instructors also validate the work to ensure high quality.
• Instructors organize the first meeting with clients. Teams will organize later meetings throughout the year. The expectation is that teams will meet with clients at least once a sprint and often twice a sprint, especially in the fall. Video conferencing can be used for meetings if it is more convenient to and preferred by the client.
• When clients come on campus, call campus security close to the date they will arrive and give them a license number.
• Generally, the product owner proxy (POP) role is assigned for one semester. The preference is to rotate the POP role at the semester break, but in some cases (perhaps for 4-person teams) it might be better to keep the same POP for the full year.
• All other team roles are rotated on a regular basis so that each of the other team members receives experience with each of the roles (with the possible exception of POP).
• The team, rather than the product owner (PO), is expected to write most PBIs. The notable exception is at the start of the project; it can be useful to allow the PO to write initial stories. The general expectation is that POs review and prioritize PBIs. As usual, assigning story points to each PBI is the responsibility of the team.
• Teams are sometimes tempted to assign 5 or 8 points to simple PBIs. This leads to sprints with 70 or 80-point targets. This is an antipattern: it seems reasonable, but the consequence is that a point corresponds closely to an hour of work, so the estimates essentially degrade to counting hours of effort.
• A key method for confirming contributions by each team member is to examining commit and time logs. It is important that both provide meaningful information to ensure instructors have visibility to what was accomplished. In particular, quality commit messages will help instructors distinguish between trivial changes and substantial commits that need to be reviewed.
• It is expected that spike PBIs in the second fall sprint will focus on the technologies involved in the project. They should generally not include elements of the project; that is, they should not relate to any project-specific PBIs that are the subject of the third fall sprint.
• Some instructors prefer to create a group for each SDL team, giving all students Maintainer access. Creating groups ensures each team can set up epics (since they are global to the group). The group should be in gitlab.com/msoe.edu/sdl/y20sdl (or other group, depending on the year). Alternatively, create a single repository for the team and have the team record epics in the Wiki or as an issue that is "completed" by creating new PBIs.
• Within each group, create a project with a readme. Students need Developer access. It is advisable to set the expiration date to July of next year so it is clear who is contributing to the project.
• I typically make sprint reports/reviews due at least a few days after the end of the sprint. Students should not do the review or retro during lab time once the sprint is finished; that time needs to be reserved for finalizing the sprint backlog and getting started on the next sprint.
• Starting with at least sprint 3, have the team schedule time during the sprint to groom the backlog, where grooming includes full acceptance criteria and pointing. Starting the sprint should consist of simply moving the top X PBIs to the sprint backlog.

SWE 3710

• Overall expectations for SWE 3710:
  • Review all PBIs, preferably prior to the start of each sprint. Students typically struggle to write effective acceptance criteria in the first term, so it is important to reinforce this through feedback.
  • Check time logs for specificity. It is easy for students to get into the habit of logging time in hour-long chunks with inadequate descriptions.
  • Check contributions in repositories. Ensure the committed material is commensurate with the claimed time.
  • Ensure each student completes their personal spike with sufficient evidence to support assessment.
  • Check that teams are recording meeting minutes, discussions with their client, and discussions around decisions that are made in the first term.
  Additional expectations are implied by the following discussions.
• First week:
  • Organize meetings with clients. I talk to the students for the first hour of the first day, so I arrange the meetings for the 2nd hour or the 2nd day. Send email with the client's make, model, and license number to PublicSafety-Staff (with a reason) so they can park on campus.
  • Ensure all teams are using the same project tracking tools. Any differences will soak instructor time in finding appropriate materials.
  • Ensure all teams are using the same repository tool, again for critical functionality. Clients are free to move the work to another repository when the project is finished. Clients should not be committing changes to the repository without your approval, so any access should be read-only. If clients do work, it can be hard to assign credit and we have had cases in which clients introduce errors or complexities that make it harder for the team to take ownership.
  • Ensure there is a single repository for each project. Multiple repositories simply mean instructors have more places to look for project and process evidence. This increases grading effort with little benefit. Separate repositories for spikes can be helpful if approved by the instructor.
• Technology assignments:
  • These are to be individual; students can help each other, but all code will be independent and not related to the project.
  • If projects include concurrency, prioritize building concurrent applications in the target language. This likely includes discussing the concurrency issues with teams, even if that material will also be covered in Operating Systems.
  • Have each student document the goal, technologies tried and used, how to build the system and test that it works, and lessons learned.
  • It is sometimes useful to swap the team-based spike and the individual spikes. You may also wish to move the individual spikes to the second sprint, especially when the requirements are relatively unclear and it is not obvious which spikes are needed early in the first sprint.
  • The bulk of the work will be done outside SDL time. This works for the first sprint in the fall because most other PBIs will be ones that the team needs to work on together during lab time.
  • Each student is to schedule demonstration time in the instructor's office. NO demos during SDL lab time, and do not demonstrate these to your product owner.
  • Graded on 30% functionality, 30% for getting the work done (on time, by the end of the sprint; may allow late penalties), 30% for documentation.
• 2nd sprint:
  • 25% of the grade is to be on the lessons learned around the spike solutions, and these lessons must be documented and included (verbatim) in the sprint report. Quality of this documentation is a major part of the sprint grade.
  • 10% of the grade is to be on PBIs for sprint 3:
    • Is the description sufficient to understand the problem area?
    • Do PBIs for stories use the standard form, "as a ___, I would like to ___ so that ___." ?
    • Do PBIs have acceptance criteria using the given/when/then format?
    • Is the PBI sufficiently constrained that teams cannot keep adding new criteria?
    Note we are not checking for automation at this point.
  • 10% of the grade is to be based on the quality of diagrams.
• Sprint 3
  • Ensure that people assigned to tasks are not those working on that task for the mockups.
  • Emphasize that a significant portion of their sprint 3 grade will be based on their contributions and pull requests. People without pull requests will not get As or Bs.
  • Emphasize that PBIs are not assignments:
    • They must submit pull requests when they have significant portions done, even if the full PBI is not ready for review.
    • POPs are absolutely expected to validate PBIs to move them to Done; only show PBIs to clients if the team believes they are done. The primary role of the product owner is to attend the review and set priorities for future work.
    • Have teams demonstrate all functionality to the instructor before demonstrating it to clients. Ask the team what can be improved about each PBI.
    • Last minute commit-storms will result in a 5% grade reduction.
  • The quality of the sprint report will be 30% of the sprint 3 grade. The report must make it clear what was accomplished and by whom, how many hours were worked by each student (accurately! students are also responsible for recognizing overlapping times and time entries with no description), that successes are noted by individual, and that process goals contain numbers indicating measurable improvements.
  • Hold a formal, 45-minute retrospective with each team outside the SDL hours. (Teams will often do their own retrospectives in future dates, but this one must be done with the instructor.)
  • Sprint 4 (or whatever sprint crosses Thanksgiving break): this sprint will have 4 weeks, but part of that is the break. Students are not expected to put in time during the break. Each team is to present their project and a high-level design to the class. Encourage other class members to suggest solutions to design issues and otherwise share information.
  • By sprint 4, sprint reports should be concrete enough that they are sufficient to understand the state of the team and project. Give the team specific directions for report improvement.
  • By sprint 4, students should be writing useful acceptance criteria. Instructors should still review PBIs, but it's often difficult to do this evaluation before the sprint starts. It is still useful to do it while the sprint is ongoing.
  • Push teams to establish effective CI toolchains by the end of the term. Check that all tests pass. Often the early tests will not be effective at finding lots of errors; working on this can be a goal for SWE 3720.
  • An initial version of the system must be deployed for use by the product owner by the end of the term. This will help the PO provide useful, concrete feedback on system operation.

SWE 3720

The model established in the third sprint in SWE 3710 applies to this term as well. Additional notes:

• Work with teams to establish effective process improvement goals. Teams will often start with "estimate better" - this is typically a weak process improvement goal because good estimates require the experience the students are getting by taking the course. Push towards other process improvement goals, working the teams to ensure they have measurable criteria.
• Overall, an instructor's focus typically moves to ensuring the team is meeting design and communication challenges rather than closely monitoring process. For example, there is less need to be closely involved in reviews and retrospectives.
• Push for multiple releases over the semester. There will be a final release at the end of the term, but intermediate releases provide important information.
• Ensure the CI system is effective at identifying errors and that the team achieves a high code coverage value. Encourage teams to develop a behavior-driven development (BDD) model; that is, tests written in a natural language that can be understood by non-developers.
• If possible, instructors should build the system for themselves and run it locally. Doing this frequently increases the likelihood that the final release will be stable. Relying on student builds means that key steps are likely to be undocumented. Doing additional exploratory testing is also critical to ensuring there are not major faults that would make the system unusable by clients.
• The last sprint must be focused on design documentation, ensuring there is a stable build, and fixing only the most critical issues. Strongly discourage new functionality; it will likely not work, and time spent on adding functionality will degrade important documentation. Inadequate documentation increases the chances of projects being rejected by clients and significant portions of the projects being rewritten by later teams.
• Ensure all branches are closed by the end of the year and that all code going forward is in the main branch. If a branch captures incomplete work that might be useful to future teams, have the team document that with a PBI and close the branch without merging. Typically, future groups will not find such code useful, so it might be good to warn teams that unfinished work is likely to never be used. The focus should be on polishing features rather than adding new features, even if those features are considered critical by the client.