CSC309 Lecture 06

Software Engineering II
Code Review I
(202301)

Transcript

1. jgs CSC 309 Software Engineering II Lecture 06: Final Project Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.com Building 14 -227 Office Hours: By appointment
2. jgs Your Project
3. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 4 Timeline Week 02 We are Here Sprint Review I Week 04 Sprint Review II Week 06 Sprint Review III Week 08 Final Presentation Week 10
4. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 5 • Demo (run and showcase new features) Github: • Source code and individual commit activities • Unit Test Cases (when needed) Taiga: • Backlogs (Product and Sprint) • Every Backlog Item has an estimation and priority approved and known by ALL team members. • Task board (per Sprint) – who did what. • Burndown chart Astah: • Reliable UML class diagram + software architecture RSM (and calculate A, I, D): • Metrics (Both Code and Structural) Core Artifacts | More are to be added later
5. jgs Customer
6. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 7 Disclaimer This is your Customer speaking…
7. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 8 Disclaimer Are you going to give us a Checklist? Or some written specifications? No, not exactly.
8. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 9 Disclaimer The professor did not explain what he want in the project It is very difficult to complete the project without proper specifications. 🙁
9. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 10 Disclaimer The Software Development Process starts with the Elicitation of Requirements. Ask your customer for clarifications. Document features. Validate priorities, etc.
10. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 11 An Intelligent Tutoring system to coach students in learning Programming Specifically, Learning (Flowchart Diagram ßà Coding à Metrics) Goal
11. jgs Core Ideas
12. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 13 §A coach for seatwork/homework §Responsible for planning, organizing, and delivering an appropriate range of activities (problems to be solved) for students while helping them appropriately. What is an Intelligent Tutoring System?
13. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 14 §It is not the instructor §Do not deliver lectures (or videos). §Do not replace taking a class. §It is not a tool for multiple-choice quizzes. §It is not an eBook What is NOT an Intelligent Tutoring System?
14. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 15 45° x° y° 30° 40° y° What is the value of x? x = 25 Answer Answer-Based Tutoring
15. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 16 45° x° y° 30° 40° y° What is the value of x? x = Step-Based Tutoring 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 Step Step Step Step Step Step Step Answer
16. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 17 45° x° y° 30° 40° y° What is the value of x? x = Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 y = 250 40+30+y=180 A comment on one of the student’s steps Oops! Check your arithmetic. OK
17. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 18 45° x° y° 30° 40° y° What is the value of x? x = Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 y = 250 40+30+y=180 Or a hint sequence Oops! Check your arithmetic. OK
18. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 19 45° x° y° 30° 40° y° What is the value of x? x = Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 y = 250 40+30+y=180 Hints become more specific You seem to have made a sign error. OK
19. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 20 45° x° y° 30° 40° y° What is the value of x? x = Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 y = 250 40+30+y=180 Hints segue from commenting on the student’s step to suggesting a better step. Try taking a smaller step. OK
20. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 21 45° x° y° 30° 40° y° What is the value of x? x = Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 y = 250 40+30+y=180 Hints become more and more specific Try doing just one arithmetic operation per step. OK
21. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 22 45° x° y° 30° 40° y° What is the value of x? x = Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 y = 250 40+30+y=180 A bottom-out hint is the last hint, which tells the student what to enter. Enter 70+y=180 and keep going from there. OK
22. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 23 45° x° y° 30° 40° y° What is the value of x? x = Ask For Help 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 x=25 help 40+30+y=180 Try doing just one arithmetic operation per step. OK A step-help request is another way to start up a hint sequence.
23. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 24 45° x° y° 30° 40° y° What is the value of x? x = Delayed Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 y = 250 x+45+y=180 x+45+250=180 x=180-250 x = 70 40+30+y=180 Delayed (as opposed to immediate) feedback occurs when the solution is submitted.
24. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 25 45° x° y° 30° 40° y° What is the value of x? x = Delayed Feedback 40+30+y=180 70+y=180 y=110 x+45+y=180 x+45+110=180 x=180-155 y = 250 x+45+y=180 x+45+250=180 x=180-250 x = 70 40+30+y=180 Delayed (as opposed to immediate) feedback occurs when the solution is submitted. Oops! Check your arithmetic. Can an angle measure be negative? OK OK
25. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 26 §Next-step help §Hint sequence §Bottom-out hint §Immediate Feedback §Delayed Feedback Concepts to Remember
26. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 27 § Forms with boxes to be filled § Dialogue § Simulation § Drawing Diagrams User Interface
27. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 28 § Equations § Typed natural language § Actions in a simulation § Connecting Boxes § Adding Nodes § Writing Code § Etc. Students Steps
28. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 29 • Any correct path vs. shortest path to answer • Which steps can be skipped? • Recognize the student’s plan and suggest its next step. • Etc. Suggesting Good Steps
29. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 30 • Give a hint before the student attempts a step. • Immediate vs. delayed feedback? • Feedback on request? • How long is a hint sequence? • When to bottom out? • Etc. Feedback and Hints
30. jgs Examples
31. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 32 Andes – An ITS for Physics 1. Read a physics problem. 3. Type in equations 2. Draw vectors 4. Type in the answer
32. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 33 Andes – An ITS for Physics What should I do next? Green means correct Red means incorrect Dialogue & hints What is wrong?
33. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 34 SQL·Tutor - An ITS for SQL Problem Step Step Step The database that the problem refers to Submit! Feedback
34. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 35 Cognitive Algebra - An ITS for Algebra Problem Step: Fill in a cell Step: Define an axis Step: Label a column Step: Plot a point Step: Divide both sides Step: Enter an equation
35. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 36 AutoTutor - An ITS for Newtonian Physics The Problem Each tutor turn + student turn in the dialogue is a step. Student input is the 2nd half of the step.
36. jgs Intelligent Problem Selection
37. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 38 1. The Tutor or the Student selects the next problem. 2. The student does the task and submits an answer. • Do step; get feedback or hints; repeat 3. Repeat Task Loop
38. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 39 Adapt to the student’s needs Assistance provided Assistance needed Low High Large learning gains Struggling Bored, & irritated
39. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 40 § Keeping the student in the zone of proximal development § Mastery learning: Keep giving similar tasks until the student masters them § Choosing a task that suits the learner’s style/attributes § Etc. Adapt to the student’s needs
40. jgs Assessment
41. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 42 Assessment of students: • What does the student know? • How motivated/interested is the student? Evaluation of your system • Did it produce learning gains in most students? • Did it produce motivation gains in most students? • What is the time cost? • Other costs? Assessment vs. Evaluation
42. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 43 § Number of correct answers vs. Question difficulty level f (competence(student), difficulty(item)) § A sequence of numbers per knowledge component represents its mastery f(mastery(KC1), mastery(KC2), mastery(KC3), …) Where KCn are the ones applied in a correct solution Collect Data about the student.
43. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 44 Test item: Solve 3+2x=10 for x • KC5: Subtract from both sides & simplify 3+2x=10 à 2x=7 • KC8: Divide both sides & simplify 2x=7 à x=3.5 Single factor model • If the answer is correct, increment competence. Else, decrement. Knowledge component model • If the answer is correct, increment mastery of KC5 & KC8 • If the answer is incorrect, decrement mastery of KC5 & KC8 • The weakest one is most likely to be the failure, so decrement it more Example
44. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 45 Skill-o-meter - Knowledge component model
45. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 46 § Assessment of motivation or interest? § Assessment of learning styles? § Disabilities? § Diagnosis of misconceptions? § Bugs in the system? More Assessment Data
46. jgs Software architecture
47. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 48 Who will be the author of the problems (tasks)? Author creates new tasks • Author generates all solutions? • System generates all solutions? Who can be an author? • Instructors? • Artificial Intelligence? Authoring
48. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 49 § Platform independence § Integration of diverse clients (Web, Java Desktop) § Cheating, § Privacy § Software bugs § Content & pedagogy bugs Client – Server Architecture
49. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 50 Questions
50. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 51 Office Hours Tuesday and Thursday 3 - 5 pm But an appointment required Sent me an email – javiergs@calpoly.edu
51. jgs
52. jgs CSC 309 Software Engineering II Lab 06: Draft a Proposal Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.com Building 14 -227 Office Hours: By appointment
53. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 54 Think about this What your final project will be? Who will be in your team?
54. jgs Javier Gonzalez-Sanchez | CSC 309 | Winter 2023 | 55 Let’s Work
55. jgs CSC 309 Software Engineering II Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Winter 2023 Copyright. These slides can only be used as study material for the class CSC308 at Cal Poly. They cannot be distributed or used for another purpose.