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Enterprise Integration Through the Course Management Service

Josh Holtzman, UC Berkeley Duffy Gillman, U. of Arizona. Enterprise Integration Through the Course Management Service. Agenda. CM Overview Design & Architecture Course Management API & Impl(s) Fitting CM into Sakai Where we are Where we’re going. CM Project Goals.

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Enterprise Integration Through the Course Management Service

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  1. Josh Holtzman, UC Berkeley Duffy Gillman, U. of Arizona Enterprise Integration Through the Course Management Service

  2. Agenda • CM Overview • Design & Architecture • Course Management API & Impl(s) • Fitting CM into Sakai • Where we are • Where we’re going

  3. CM Project Goals • Bring enrollment and course data into Sakai • Flexible enough to support many different course structures • Concrete enough to build tools and services upon • Solve course-site mismatch issue • Courses are not sites • Sites are not courses • More later… • Deliver new site admin tools

  4. Designing Course Management • Previous Work • OSID • 1.5 – 2.0 Design • Enterprise Integration DG • User-Centered Design Research • See: “User-Centered Design Process for the Course Management Project”, Marc Brierly and Daphne Ogle, Weds. 3:00-4:30pm (Grand A) • Lots of haggling over code

  5. Course Management Working Group • Initiated in January • Coordinating UI design and SW design teams • Agile(-ish) Development Methodology • Iterative • Incremental • Use-Case Driven • Frequent Contact • Test Driven

  6. Course Management Working Group (continued) Working Members

  7. Course Management Working Group (continued) ReviewTeam

  8. Course Management Working Group (continued) Resources: • Collab site: WG Course Management • Email list • Community welcome • Confluence Space: http://bugs.sakaiproject.org/confluence/display/CM/Home • Our Processes • Design Documents • Meeting Archives • Community has read and comment • Weekly Phone Meetings • Space limited • Contact collab list to request involvement • Agenda/minutes posted to Confluence Community welcome, input encouraged

  9. Agenda • CM Overview • Design & Architecture • Course Management API & Impl(s) • Fitting CM into Sakai • Where we are • Where we’re going

  10. Course Data • Three problems to solve • Definitions vary widely among institutions • Structures vary widely within institutions! • Business rules vary widely

  11. Problem #1: Definitions vary widely among institutions Semester = Quarter = Term = Session Section = Class = Course = Course Offering Our Solution: Use vague terms

  12. Problem #2: Structures vary widely within institutions Our Solution: (Hopefully) Flexible API

  13. Problem #3: Business rules vary widely Our Solution: Punt

  14. Sakai <= 2.2 Integration • Group Provider • Maps external group IDs to sites and groups • Custom string globbing enables mapping multiple external groups to a Sakai site/group • Legacy CourseManagementProvider • Provides external group names and IDs for use in the Site Info tool

  15. Sakai <= 2.2 Integration (continued) • Course • Id, Title, Subject, Cross-listed, Members, Term • CourseManagementService • getInstructorCourses() – from Provider • getTerms() – from sakai.properties • GroupProvider • Access to external groups (like courses) • CourseManagementProvider • Some duplication of GroupProvider

  16. Sakai <= 2.2 Integration (continued)

  17. Course Management WG Solution • Effort in preliminary stages • An attempt to code ‘what we know so far’ • Engagement of community is critical • User-centered research • Integrator experimentation with APIs • Current work best viewed as a first draft to gather feedback

  18. CM-based Integration • Course Management API • Institutional structure • Institutional roles, memberships, and status • CM-Mapping • Explicit mapping between Sakai sites/groups and CM entities • Allows for a CM-Mapping based GroupProvider implementation • Course-Site-Admin • Manipulates CM/Site/Group mappings • Site and Group creation

  19. CM-based Integration (continued)

  20. Agenda • CM Overview • Design & Architecture • Course Management API & Impl(s) • Fitting CM into Sakai • Where we are • Where we’re going

  21. Course Management API • Seeks a common abstraction for course data across institutions • Essential data: Enrollment in institutionally recognized units • Design Abstraction • Avoiding model lock-in before enough community input is gathered • Intentionally anemic model

  22. Course Management API (continued) • Parts • Two service interfaces • Read-only • Writable • Business objects • Anemic model by design • Factoring “for the wire” • Cross-service dependencies • Simplification of persistence layer caching/session management

  23. Course Management Service Business Objects

  24. AcademicSession Read-only properties: Eid Title Description StartDate EndDate Provides a time-based context for CourseOfferings within a CanonicalCourse. This will generally reflect semesters or terms (e.g. Fall and Spring), but may be used to represent any time-based ordering of CourseOfferings Used for time-based ordering and determining which course data is current

  25. CanonicalCourse Read-only properties: Eid Title Description Reflects a curriculum or academic program that is offered repeatedly.

  26. CourseOffering Read-only properties: Eid Title Description AcademicSession StartDate EndDate Represents an instance of a CanonicalCourse offered during an AcademicSession. Enables CourseOfferings to have unique schedule.* *Roadmap plans to abstract dates into Schedule object where AcademicSession and CourseOffering would each have a Schedule.

  27. CourseSet Read-only properties: Eid Title Description Category Parent Model a related group of CanonicalCourse or CourseOffering objects. Used in API to group child course objects. [hierarchy] Institution-specific metadata for filtering/searching

  28. Enrollment Represents the enrollment of a single student in a single CourseOffering or Section. Read-only properties: UserId EnrollmentStatus Credits GradingScheme

  29. Membership Relates a user to a particular role within a course data unit. e.g . Department Admin (CourseSet), T.A. (CourseOffering), lecturer (CourseOffering), Default Instructor (CanonicalCourse) Read-only properties: UserId Role

  30. EnrollmentSet Read-only properties: Eid Title Description Category DefaultEnrollmentCredits OfficialInstructors Contains Enrollments for a particular Section or CourseOffering and metadata about enrollment in general. Separated from Section as some institutions have Sections that do not carry credit themselves. [compare use cases? Look into marc’s use cases] Institution-specific metadata (e.g. lab, lecture, …) Some registrars provide this data in aggregate; this applies to all contained enrollments.

  31. Section Read-only properties: Eid Title Description Category Parent EnrollmentSet Represents a cohort or group within a CourseOffering. There may be multiple Sections related to a CourseOffering. Sections may also contain other Sections as subsections.

  32. Service Management Interfaces • Contain semantic ‘glue’ of the APIs • Two interfaces • CourseManagementService (read-only) • CourseManagementAdministration (writeable)

  33. Set getChildCourseSets(StringparentEid); Set getCourseSets(); Set getCourseSetMemberships(Stringeid); CanonicalCourse getCanonicalCourse(String eid); Set getEquivalentCanonicalCourses(String canonicalCourseEid); Set getCanonicalCourses(String courseSetEid; List getAcademicSessions(); ListgetCurrentAcademicSessions(); AcademicSession getAcademicSession(String eid); CourseOffering getCourseOffering(String eid); SetgetEquivalentCourseOfferings(StringcourseOfferingEid); Set getCourseOfferingMemberships(String courseOfferingEid); SetgetCourseOfferings(String courseSetEid); SetfindCourseOfferings(String courseSetEid, String academicSessionEid); CourseManagementService

  34. Set findCurrentlyEnrolledEnrollmentSets(String userId); Set findCurrentlyInstructingEnrollmentSets (String userId); Set findInstructingSections(String userId); Set findInstructingSections(String userId, String academicSessionEid); Set findCurrentSectionsWithMember(String userId); CourseManagementService (continued)

  35. List findCourseSets(String category); boolean isEmpty(String courseSetEid); Section getSection(String eid); Set getSections(String courseOfferingEid); Set getChildSections(String parentSectionEid); Set getSectionMemberships(String sectionEid); String getSectionRole(String sectionEid, String userId); EnrollmentSet getEnrollmentSet(String eid); Set getEnrollmentSets(String courseOfferingEid); Set getEnrollments(String enrollmentSetEid); Set getInstructorsOfRecordIds(String enrollmentSetEid); boolean isEnrolled(String userId, Set enrollmentSetEids); boolean isEnrolled(String userId, String eid); Enrollment findEnrollment(String userId, String eid); CourseManagementService (continued)

  36. boolean removeCourseOfferingFromCourseSet(String csEid, String coEid); void createEnrollmentSet(String eid, String title, String description, String category, …); void updateEnrollmentSet(EnrollmentSet enrollmentSet); void addOrUpdateEnrollment(String userId, String enrollmentSetEid, String enrollmentStatus, String credits, String gradingScheme); boolean removeEnrollment(String userId, String enrollmentSetEid); public void createSection(String eid, String title, String description, String category, String parentSectionEid, String …); public void updateSection(Section section); void addOrUpdateCourseSetMembership(String userId, String role, String courseSetEid); boolean removeCourseSetMembership(String userId, String courseSetEid); void addOrUpdateCourseOfferingMembership (String userId, String role, String courseOfferingEid); CourseManagementAdministration

  37. public boolean removeCourseOfferingMembership(String userId, String courseOfferingEid); public void addOrUpdateSectionMembership(String userId, String role, String sectionEid); public boolean removeSectionMembership(String userId, String sectionEid); void createAcademicSession(String eid, String title, String description, Date startDate, Date endDate); void updateAcademicSession(AcademicSession academicSession); void createCourseSet(String eid, String title, String description, String category, String parentCourseSetEid); void updateCourseSet(CourseSet courseSet); void createCanonicalCourse(String eid, String title, String description); void updateCanonicalCourse(CanonicalCourse canonicalCourse); void addCanonicalCourseToCourseSet(String courseSetEid, String canonicalCourseEid); boolean removeCanonicalCourseFromCourseSet(String courseSetEid, String canonicalCourseEid); CourseManagementAdministration (continued)

  38. void setEquivalentCanonicalCourses(Set canonicalCourses); boolean removeEquivalency(CanonicalCourse canonicalCourse); void createCourseOffering(String eid, String title, String description, String academicSessionEid, String canonicalCourseEid, Date startDate, Date endDate); void updateCourseOffering(CourseOffering courseOffering); void setEquivalentCourseOfferings(Set courseOfferings); boolean removeEquivalency(CourseOffering courseOffering); void addCourseOfferingToCourseSet(String courseSetEid, String courseOfferingEid); CourseManagementAdministration (continued)

  39. Default Implementation • Stand-alone • Hibernate • Population • Using CourseManagementAdministration • Batch Import

  40. Agenda • CM Overview • Design & Architecture • Course Management API & Impl(s) • Fitting CM into Sakai • Where we are • Where we’re going

  41. Service Level: CM-Mapping

  42. Service Level: CM-Mapping (continued) • Maps CM Entities to Sakai context(s) • Multiple sections can be mapped to multiple sakai sites/groups • public Set getMappedSectionEids(String sakaiRef) • public Set getSakaiReferences(String sectionEid) • Current API is simple… adding anything other than sections makes it very complex!

  43. Tool Level: Course-Site-Admin • Alternative for Site Info/Site Setup • Intended to match use cases uncovered in User-Centered research • First release pending

  44. Use Case: Simple Course

  45. Use Case: Large Lecture (multiple lectures and sections)

  46. Use Cases: Currently Identified • Simple • Large Lecture • One instructor, multiple lectures and sections • Multiple instructors, lectures and sections • One instructor, multiple section types • Cross-listed (multiple types) • Language Course • Shared site • Independent site • Professional School Course • No-Term Course See User-Centered Design Presentation: 3:00pm (Grand D)

  47. Tool Level: Course-Site-Admin (continued)

  48. Tool Level: Course-Site-Admin (continued)

  49. Tool Level: Course-Site-Admin (continued)

  50. Course-Site-Admin (Continued)

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