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  1.  
  2. <h2>The structure of an institution interface</h2>
  3.  
  4. <a id="institution"></a>
  5. An institutional structure is a multi-level lattice of a group of virtual
  6. classes. Each virtual class in the lattice is called a <em>work zone</em>,
  7. or <em>zone</em>.
  8. <p>
  9. <a id="portal"></a>
  10. The structure of an institution is built below a unique zone called
  11. <em>portal</em>. This is the common entrance point, it serves also for
  12. global management for the institution. No real teaching work should take
  13. place in this zone.
  14. <p>
  15. <a id="level"></a>
  16. Zones immediately below the portal are <em>levels</em>. A level corresponds to
  17. a set of students sharing the same annual programs.
  18. <p>
  19. The role of levels is essentially to separate things that have no relation
  20. between them.
  21. Student logins are not
  22. accepted for levels, nor teaching works.
  23. <p>
  24. <a id="class"></a>
  25. <em>Classes</em> are immediately below each level. A class is a group of
  26. students sharing the same teaching time table.
  27. <p>
  28. Students should log in to classes. Each student may have one or more classes.
  29. <p>
  30. <a id="program"></a>
  31. Immediately below a level are also <em>programs</em>. Each program is a
  32. gathering point of teaching resources shared by one or several classes in
  33. the level.
  34. <p>
  35. Students cannot log in to programs. Teachers can log to programs (as
  36. supervisors) in order to prepare teaching materials.
  37. <p>
  38. <a id="course"></a>
  39. <em>Courses</em> are zones of lowerest level. Each course belongs to a
  40. program, as well as to a class. One can think that to every pair
  41. {program,class} may correspond a course.
  42. <p>
  43. Teaching resources of a program are shared by all its courses. A student in
  44. a class can navigate between the courses of the class. Daily student works
  45. are done in courses.
  46. <p>
  47. A course has a unique set of teaching resources, and a unique time table.
  48. <p>
  49. <a id="icourse"></a>
  50. A program can also have <em>Interclass courses</em>. Such a course only
  51. belongs to a program, and students from any class can register to an
  52. interclass course. This can be used for optional teaching programs.
  53. <p>
  54. <a id="test"></a>
  55. Each program can also have a special course, called <em>test zone</em>.
  56. Teachers can prepare experimental teaching resources in the text zone, then
  57. export them to the program when finished. Everything in the test zone is
  58. invisible to the students.
  59.  
  60.