Re: UU Courses and classes

[sergey@total-knowledge.com]

Committed revision 22 with uu.xmi.

Created new class Group that handles UU groups functionality.
To the interface "StudyObject" added setGroups() and addGroups()
operations that allows to set/get any UMO to a group.
Added classes CreationRules and SignUpRules that allows to add/remove
creation/signup rules from enums.
To the interface User added getSignedUpGroups().


> You can put your uu.xmi into your SVN repo now.
> Regarding your class diagram changes - let's try to
> design it in somewhat more flexible way. Specifically,
> access-granting control rules may change in future.
> Let's make it possible to change them without rewriting
> lot of code.
>
> sergey@total-knowledge.com wrote:
>> Updated uu.xmi attached.
>>
>> Created new class "Class".
>> To the interface "Course" added setClasses(), getClasses().
>> Added enums Class::creationRules and Class:signUpRules.
>> In interface "User" getSignedUpCourses() changed to
>> getSignedUpClasses().
>> To the interface "StudyObject" added getServerType().
>>
>>
>>
>>> Guys,
>>>
>>> Get ready for ultimate fun: spec change.
>>> I talked about courses, authors, teachers, students,
>>> payments, etc. with the boss today, and here are the results.
>>>
>>> 1. Student does not sign up to course. He signs up to class.
>>> 2. Any number of classes can be created for course.
>>> 3. Class admins define rules on who can sign up
>>> 4. Whoever created class is a teacher for that class.
>>> 5. Whoever created class is "class admin" by default
>>> 6. Class admins can add more teachers and more admins to it
>>> 7. Class admins can remove other class admins and teachers.
>>> 8. Authors define rules on who can create courses.
>>> 9. Each course has "default class" created for it, with author set
>>>     to class admin and teacher by default.
>>> 10. Following class creation rules are available:
>>>     - Fully open, accept donations: anyone can create class, if
>>> donation
>>> of minimum
>>>         is given to author, teacher has an option to show a stamp on
>>> his
>>> course. Not
>>>         giving a donation will show up on course as well.
>>>     - Fully open, don't care about money: anyone can create class, no
>>> donation absence
>>>          marker will be shown.
>>>     - Payment required, perpetual: Fixed payment is made, and class
>>> exists indefinitely
>>>     - Payment required, periodic: Flat rate payments for defined period
>>> of time.
>>>     - Payment required, percentage: Percentage of teacher's income from
>>> this class
>>> 11. Following class sign-up rules are available:
>>>     - Fully open, free: anyone can sign up, donation options same as
>>> above
>>>     - Fully open, payment required: anyone paying fixed sum can sign up
>>>     - Limited group, free: teacher signs up students himself
>>>     - Limited group, payed: teacher signs up students himself, students
>>> must pay
>>>           (Normally this wouldn't make much sense: teacher can get
>>> payment
>>>           through external means, but we can provide a way, just to
>>> make
>>> it easier)
>>>     - Moderated sign-up, free: anyone can put in a request to sign-up.
>>> Teachers
>>>            decide who is accepted.
>>>     - Moderated, payment requires: Same as above, but in order to put
>>> in
>>> a request,
>>>             Student has to pay fixed sum.
>>> 11. Concepts of open and closed server were revisited. In terms of
>>> payment
>>> they will be equivalent (i.e. same author-teacher and teacher-student
>>> relationship
>>> possibilities). Difference will be that closed server will not have any
>>> sort of
>>> cross-linking or copying possibilities. I.E. one can only create
>>> courses
>>> from their
>>> own objects.
>>>
>>> I think it sums things up. Now I need corresponding changes for db
>>> schema and
>>> for model diagrams.
>>> Oh, and any comments/suggestions on the above :)
>>>
>>> --
>>> Ilya A. Volynets-Evenbakh
>>> Total Knowledge. CTO
>>> http://www.total-knowledge.com
>>>
>
> --
> Ilya A. Volynets-Evenbakh
> Total Knowledge. CTO
> http://www.total-knowledge.com
>
>