Re: Signinig up, versions, passing UMOs [was: Passing UMOs]

["Alexey Parshin" <alexeyp@gmail.com>]

This approach means, that if several courses include each different versions of the same UMO, then to pass these courses one should study all the versions of the UMOs mentioned, and that is simply not fair. This requires enormous waste of time for no particular reason, especially if differences between versions are minor. It would make more sense if the UMO is considered as passed regardless of version. If the version changes are serious - then we should create another UMO.

2007/1/6, Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com>:

It's not a downside.

sergey@total-knowledge.com wrote:
> There is one downside I see at this point.
> UU is going to have bunch of UMOs in the Repository that do not belong to
> any course. Imagine a situation when student finds a topic, a test or a
> problem in Repository, but will not be able to study it because he cannot
> sign up for it directly.
>
>
>> Little clarification:
>> Student can only _directly_ sign up for a course. All other UMOs are
>> signed up for indirectly.
>> Which just made me realize how things should be:
>> 1. Student can sign up to different versions of a course (provided he
>> has rights for that - more on this later)
>> 2. At the time student signs up for a course, he automatically signs
>> up for all all objects of that course, to versions that are specified in
>> the course at that time. IOW, a snapshot of a course is taken.
>> 3. While student is studying, he will not see _any_ changes to the
>> course. IOW, retrieving version of an object to study will be based
>> on information in sign-up tables.
>> 4. If there is an UMO of exact same version that student already
>> studied, he will not be able to "study" it again - his results from
>> previous
>> passage of this UMO will carry over. Otherwise he will have to pass it
>> again.
>>
>> Now, what we need is to adjust database schema to allow all of this
>> (I think some info on signing-up is missing right now, but I'll let
>> Alexey look into it himself).
>>
>> sergey@total-knowledge.com wrote:
>>
>>>> Alexey Parshin wrote:
>>>>
>>>>
>>>>> If an author is really interested to see the difference - then he can
>>>>> simply see the difference between old rating (before new version) and
>>>>> after. For instance, the rating was 4.5 and became 4.7 with the new
>>>>> version..
>>>>>
>>>>>
>>>> True.
>>>>
>>>>
>>>>> After all, people who passed that UMO can't vote for another version
>>>>> because it requires 'em to pass that version again. BTW, this also
>>>>> means that students can only pass the UMO once regardless of version..
>>>>>
>>>>>
>>>> Did you notice circular dependency in these two sentences?
>>>> I am not sure whether we want to allow same student to pass different
>>>> versions of same UMO or not.
>>>>
>>>>
>>> Imho if Student wants to study new version of UMO, he will have to
>>> sign-up
>>> for it again. And I think he should be able to submit a vote on new
>>> version too.
>>>
>>>
>>>
>>>> --
>>>> Ilya A. Volynets-Evenbakh
>>>> Total Knowledge. CTO
>>>> http://www.total-knowledge.com
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>> --
>> Ilya A. Volynets-Evenbakh
>> Total Knowledge. CTO
>> http://www.total-knowledge.com
>>
>>
>>
>
>
>

--
Ilya A. Volynets-Evenbakh
Total Knowledge. CTO
http://www.total-knowledge.com

-- 
Alexey Parshin,
http://www.sptk.net