Gary S. Thompson wrote:
> Tim Stevens wrote:
>
>>> Ok that fair enough but begs some questions
>>> 1. how do I know it is optional?
>>>
>>
>>
>> The clues are that they are not always set, the enumeration is
>> limited and the cardinality of the child link is 0..*.
>>
>> This may sound weak, but it is like many bits of the data model to
>> take a
>> random example: Experiment.sampleVolume - there will be a value but it
>> needn't be recorded. Things are just filled in by the user or
>> application
>> as things are discovered or when they are needed.
>>
>> T.
>>
>>
>>
> Many Thanks
> that all makes sense now. Obviously haven't been that subtle enough
> (yet) though I guess I will learn to be ;-)
>
>
> regards
>
> gary
>
Unfortunatley I have concluded that that doesn't make complete sense
sense after all, following a night with my subconcious ruminating on it.
Here is my logic (please go ahead and pick holes or ignore it as you wish)
1. I Expected without looking at the documentation that expTransfers may
or maynot be there, as I knew that I had to set an ExpProtoype after
opening new spectra (which I could fail to do)
2. Thus on the basis of least suprise (as the documents don't say what
to expect) I either expected a full set of transfers which described the
experiment and all connections or no tranfers at all
so a thought or two
how do I know which transfers will be missing is it
1. those that are composites and can't be defined by the relevant
enumeration
2. a subset that aren't useful to vanilla analysis
secondly (this maybe a bit nit picky so please ignore it if you wish)
Analysis is a program maninly for users with there being a proponderence
of non programmers but some users who program against it as well. If I
am in the second camp should I just ignore expTransfers because they are
unreliable?
regards
gary
>> -------------------------------------------------------------------------------
>>
>> Dr Tim Stevens Email: [log in to unmask]
>> Department of Biochemistry [log in to unmask]
>> University of Cambridge Phone: +44 1223 766022 (office)
>> 80 Tennis Court Road +44 7816 338275 (mobile)
>> Old Addenbrooke's Site +44 1223 364613 (home)
>> Cambridge CB2 1GA WWWeb: http://www.bio.cam.ac.uk/~tjs23
>> United Kingdom http://www.pantonia.co.uk
>> -------------------------------------------------------------------------------
>>
>> ------
>> +NH3CH(CH(CH3)OH)C(O)NHCH(CH(CH3)CH2CH3)C(O)NHCH(CH2CH2SCH3)CO2- -------
>> -------------------------------------------------------------------------------
>>
>>
>> .
>>
>>
>>
>
>
--
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Dr Gary Thompson
Astbury Centre for Structural Molecular Biology,
University of Leeds, Astbury Building,
Leeds, LS2 9JT, West-Yorkshire, UK Tel. +44-113-3433024
email: [log in to unmask] Fax +44-113-2331407
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