dhis2-users team mailing list archive

[Bob Jolliffe <bobjolliffe@xxxxxxxxx>]

Hi Uwe

On 27 May 2016 at 12:45, Uwe Wahser <uwe@xxxxxxxxx> wrote:
> Hi Lars,
>
> can you kindly verify your explanation about uniqueness of option codes?
>
> It would be great if they hadn't to be unique system-wide, but I just tested it
> on snapshot, and it seems to me that option codes codes must still be unique.
> Which is in fact not really interesting: this way you cannot use simple F and M
> for female/male as F might stand for False in another category. This is
> especially difficult when you are dependent on the codes that are coming from a
> source system.

Agree.  That is in fact what  address in my proposal.  codes (and
labels) should be unique within the scope of a codelist.  Many
categories can draw off a codelist.  There can be many codelists.
Codelists represent a list of possible codes for a given concept (
age_group, gender, disease, stock status etc).

Codelists should be importable/exportable to other systems.  Hence
there are no uniqueness requirements across codelists.

Your temporary solution is probably best you can do at present.

> My temporary solution is to prefix each code with a code for the category e.g.
> GEN.F/GEN.M for gender female/male and HPY.T/HPY.F for happy or not happy. But
> that's not really nice for the outputs and exports. Imagine having a simple
> number code (like Month) that is presented as MON.10, Mon.11 etc. in charts and
> pivots ...
>
> Thanks and regards,
>
> Uwe
>
>> Bob Jolliffe <bobjolliffe@xxxxxxxxx> hat am 23. Mai 2016 um 15:09 geschrieben:
>>
>>
>> I think (semantically) the correct way is to create a new "Unknown"
>> option, though it should have a different code and uid from other
>> unknowns.  The displayed label just happens to be the same but the
>> underlying concept is different.  That is, they actually represent the
>> likes of "Unknown age", "Unknown test result", "Unknown sex" etc.
>> Despite sharing the same text label, they are really quite different
>> options.
>>
>> There is a similar issue we have grappled with
>> categories/categoryOptions which is resolved in a different (also
>> slightly unsatisfactory) way.
>>
>> My longer term view is that options should be able to be reused in
>> different optionsets, but not in a completely free manner.
>>
>> There is some experience of the problem outside of dhis2 and I believe
>> the established consensus is that
>> (i)  codes/options in a controlled vocabulary are contained in a code
>> list.  Every item in that list should be uniquely identifiable.
>> (ii)  these items should relate to a specific concept (age, disease,
>> test result etc)
>> (ii)  value sets (such as categories and optionsets in dhis2) should
>> be selected from one and only one codelist.  There can be any number
>> of valuesets for any one codelist.  This allows for reuse of items but
>> disallows a valueset with mixed concepts (ie you couldn't construct an
>> optionset containing 'Malaria','Male','under5','Unknown')
>>
>> If we do get to re-examine our model in this area, this is the
>> approach I would advocate.
>>
>>
>>
>> On 23 May 2016 at 12:35, Lars Helge Øverland <lars@xxxxxxxxx> wrote:
>> > Hi Lise,
>> >
>> > at the moment you must create a new "Unknown" option. You can give it the
>> > same name and code though as the other Unknowns. The uid will be different.
>> >
>> > It is debatable whether this is the right way. We are considering whether to
>> > change the design to allow for re-use of options.
>> >
>> > regards,
>> >
>> > Lars
>> >
>> >
>> > On Sun, May 22, 2016 at 6:50 PM, GROUT, Lise <groutl@xxxxxxx> wrote:
>> >>
>> >> Dear Markus and Prosper,
>> >>
>> >>
>> >>
>> >> Thank you for your help!
>> >>
>> >>
>> >>
>> >> So if I understand correctly, I have to create different options (with
>> >> different UID and codes) but I can reuse the same option name?
>> >>
>> >>
>> >>
>> >> Thank you!
>> >>
>> >>
>> >>
>> >> Lise.
>> >>
>> >>
>> >>
>> >> From: Prosper BT [mailto:ptb3000@xxxxxxxxx]
>> >> Sent: 22 May 2016 18:11
>> >> To: GROUT, Lise; dhis2-users@xxxxxxxxxxxxxxxxxxx
>> >> Subject: Re: [Dhis2-users] Option, option set and dataelement
>> >>
>> >>
>> >>
>> >> Dear Lise
>> >>
>> >>
>> >>
>> >> We don't have uniqueness in options across different option sets. So it's
>> >> possible to use same options names in different options sets.
>> >>
>> >>
>> >>
>> >> Regards
>> >>
>> >>  22, 2016, 6:51 PM GROUT, Lise <groutl@xxxxxxx> wrote:
>> >>
>> >> Dear all,
>> >>
>> >>
>> >>
>> >> Sorry for this basic question but I prefer to ask for confirmation.
>> >>
>> >>
>> >>
>> >> Can we use the same option in different option sets (for example
>> >> positive/negative in different option Sets) and the same option sets in
>> >> different dataelements (for example the option sets results for different
>> >> tests)?
>> >>
>> >>
>> >>
>> >> Thanks!
>> >>
>> >>
>> >>
>> >> Lise.
>> >>
>> >>
>> >>
>> >> _______________________________________________
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>> >>
>> >> _______________________________________________
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>> >>
>> >
>> >
>> >
>> > --
>> > Lars Helge Øverland
>> > Lead developer, DHIS 2
>> > University of Oslo
>> > Skype: larshelgeoverland
>> > lars@xxxxxxxxx
>> > http://www.dhis2.org
>> >
>> >
>> > _______________________________________________
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>> >
>>
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