Representing binary values with DV_BOOLEAN

Hi Stef, I would probably disagree with you philosophically about the need to absolutely verify the provenance of any clinical assertion. Whilst this might be desirable, I am not sure it is acheivable and we will be relying on trusting colleagues 'opinions' for some time to come. Nevertheless, I a

Representing binary values with DV_BOOLEAN

Hi! On Wed, Feb 9, 2011 at 19:03, Ian McNicoll wrote: > I very rarely now use DV_BOOLEAN when modelling but agree that using > DV_TEXT/CODE_TEXT is a pain to map to a checkbox/radiobutton GUI. Unless you reduce that mapping pain by having nice GUI-hints/directives with documented semantics that

Representing binary values with DV_BOOLEAN

And it's to simplistic too. In that case one also would like to know allergic to which specific type(s) and/or components of penicillin. In that case I also would like to know how that was tested, when and who did that etc., etc. So I guess what's I'm trying to say is: What's the value of such f

Representing binary values with DV_BOOLEAN

In my opinion this discussion is somewhat related with the existence of default values. A checkbox has typically one default value (either true or false). I am not really sure if storing a default value is the same as storing an user selected one. The idea of having 3 values (yes, no, null-flavour

Representing binary values with DV_BOOLEAN

From: openehr-technical-bounces at openehr.org [mailto:openehr-technical-boun...@openehr.org] On Behalf Of Thomas Beale Sent: 09 February 2011 17:30 To: openehr-technical at openehr.org Subject: Re: Representing binary values with DV_BOOLEAN On 09/02/2011 15:05, pablo pazos wrote: I agree with you

Representing binary values with DV_BOOLEAN

All, I'd like to offer a view on this topic. While I have an, as yet, brief involvement into this field of health informatics, I have been involved in 'informatics' outside of health for many years, although that term is not used much outside of healthcare it is a very similar practice. So I'd l

Representing binary values with DV_BOOLEAN

es at openehr.org [mailto:openehr-technical-boun...@openehr.org] On Behalf Of pablo pazos Sent: Wednesday, 9 February 2011 5:19 p.m. To: openehr technical Subject: RE: Representing binary values with DV_BOOLEAN Once, a professor told me: in healthcare there is no boolean data, you need at least three v

Representing binary values with DV_BOOLEAN

To make thing even more complicated (we discussed this already some years ago) the question should be: Does the patient have diabetes according to the definition used commonly in this practice/ hospital/ county/ country/ part of the world. Don't remember it exactly but back then I could easily

Representing binary values with DV_BOOLEAN

2011/2/9 pablo pazos > I mean: when there is no data, it is taken as false, but what happen if > the person who do the questionnaire do not try to make this question false? > I do not agree with this. When there is no data, there is no data, neither true nor false. And the null flavour gives u

Representing binary values with DV_BOOLEAN

I should have added that this is not an openEHR issue but applies to the whole of health informatics and would, IMO, make an excellent subject for a PhD. We badly need the kind of academic analysis equivalent to Alan Rector's work on the 'clinical statement' pattern which underpins most of SNOMED,

Representing binary values with DV_BOOLEAN

Interesting discussion. The big problem with DV_BOOLEAN is that it subverts the standard 'clinical statement model' used in current health informatics. e.g The patient has diabetes (DV_CODED_TEXT) ) vs. Does the patient have diabetes ? Y/N (DV_BOOLEAN). This of course complicates looking for pat

Representing binary values with DV_BOOLEAN

On 09/02/2011 15:05, pablo pazos wrote: > I agree with you Thomas but there's always some implicit semantics, I > mean: when there is no data, it is taken as false, but what happen if > the person who do the questionnaire do not try to make this question > false? May be he/her didn't want to ans

Representing binary values with DV_BOOLEAN

thomas.be...@oceaninformatics.com To: openehr-technical at openehr.org Subject: Re: Representing binary values with DV_BOOLEAN certain kinds of questionnaires are constructed with (some) purely boolean questions as well. - thomas On 09/02/2011 09

Representing binary values with DV_BOOLEAN

From: openehr-technical-boun...@openehr.org [mailto:openehr-technical-bounces at openehr.org] On Behalf Of Koray Atalag Sent: Wednesday, 2 February 2011 12:40 PM To: For openEHR technical discussions Subject: Representing binary values with DV_BOOLEAN Hi All, I'd like to get feedback on

Representing binary values with DV_BOOLEAN

certain kinds of questionnaires are constructed with (some) purely boolean questions as well. - thomas On 09/02/2011 09:26, Derek Meyer wrote: > > There may be some genuine boolean data. For example, either consent > has been given for a procedure or it has not. NULL in this case = false. > >

Representing binary values with DV_BOOLEAN

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Representing binary values with DV_BOOLEAN

echnical at openehr.org Subject: RE: Representing binary values with DV_BOOLEAN Date: Wed, 9 Feb 2011 11:54:49 +0930 Hi The issue needs to be discussed first in the modelling of the archetype. If a Boolean is accepted at this level then that is what it is (for the moment) and how that is disp

Representing binary values with DV_BOOLEAN

ully getting somewhere. Any thoughts? Cheers, -koray -Original Message- From: openehr-technical-bounces at openehr.org [mailto:openehr-technical-boun...@openehr.org] On Behalf Of Diego Bosc? Sent: Wednesday, 2 February 2011 4:28 p.m. To: For openEHR technical discussions Subject: Re: Repre

Representing binary values with DV_BOOLEAN

That seems a clear 'null flavour' use case 2011/2/2 Fabiane Bizinella Nardon : > > I came across this problem several times. It became almost impossible to use > DV_BOOLEAN. The worst problem is that since DV_BOOLEAN has to be always true > or false, if someone simply does not fill the field, it b

Representing binary values with DV_BOOLEAN

Hi All, I'd like to get feedback on this issue before we move on with implementing. In short whether we should use DV_BOOLEAN to represent the result of a Lab test as Positive/Negative. This particular test can have only two values (well plus the null case of course). I suspect this wasn't the

Representing binary values with DV_BOOLEAN

edIn: http://uy.linkedin.com/in/pablopazosgutierrez Blog: http://informatica-medica.blogspot.com/ Twitter: http://twitter.com/ppazos > Date: Wed, 2 Feb 2011 14:59:02 +0100 > Subject: Re: Representing binary values with DV_BOOLEAN > From: erik.sundvall at liu.se > To: openehr-technical

Representing binary values with DV_BOOLEAN

On Wed, Feb 2, 2011 at 13:32, Thomas Beale wrote: > The GUI / practical issues... > I would steer clear of trying to directly infer the GUI control to use from > the archetype on its own. I agree that most often such combobox vs radio-style hints would be wrong at an archetype level. I was more t

Representing binary values with DV_BOOLEAN

/Philosophical issues/ We have to be very careful with what can be modelled using Booleans and what cannot be. If a lab is returning results whose values (the values they provide, not you, the receiver!) can include Positive/Negative/Indeterminate, this is not a boolean situation, it is probab

Representing binary values with DV_BOOLEAN

Is much different to change the field from 'test result:positive/negative' to 'test result positive:true/false'? If the semantics if not the same then the 'positive/negative' has more meaning that a simple boolean and I think they should be coded 2011/2/2 Koray Atalag : > Hi All, I?d like to get f

Representing binary values with DV_BOOLEAN

Hi! Good points from both of you, I just want to add a thought. When designing or locally adapting GUIs I think it can be valuable to have the option to use radio-buttons (or widgets with similar visibility and semantics) also for DV_CODED_TEXT items if you know that the number of options are sma

Representing binary values with DV_BOOLEAN

I came across this problem several times. It became almost impossible to use DV_BOOLEAN. The worst problem is that since DV_BOOLEAN has to be always true or false, if someone simply does not fill the field, it became immediately "false", which almost always was not what the user wanted. The s