dhis2-users team mailing list archive

[Jim Grace <jimgrace@xxxxxxxxx>]

Hi Joao,

Can you say more about the semantics of what you want to compare with past
periods? For example, are these cumulative values? What do they measure?

The reason I ask these questions is to understand better the potential
usefulness of adding this feature to DHIS 2. If you have a compelling use
case, and if it is consistent with the philosophy of how DHIS 2 is used,
then it will add more weight to this feature as we compare its priority to
other possible enhancements.

Cheers,
Jim


On Thu, May 14, 2015 at 9:08 AM, Joao Mazuze <Joao_Mazuze@xxxxxxxxxxxx>
wrote:

>  Hi Jim,
>
> Of course I was trying to validate in an input form. In my own case I have
> a set of data elements that after  entered  current period  values for this
> data elements we have to compare with the respective  immediate previous
> period values as in our scenario will not make sense when user enter
> greater values for the current period when compared to previous. That’s why
> I tried to create an example on the demo site as described on my last
> email, but unfortunately did not work, even when running “validation rule
> analysis” after assigned to “validation rule group”, called   *Testing*.
>
>
>
> Kind regards,
>
> Joao
>
>
>
> *From:* Jim Grace [mailto:jimgrace@xxxxxxxxx]
> *Sent:* 14 May 2015 14:53
>
> *To:* Joao Mazuze
> *Cc:* dhis1-users
> *Subject:* Re: [Dhis2-users] Surveillance rules
>
>
>
> Thank you Joao.
>
>
>
> Were you trying to use this validation rule to validate data in an input
> form? Surveillance-type rules are not designed to work this way. They are
> used after data entry to look for patterns in the data, when added to a
> validation rule group and run under "Validation Rule Analysis".
>
>
>
> If you were trying to validate data against previous values, I would like
> to know more about your use case. Can you say more about what the data
> elements are, and how they should relate to previous periods?
>
>
>
> Cheers,
>
> Jim
>
>
>
>
>
> On Thu, May 14, 2015 at 8:30 AM, Joao Mazuze <Joao_Mazuze@xxxxxxxxxxxx>
> wrote:
>
> Thank you Jim,
>
> Here is the problem´s background:
>
> We need to compare current period value from previous one (monthly period)
> as the current one it is mandatory to be greater than other. In this case
> on the demo system I made an example for *Bumban MCHP* org unit,
> comparing between *March 2015* and *April 2015 *for dataelement “BCG
> doses given (<1y)”, for any value applied to this dataelement the
> validation always passes successfully, what is strange, the related
> surveillance rule is called “*testePreviousPeriod”*. Our goal is to be
> able to compare those monthly periodical datavalues.
>
>
>
> Kind regards
>
>
>
> *From:* Jim Grace [mailto:jimgrace@xxxxxxxxx]
> *Sent:* 14 May 2015 14:15
> *To:* Joao Mazuze
> *Cc:* dhis1-users
> *Subject:* Re: [Dhis2-users] Surveillance rules
>
>
>
> Hi Joao,
>
>
>
> A surveillance-type validation rule should work as you say, comparing the
> current values of the left side with previous values of the right side. I
> don't know why you aren't seeing this behaviour.
>
>
>
> When you create a new surveillance-type validation rule, be sure to give a
> non-zero "Sequential sample count" to compare with periods immediately
> preceding the current period, and/or a non-zero "Annual sample count" to
> compare with the same period in past years. If you choose both, it will
> compare the current data with a range of sequential periods in this year
> and in past years.
>
>
>
> If this is not the problem, I would need some more information to
> understand better your situation. If you can reproduce the problem on the
> demo system https://apps.dhis2.org/demo/, or on another system to which I
> can be given access, that might help the most.
>
>
>
> Cheers,
>
> Jim
>
>
>
>
>
> On Thu, May 14, 2015 at 4:22 AM, Joao Mazuze <Joao_Mazuze@xxxxxxxxxxxx>
> wrote:
>
> Hi guys,
>
> I know that surveillance rules compare data from previous periods with the
> current one. Now I need to compare data values from the same data
> elements(left and right side), but the rule ignores the previous value and
> compares only the current value itself which doesn´t make sense as
> surveillance rules compare current values with previous ones. How can I
> solve this?
>
>
>
> Kind regards,
>
> João
>
>
>
> Kind regards
>
> _____________________________________
>
> João Gabriel Mazuze
>
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>
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>
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