[Backlogmanager] [FIWARE-JIRA] (HELP-17749) [fiware-stackoverflow] FIWARE entity as a group of KPI attributes

[Fernando Lopez (JIRA)]

     [ https://jira.fiware.org/browse/HELP-17749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fernando Lopez reassigned HELP-17749:
-------------------------------------

    Assignee: Fermín Galán

> [fiware-stackoverflow] FIWARE entity as a group of KPI attributes
> -----------------------------------------------------------------
>
>                 Key: HELP-17749
>                 URL: https://jira.fiware.org/browse/HELP-17749
>             Project: Help-Desk
>          Issue Type: Monitor
>          Components: FIWARE-TECH-HELP
>            Reporter: Backlog Manager
>            Assignee: Fermín Galán
>              Labels: fiware, fiware-orion
>
> Created question in FIWARE Q/A platform on 20-05-2021 at 07:05
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/67616280/fiware-entity-as-a-group-of-kpi-attributes
> +Question:+
> FIWARE entity as a group of KPI attributes
> +Description:+
> Our system needs to return several KPIs grouped in different topics:
> Census:
> citizens (number of inhabitants)
> citizens without any studies
> ...
> Information desk
> Phone response time
> Mail response time
> ...
> Tax
> Online payments
> Window payments
> ...
> To my understanding, it would make sense to have an entity for each topic and each KPI being a KeyPerformanceIndicator attribute. eg: This could work similar to:
> {
>     "description": "Census Information system",
>     "dataProvided": {
>         "entities": [
>             {
>                 "idPattern": ".*"
>             }
>         ],
>         "attrs":[    //THIS SEEMS AN INTERESTING APPROACH, BUT SADLY ALSO INVALID
>             {
>                 "name": "citizens",
>                 "type": "KeyPerformanceIndicator"
>             },
>             {
>                 "name": "citizens_without_studies",
>                 "type": "KeyPerformanceIndicator"
>             },
>             //...
>         ]
>     },
>     "provider": {
>         "http": {
>             "url": "http://myhost/v2/census"
>         }
>     }
> }
> (TL;DR: "attrs" supports strings only, so can't return complex/data modeled types, like KPI)
> Setting this happy idea aside, what it would be a good approach to solve this?
> Must each KPI be an entity?
> Is NGSI-LD what I'm looking for?



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