[Backlogmanager] [FIWARE-JIRA] (HELP-13317) [fiware-stackoverflow] Orion Context Broker - references to data models

[Fernando Lopez (JIRA)]

     [ https://jira.fiware.org/browse/HELP-13317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fernando Lopez reopened HELP-13317:
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> [fiware-stackoverflow] Orion Context Broker - references to data models
> -----------------------------------------------------------------------
>
>                 Key: HELP-13317
>                 URL: https://jira.fiware.org/browse/HELP-13317
>             Project: Help-Desk
>          Issue Type: Monitor
>          Components: FIWARE-TECH-HELP
>            Reporter: Backlog Manager
>              Labels: fiware, fiware-orion
>
> Created question in FIWARE Q/A platform on 29-12-2017 at 13:12
> {color: red}Please, ANSWER this question AT{color} https://stackoverflow.com/questions/48022647/orion-context-broker-references-to-data-models
> +Question:+
> Orion Context Broker - references to data models
> +Description:+
> I'm preparing laboratory script for presenting features of of OCB, however
> there is a misconception on how OCB references to Data Models defined by
> FIWARE. I'm aware of parameter 'type', which is supplied along with new
> entity. The problem is connected to OCB. How does it difference between data models?
> I can add variables from different data model which don't match. I
> can't find the controller for it and if there is no any that's really shame. The problem I got is connected with situation:
> Creating entity with declared type for instance: Device
> Adding some parameter, which is not specified in Device schema. It could be dateLastWatering from Garden data model. 
> It doesn't make any sense, how the OCB reacts to that? 
> From my experience it just "swallows" the updated content as long as semantic of command is correct. 
> I received information that a restriction can be implemented in application layer, however in my opinion it should be supplied along with OCB already. 
> That way model can be mistaken and the example is not really educational. It
> could be useful if after defining a model for entity, OCB could interact
> somehow with user and check, or debug what it receives. That way it would be
> more professional I guess and fore sure more safe to use. If OCB doesn't have
> that feature is there a possibility for further development?



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