Every data model has a directory with examples of the payloads (json and jsonld) in key-values and normalized formats.
But it also includes examples of csv that it could help to connect the data models for other platforms.
Now, these examples are re-created automatically once a day.
The naming convention for these examples are the same name of the original payload plus a .csv suffix.
An example for the Battery data model examples.
Best.
In the upper menu (option Search descriptions) there is a searchable database of the descriptions for all the properties across the different data models.
Try it out here.
This DDBB is updated daily.
Smart water data models for subject water network management have been updated to align them with current guidelines.
These data model will allow you to connect your NGSI platform with EPANET.
There are no structural changes, but the definitions are located in the subject shared schema.
It affects to
1.- It is just a technical improvement but now you can access everything in this site with https://data-models.fiware.org.
2.- The issue form has also been improved with new options but simplified structure.
Check it out and please report any issue.
Best
Every subject had a file named CONTRIBUTORS.md which compiles all contributors to the different data models in this subject. However, from the point of view of the management, it was not a structured format. Due to this, it is going to be replaced with a new file named CONTRIBUTORS.yaml with the same info but structured so we could manage properly and answer questions like:
Now there is also a field for allocating comments.
The format is friendly enough to be simply edited but at the same time, it can be automatically processed.
Next week CONTRIBUTORS.md will be removed from the different repos.
Now it is based on a responsive interface with these options:
In order to create a new data model is always interesting what others have done in order copy and to maintain interoperability.
That’s why we have available a database with all attributes and enumerations across all data models. 
Now it’s updated daily and the number of occurrences is also available.
We are testing a potential new format for the specification that
1) makes easier for people to read the specification
2) provides additional utility to be connected with other platforms making NGSI more compatible
Could you check these two new specifications Building, BuildingOperation compared with the old two Building, BuildingOperation and gives us your opinion?
(once in, click on the name of the object for deploying all the content)
[cf7form cf7key=”new-specification-format”]The actual new specs are here without viewer (building, building operation) what you see above is generated automatically from the yaml specs.
What’s the idea behind adopting yaml specifications? To allow multiple evolutions (automatic multilanguage spec, integration with other platforms, etc)
In the pending repository (the place where the data models can be developed if you wish) there is an interesting working going on about sensoring related to water management.
In development is :
– A data model for the actuator
– A data model for the service which is related to the actuator
– Modifications of the device data model
– A data model for a gateway gathering the data of a group of sensors
They are in the very early stages (so not that much is being contributed).
These contributions are based on the works of the EU project FIWARE4WATERÂ in its group of IoT data models. You can contact them here.
Some of the contributors have requested some help about creating new data models. How to do it and where to do it.
HOW TO CREATE DATA MODELS
1) If you are clear about the payloads that you want to share (you have a plain key values json payload)
2) You can use this tool https://www.liquid-technologies.com/online-json-to-schema-converter (This link is always available in the Learning Zone on the upper menu, section tools)
to generate a draft version of the json schema. You will have to review (for sure).
– Whether you need some restrictions (min, max) on number properties
– The number of required properties
– The full list of options in enumeration properties
– Remove the context (it is treated as property)
– Check the Arrays (minItems, etc)
and possibly some other minor issues
WHERE TO CREATE DATA MODELS
3) We offer an open repository named pending for you to contribute while developing. Ask for access raising an issue with the option ‘Access to pending repository’
http://data-models.fiware.org/index.php/submit-an-issue-2/
Slack channel
Discord channel #smart-data-models
help on discord
Invitation to discord 
Validate a payload with a data model(external)
