> For the complete documentation index, see [llms.txt](https://docs.rhinofcp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rhinofcp.com/data-schemas/data-schema-field-attributes-and-field-permissions.md).

# Data Schema Field Attributes and Field Permissions

## Data Schema Field Attributes

![](/files/c491e395fe0bff4c31ff44cde2fc4856a87c33de)

For each field in the Data Schema, the following attributes are defined:

* **Name:** the name of this field
* **Identifier:** the string by which this field should be identified in the input data (if empty, the Name field will be used for identification)
* **Description:** a description of the field (including any information that can help collaborators put the data in the correct format)
* **Type:** the name of the field type. Please refer to [Supported Data Schema Data Types](/data-schemas/supported-data-schema-data-types.md) for a full list of supported data types within the Rhino FCP
* **Type Params:** any parameters for the field type (e.g., min/max values for a ContrainedInt type). Please refer to [Supported Data Schema Data Types](/data-schemas/supported-data-schema-data-types.md) for a full list of supported parameters for each data type within the Rhino FCP
* **Units:** the units in which the values of this field are expected to be. These units will also appear in charts showing aggregate values from this field in the Rhino UI
* **Sensitive Data:** whether or not this field may contain sensitive data
* **Aggregate Statistics:** the field's underlying data is only persisted on-prem, and **NO** aggregate statistics can be viewed in the cloud. This field can be viewed via Secure Access, given the proper permissions.
* **Secure Access:** the field's underlying data is only persisted on-prem, and aggregate statistics can be viewed in the cloud. **This field isn’t viewable via Secure Access.**

## Data Schema Field Permissions

For each variable defined within a schema, one of the following permission profiles can be applied:

* **Default:** The variable's underlying data only persists on-prem, and aggregate statistics can be viewed in the cloud. This field can be viewed via secure access given the proper permissions.
* **No Aggregate Statistics:** The variable's underlying data only persists on-prem, and **no aggregate statistics** can be viewed in the cloud. This field can be viewed via secure access given the proper permissions.
* **No Secure Access:** The variable's underlying data only persists on-prem, and aggregate statistics can be viewed in the cloud. **This field isn’t viewable via secure access.**
* **Local Only:** The variable's underlying data only persists on-prem, and **no aggregate statistics** can be viewed in the cloud. **This field isn’t viewable via secure access.**