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Reference Guide
This guide describes conceptual information about data design environment components when you want to use the data fabrication feature in HCL OneTest™ Server.
Schema design
A schema is a graphical data dictionary that contains metadata definitions of the structure of a document to generate test data. Schema provides visual cues for understanding the structure and complete definition of an object.
Type properties
The properties of a type define the characteristics of the data objects of that type.
Basic type properties
Class

Reference Guide
This guide describes conceptual information about data design environment components when you want to use the data fabrication feature in HCL OneTest™ Server.
- Files
  You add a file to a project to use it as input in the project. You can upload a file from your local file system to a project from the Files tab to generate test data. Alternatively, you can upload it when you define an action.
- Connections
  A connection defines the properties that are required to connect to an external resource. An action uses a connection to provide source data to a project or write data from a source to a target. Multiple actions can use the same connection. You can define both connections and actions at the project level.
- Schema design
  A schema is a graphical data dictionary that contains metadata definitions of the structure of a document to generate test data. Schema provides visual cues for understanding the structure and complete definition of an object.
  - Introduction to schema design
    Use the Schemas tab to define, modify, and view schemas. A schema describes the syntax, structure, and semantics of your data.
  - Type properties
    The properties of a type define the characteristics of the data objects of that type.
  - Item restrictions
    Item restrictions are an optional feature you can use to specify valid or invalid data objects for an item type. Item restrictions are grouped into three categories: Value, Character, and Range.
  - Components
  - Partitioning
  - Type inheritance
  - Schema analyzer
  - Distinguishable objects
  - Functions and expressions

Class

The class of a type describes whether the type represents a simple data object (item), a complex data object (group), or whether is used to organize types (category). Define the class of the selected type by selecting the check box.

Category: Categories organize types that have common properties. Each category has a set of item properties and a set of group properties. Subtypes of the category inherit these properties.
A category does not define data objects in detail. A category type may be a component of a partitioned group, after a component with the identifier attribute. A category cannot be a component of a non-partitioned group.
Item: The item type represents a simple data object that does not consist of any objects. An item does not have components.
Group: The group type represents a complex data object that consists of components.

To change a type's class, select the type and choose the desired class in the Properties window.

If you change a type to an item, all the types in its subtree become items. If you change a type to a group, all the types in its subtree become groups. This is because the schema has a classification hierarchy and all the nested subtypes of an item must be items. Similarly, all the nested subtypes of a group must be groups.