# Defining contexts and variables in a Job script
Use the DEFAULT\_CONTEXT to specify the default context, and use the ContextType {} function to define contexts and their parameters.
## ContextType {} properties
| Function/parameter | Description | Mandatory? |
| --- | --- | --- |
| NAME | Give a name to the context. | Yes |
| addContextParameter {} | Define a variable for the context. Use this function to define as many variables as needed.
NAME: Give a name to the variable.
TYPE: Specify the type of the variables. Acceptable values:
id_Boolean
id_Character
id_Date
id_Double
id_Float
id_Integer
id_Long
id_Short
id_String
id_Object
id_BigDecimal
id_File
id_Directory
id_List Of Value
id_Password
VALUE: Type in the value of the variables.
COMMENT: Type in a text comment.
PROMPT: Type in the prompt message.
PROMPTNEEDED: Set this parameter to true to trigger a prompt for this variable at Job execution.
| Yes |
## Example
The following Job script example defines two contexts: Test (default context) and Prod, each with one variable named child\_job of type String. For context Test, the predefined variable value is child\_1, while for context Prod it is child\_2. When the Job is executed, a text message Specify the Job to run: is displayed.
```
DEFAULT_CONTEXT: Test,
ContextType {
NAME: Test
addContextParameter {
NAME: child_job,
TYPE: "id_String",
VALUE: "child_1",
PROMPT: "Specify the Job to run:",
PROMPTNEEDED: true
}
}
ContextType {
NAME: Prod
addContextParameter {
NAME: child_job,
TYPE: "id_String",
VALUE: "child_2",
PROMPT: "Specify the Job to run:",
PROMPTNEEDED: true
}
}
```