Other developers can easily see the types your service expects as inputs and produces as output.Other developers can easily see the types your service expects as inputs and produces as output.Other developers can easily see the types contained in an IS document type.You can input values for the variable when running and debugging.You can assign values to variables in the pipeline using 
on the Pipeline view toolbar.Data Type | Icon | Description | Java Class |
boolean |  | True or false. | java.lang.Boolean |
boolean list |  | A one-dimensional boolean array. | java.lang.Boolean[ ] |
byte |  | Signed integer. The value must be greater than or equal to –128 but less than or equal to 127. | java.lang.Byte |
byte [ ] |  | A one-dimensional byte array. | primitive type |
byte list |  | A one-dimensional byte array. | java.lang.Byte[ ] |
character |  | A single unicode character. | java.lang.Character |
character list |  | A one-dimensional character array. | java.lang.Character[ ] |
date |  | Date and time. | java.util.Date |
date list |  | A one-dimensional date array. | java.util.Date[ ] |
double |  | Double-precision floating point number. | java.lang.Double |
double list |  | A one-dimensional double array. | java.lang.Double[ ] |
float |  | Standard-precision floating point number. | java.lang.Float |
float list |  | A one-dimensional float array. | java.lang.Float[ ] |
integer |  | Signed integer. The value must be greater than or equal to -2147483648 but less than or equal to 2147483647. | java.lang.Integer |
integer list |  | A one-dimensional integer array. | java.lang.Integer[ ] |
long |  | Signed integer. The value must be greater than or equal to –9223372036854775808 but less than or equal to 9223372036854775807. | java.lang.Long |
long list |  | A one-dimensional long array. | java.lang.Long[ ] |
short |  | Signed integer. The value must be greater than or equal to -32768 but less than or equal to 32767. | java.lang.Short |
short list |  | A one-dimensional short array. | java.lang.Short[ ] |
XOPObject |  | A field in a SOAP message that is to be sent/received as a streamed MTOM attachment. Note: Integration Server only supports this Java wrapper type for web services. | com.wm.util.XOPObject |