ServiceNow class attributes can contain values that reference another entity (class), or their value can be entered by the user. Attributes that relate to other entities are designated by ServiceNow as “reference” or their value can be obtained from a “select box” as explained below:
Sys_Choice and Reference Attributes: ServiceNow can relate its classes by using two types of attributes, type “reference” and “sys_choice”. The reference type attributes can be found as shown in the image in the type column:
While the value can be selected from a “select box”, is working with type attributes “sys_choice”, the contained values are added to the “sys_choice” and are related to the CI class
