The Infowise Connected Field is a custom field type that adds functionality beyond the built-in lookup field. Some of the advanced features include: the field can function as a stand-alone lookup column or as a master-detail cascading lookup column; filtering values in your list according to another list's views; adding new values directly from the column. The Connected Field column can be attached to master column with both single and multiple selections, and also be configured to allow single or multiple selections of values.
The field can be used as a regular list column or as a site column. Site columns can be re-used across the site collection on the site where it was defined and all the subsites. It can be added to a list directly or added to a content type to be reused. Please note that both the master lookup column and the master-detail lookup column must be present in the same content type/list.