For certain management reasons, the eXtended DIS interface (X-DIS) provides secured remote access to the operational DIS. The configuration of the eXtended DIS interface is part of the corresponding ExpeditionDIS or CurationDIS. The DIS-Administrator defines which data is shown, which forms, reports, or data views can be selected, and who is authorized to edit (insert, overwrite, delete) which subset of data.
One advantage is that the DIS-Adminitsrator can perform certain maintenance features from remote, another advantage is that certain project members, e.g. principal investigators or chief scientists can use it for remote cross-checking and quality control.