Level of Trust: floating point number value accepted between 0 and 1. This value is passed into every QA Event created by every LDN Message

associated with this Notify Service: it goes to evaluate the "score" attribute of the QA Event. Score attribute is used for rejection/acceptance

qa event automation. See the project file dspace/config/spring/api/qaevents.xml on the bean qaAutomaticProcessingMap/qaScoreEvaluation

Service IP Range: two IP numbers expected as minimum and maximum. This range can be used to add a filter to entrust the identified Notify Service of 

every incoming LDN Messages. If IP Range is enabled, the sender Notify Service is identified but the current LDN Message is coming from an IP

out of this range - the LDN Message is set as untrusted.

LDN Inbox URL: every incoming LDN Message must have an identifiable Notify Service. This is the URL of that external system's LDN Inbox.

We match this field to the "origin.inbox" attribute of the incoming LDN Message. Despite the ip range - this This field is mandatory. 

Every incoming LDN Message with a non-identifiable Notify Service associated is setas set as untrusted and won't be enrouted to the Ldn Router.

Inbound Pattern: stored into the database table notifyservice_inbound_pattern - we can add at least 1 of them for each Notify Service. Every inbound

pattern is the triple of [ pattern, item filter, automatic flag ] :

• pattern: see https://notify.coar-repositories.org/patterns/ for all possible combinations, currently are hardcoded on the angular frontend project;
• item filter: known on DSpace and declared onto dspace\config\spring\api\item-filters.xml
• automatic flag: when activated the ldn message exchange starts automatically at the item submission time. Automatic triggers an Outgoing LDN
  message targeting the Notify service and the item in submission. The automatic flag involves only the submission phase of an item.
  If no item filter is set - the flag is applied on all submissions.