---
tags:
- "⭐topic/\U0001F4BEsoftware/colleague"
- "\U0001F6A9purpose/ℹ️documentation"
---
# DMI   
   
The DMI (Datatel Messaging Interface) is a message queue and broker protocol that communicates between DMI Listeners and other Colleague utilities, including the the [DMI Registry](../../notes/Colleague/Registry%20%26%20Resources.md). Some forms/screens that interact directly with the DMI protocol/messagebus, DMI Registry, or DMI Listeners are named as such (**DRUS**, **DPWP**...).   
   
## Listeners   
DMI Listeners are Java-based programs that interpret commands between two software components that do not have a common command set, such as [LDAP](../../notes/Colleague/LDAP%20integration.md) and DMI to provide user logins via LDAP.   
   
## Registry   
From the standpoint of DMI itself, the DMI Registry is named as such because it contains records that are often pulled from, synced with, or authenticated by DMI Listeners. I do not believe Colleague uses the DMI internally for the Registry. Not sure of the history around this naming scheme.