This micro-service web component provides a user with a web application to display, create and update information of the layout items. It is dependent on two other components:
- RLDS, which provides services to access the MongoDB collection of layout documents
- ISMS, which provides services to store information when a micro controller starts
- ISTS, which subscribes to turnout contact messages and passes them to MRLM
- IPTS, which publishes command messages to turnouts
The following figure shows the MRLM micro-service in context of the other micro-services needed to provide the application ability to manage inventories.

The following screen shots, show layout item lists.