which adapters can i use for my req??

Hi friends,

My requirement is..

System X shall get some info and some data base server Y shall be updated. This Y shall trigger some messages to MQ series (am not clear what is this MQ series). Now my R/3 shud create orders with the info thats is in Y.

1. What is Mq series. Is it a middleware or simple messaging system.

2. will it make sense to get data from MQ series and integrate XI to R/3.

3. or shud I use Y system as source of data.

Plz help me out.

Thanks,

Kiran