# Planned Maintenance

The Maintenance module is divided into three main parts:

**Components** - Here you have access to all component data and relevant data like planned and executed maintenance jobs and linked spare parts.

**Maintenance** - Here you have access to all features relevant for planning and reporting maintenance jobs.

**Stock Control** - Here you have access to all stock locations and the articles stored there.

*[PO]: Purchase Order  
*[AZA]: local folder
*[(PO]: Purchase Order  
*[RQ]: Requisition  
*[(RQ]: Requisition  
*[RfQ]: Request for Quotation  
*[(RfQ]: Request for Quotation  
*[SO]: Service Order  
*[(SO]: Service Order  
*[SQ]: Service Requisition  
*[(SQ]: Service Requisition  
*[SRfQ]: Service Request for Quotation  
*[OoB]: Open on Board  
*[(OoB]: Open on Board 
*[ART]: Average Running Time (operation hours per day) 
*[MC]: Master Contract
*[ADS]: Advantage Database Server (database engine used in previous versions of the ZeeBORN software)
*[.replic]: file extension for replication files (aka data transfer files)