MISSION NEED STATEMENT

Description

Using the results from the mission analysis, human factors inputs to the mission need statement (MNS) identifies the human performance constraints and issues that need to be addressed or resolved.  This information may come from operations and maintenance concepts, similar systems or components, and other documents that may provide insights into the effects of human factors constraints and limitations on system performance.

Since most acquisitions are evolutionary, important human factors information can be obtained from predecessor systems or their component subsystems. Analyses and trade-off studies may be required to determine the effects of constraints and issues on system performance.  The existing literature and lessons learned data bases should be reviewed.