Systems Engineering Glossary
The relationships among milestones and/ or activities that affect other milestones.
The characteristics that are required to form the boundary between entities.
|Interface Controlled Document (ICD)|
A statement of the functional, physical, logical, and electrical constraints that exist between multiple entities that describe how they fit together.
|Key Decision Point (KDP)|
|Key Performance Parameters (KPPs)||
The minimum number of attributes or characteristics that are considered essential for an effective capability.
An existing system that must be taken into account when developing a new system.
|Life Cycle Cost (LCC)|
|Life Cycle Model||
A framework depicting the phases of processes and activities necessary for system implementation.
The ability, ease, and swiftness to restore a system to functionality after a failure or defect.
|Measure of Effectiveness (MOE)||
A measure that indicates how well a system achieves intended operational capabilities in its intended environment.
|Measures of Performance (MOP)||
Quantifiable measures of how well a system is expected to satisfy defined parameters in its operational environment.
A specific definable accomplishment at a given point in time where approval is sought to start or continue into the next phase of the program.
A representation of a real-world process, concept, or system that uses logical expressions to predict how a system might perform under different conditions.
|Model-Based Systems Engineering||
Formal utilization of models to support all technical Systems Engineering (SE) activities throughout the life cycle phases.