Please define limitation and add to the DAU Glossary.
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In general “limitation” would refer to anticipated or observed performance boundaries related to a system or design. These might be inherent to the environment, materials, or simple physics involved. They may be the planned or unintended results of decisions made during trades imposed by cost, schedule, or performance. In a more specific context, limitations are expressed to describe inherent limitations in performance or activity. Commonly encountered descriptions of limitations are below.
Test and Evaluation: Limitations to testing are articulated in the TEMP to inform decision makers and testers on the inherent limitations to the planned testing. An example would be that due to resource limitations, only certain performance parameters will be tested.
System Description: Limitations to system design performance should be discussed with respect to impacts on delivering a capability or fulfilling a requirement. These limitations may result from any number of constraints placed on the design (interfaces, materials, form factor, operating environment, performance trades, etc.)
Capabilities and Limitations discussions and descriptions should identify specific systems capabilities in delivering desired KPP and KSA performance. Similarly, limitations known or expected should be fully discussed as to expected impact, degradation of overall system capability (speaks to Measures of Effectiveness and Measures of Suitability), proposed mitigations and alternatives to reduce or eliminate limitations if they impact satisfaction of KPP/KSAs or other desired performance parameter.
The idea is to adequately describe the expected limitation and impact on the performance of the system in order to inform the decision-making process and to provide a realistic assessment of overall system performance.