Constraints refer to non-functional requirements that place limitations on a system such as security, performance, safety, reliability, availability and conformity. Non-functional requirements are constraints or qualities that a system or component should satisfy and are not directly part of its functionality. Common constraints include security, performance, safety, reliability, availability and conformity.

1. What are constraints
Security
Constraints
Performance
Safety
Reliability
Availability
Conformity
Constraints = non functional requirements
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