page_title: Mixed criticality
hierarchical_section_title: Mixed criticality
caption_attribution_description: Deutsch: Bildschirm mit aktuellen Flugdaten in der Passagierkabine eines Flugzeugs. English: In-flight information system in the passenger compartment of an airplane.
context_page_description: A mixed criticality system is a system containing computer hardware and software that can execute several applications of different criticality, such as safety-critical and non-safety critical, or of different Safety Integrity Level. Different criticality applications are engineered to different levels of assurance, with high criticality applications being the most costly to design and verify. These kinds of systems are typically embedded in a machine such as an aircraft whose safety must be ensured.
context_section_description: A mixed criticality system is a system containing computer hardware and software that can execute several applications of different criticality, such as safety-critical and non-safety critical, or of different Safety Integrity Level (SIL). Different criticality applications are engineered to different levels of assurance, with high criticality applications being the most costly to design and verify. These kinds of systems are typically embedded in a machine such as an aircraft whose safety must be ensured.
caption: Airplane in-flight information system has much lower criticality than flight control systems, yet both coexist in one "mixed criticality" machine.
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