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Critical systems
This document discusses critical systems and how to build them dependably. It focuses on insulin pumps as an example of a critical system. Critical systems must meet requirements for availability, reliability, safety and security. Their development process involves requirements analysis, system and program design, implementation with unit and system testing, delivery, and maintenance. Dependability requirements for an insulin pump specify that it must be available to deliver insulin as needed, reliably deliver the correct insulin dose based on blood sugar levels, and ensure excessive insulin doses are never delivered, as that could be life-threatening.
Critical systems
- 1. CRITICAL SYSTEMS A research preparedby: Eng. Sonia Alkish Software Engineering
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- 4. How to buildCritical Systems? Requirements analysis and definitionSystem design Program design program implementation unit testing system testingsystem delivery maintenance Software Engineering
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- 7. Insulin pump organization SoftwareEngineering
- 8. Insulin pump data-flow SoftwareEngineering
- 9. Dependability requirements Thesystem shall be available to deliver insulin when required to do so. The system shall perform reliability and deliver the correct amount of insulin to counteract the current level of blood sugar. The essential safety requirement is that excessive doses of insulin should never be delivered as this is potentially life threatening. Software Engineering