Q1) Identify general issues of around the requirements for information systems where the system dependability is important, and security is a significant concern.The insulin pump control system needs to maintain a high level of safety and security. low blood sugar levels can lead to critical health risks such as brain malfunctioning, coma and sometimes death. Alternatively, High blood sugar can have adverse long-term effects such eye and kidney damage, therefore it is important to have an accurate reading of the customers sugar levels, otherwise this system will become obsolete. Use of this case study to:-Identify general issues of around the requirements for information systemswhere the system dependability is important, and security is a significantconcern.Discuss general issues of safety and safety-critical systems. Your discussion shouldfocus on, issues of dependability specification and the use of formal specificationtechniques in dependable system engineering method.Formal specification is especially valuable for this system as the computation tocalculate the amount of insulin required is detailed and complex and quite difficult tospecify using natural language. Discuss the specification of the control algorithm canbe used to solve the problem by applying software engineering principles.Based on dependability assurance, use examples from the insulin pump system toillustrate safety arguments and safety cases. You can use the example more generallyon requirements engineering and key principles appropriately for obtaining a solution forsystem development issues. A personal insulin pump systemThis case study discusses the control software for a personal insulin pump, which is used bydiabetics to mimic the function of the pancreas and hence control the level of glucose (sugar) intheir blood. The system hardware is illustrated schematically in the following diagram:Insulin reservoirNeedlePumpClockassemblySensorControllerAlarmDisplay1Display2Power supplyThe level of blood sugar depends on what the system user has eaten, the speed of their digestiveprocesses and the effectiveness of their body in metabolizing blood sugar. Therefore, there is not asimple relationship between a blood sugar measurement and the amount of insulin to be injected.Rather, the control system has to make several measurements and assess the rate of change ofblood sugar. Based on the current level and the rate and direction of change, the incrementalamount of insulin to be injected is computed and injected using the micro-pump in the system. Thisis a safety-critical system as failure to inject the correct amount of insulin can have serious healthconsequences.

dependable are those system which are trustworthy.They must be reliable, available,maintainable,…

Answered: Identify general issues of around the…

Identify general issues of around the requirements for information systems where the system dependability is important, and security is a significant concern.

Principles of Information Systems (MindTap Course List)

12th Edition

ISBN:9781285867168

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter4: Software: Systems And Application Software

Section4.7: Ethical & Societal Issues: Digital Software Systems May Improve Nuclear Power Plant Safety

Problem 2CTQ

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