List four types of systems that may require software safety cases, explaining why safety cases are required.

What will be an ideal response?


Safety cases would normally be required for any system that needs to be certified
by a regulator before it is used e.g.:
1. Systems used to control equipment in the nuclear industry where there is a
possibility of the release of radioactivity.
2. Air traffic control software
3. Signalling and control systems in the railway industry.
4. Software for critical aircraft functions such as flight control systems.

Computer Science & Information Technology

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Fill in the blank(s) with the appropriate word(s).

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In Access, and unlike in Excel, mathematical calculations are applied to ________ of data

Fill in the blank(s) with correct word

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Match each item with a statement below.

A. The chart type that compares values across categories over time. B. The chart type that shows the relationship between two kinds of related data. C. The chart type that shows the relative importance of values over a period of time. D. The chart type that describes the relationships of parts to the whole. E. The chart type that shows trends by category over time.

Computer Science & Information Technology

When you double-click it, what program is used to open an Excel worksheet you exported as an HTML file?

A. in your default browser B. in the cloud C. off-line D. on a social networking site

Computer Science & Information Technology