When a new system is being developed analysis takes place. One method of researching the current system is interviewing. List three other methods of researching the current system. Describe two drawbacks of using interviews. [ 1 2

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THEORY

2017

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Tick (✓) whether the following descriptions of analysing a system refer to Interviews, Observation or Questionnaires. Questionnaires (✓) Observation (✓) Interviews (✓) Description This method gives a more reliable overview of the whole system. This is more time-consuming than the other methods. Questions on this method cannot be expanded upon when being asked. With this method the worker cannot remain anonymous.

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THEORY

2021

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A river authority is concerned about levels of pollution in a major river. The quality of the water in the river needs to be monitored using sensors. Name three sensors that could be used to measure the pollution in the river. Discuss the advantages and disadvantages of using computers to measure the pollution in the river rather than humans measuring the pollution. 1 16

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THEORY

2022

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A system can be analysed using different methods. Discuss the advantages and disadvantages of analysing a system by interviewing staff rather than using questionnaires. [ 1 16

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THEORY

2022

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Different methods can be used to analyse a system. Discuss the benefits and drawbacks of analysing a system by observing staff rather than looking at the current systems documentation.

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THEORY

2022

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For Examiner's Use 16 When a new system is implemented, documentation is provided with it. Explain why two different types of documentation are produced.

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THEORY

2010

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A company has decided to introduce a new computer system. It has employed a systems analyst to oversee this. Her first task is to research the current system. Identify three methods of carrying out this research other than by observation. For each method, give an advantage compared to the other methods. Method 1 Advantage Method 2 Advantage Method 3 Advantage The new system will be designed after the current system is analysed. Identify three items which will be part of the design. Once the system is implemented, the systems analyst will provide documentation for the new system. Explain why two types of documentation are needed.

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THEORY

2015

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A company has decided to update its current computer system. As part of the analysis, name two methods they could use to research their existing system. Give one advantage and one disadvantage of each. Method 1 Advantage Disadvantage Method 2 Advantage Disadvantage

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THEORY

2016

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The manager of a company is planning to create a computerised system and has asked a systems analyst to research the current system. The systems analyst could do this by using a number of different methods, but has chosen to create and send out a questionnaire to members of the company. Discuss the benefits and drawbacks of sending out questionnaires to members of the company. The system has been created. As the data is entered into the system it is verified. Give two methods of verification. Explain why data still needs to be validated even though it has been verified.

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THEORY

2020

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WBA is a company that makes little profit. Its newly commissioned ICT system is ready to be implemented. It needs the new system to be in use as soon as possible. Describe the advantages and disadvantages of using parallel running compared with direct changeover as a method of implementing the system. Choose which of these two methods of implementation WBA should use, giving reasons for your choice.

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THEORY

2015

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