Quality of Information

name the 6 factors affecting quality of information

1) relevance 2) Accuracy 3) Level of detail 4) Age 5) Presentation 6) Completeness

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Describe "Accuracy"

If the data is inaccurate then the infromation produced will also be inaccurate

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give an Example of how inaccurate data occurs with (direct data) "Questionnaires"

1) Questionnaires may be poorly worded so users may misunderstand them 2) Open questions may be used where closed questions were needed

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Example of how inaccurate data occurs with (Human Error)

1) if humans are collecting data manually they might make a mistake 2) they may make a "transcription error" when entering correctly collected data into the system

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Describe "Relevance"

1) in order for information to be usefull it must be relevant to you

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Example of how "Irrelevan"t information affects information in a (School) situation

1) a student has a lot to learn for their AS exam but the teacher teaches them information which is irrelevant to the specification so the information is irrelevant to whats needed inroder to pass the exam

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Example of how "Irrelevant" information affects information in a (Doctors Appointment) situation

1) if the receptionist told you a different time slot to what was really available then the information would be irrelevant to you

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Desribe "Age"

1) inorder to be usefull the information needs to be up-to-date

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Example of how "out-dated" information effects information in a (Exams) situation

1) when preparing for an exam the student uses 5 year old exam papers however the style of the questions may be outdated so not being of any use of the student

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Decribe "completeness"

1) Inorder for information to be usefull it needs to be complete

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Example of how "In-completeness" effects information in a (Exams) situation

1) for instance if a student is suppose to mark their practice paper over the study leave period but the teacher only gave them the second half of the model answers then it would be of no use to them

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Decribe "Presentation"

1) information which is presented in a disorganised manner is hard to understand

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Example of how "Presentation" effects information to (buying a house)

1) if your parents were presented a written decription of a house rather than a photograph then the presentation may effect their final decision

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Decribe "Level of detail"

1) for information to be usefull you will need the right amount of information

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Example of how "level of detail" effects information to (baking a cake)

1) too much detail - if every singe kind of flour availble is listed it could affect the user 2) too little detail - telling you, you need flour but not the right amount could affect the outcome of the cake

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Quality of Information

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