Identify the characteristics of useful information : (i) Accuracy (ii) Awareness (iii) Adequacy (iv) Dubious Codes :
(i) and (iii) are correct
Useful information is judged by quality attributes such as accuracy, completeness or adequacy, relevance, timeliness, reliability and accessibility, which together make it fit for decision making.
Accuracy means the information is free from error and correctly represents facts, and adequacy means it is sufficient in quantity and detail for the purpose, so both are characteristics of useful information.
Awareness is a state of the user, who knows that some information exists; it is not an attribute of the information itself.
Dubious information is doubtful and unreliable, which is the opposite of the reliability expected of useful information, so any code including it fails.
So the characteristics of useful information in the list are accuracy and adequacy.
Hence, (i) and (iii) are correct.
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