Table 2.

Adopted information quality criteria and measures for the social media context [36, 52]

criteria	Measure	Description
Intrinsic information quality	Completeness	Extent to which the information is not missing and is of sufficient breadth and depth
	Originality	How much information is not copied from other sources
	Objectivity	Extent to which information is unbiased and unprejudiced
	Novelty	If the information is innovative
	Accuracy	The degree to which data are correct, reliable, free of errors, and current
	Verifiability	The degree to which information can be checked for correctness
	Reliability	Extent to which information is correct and reliable
Contextual information quality	Amount of data	Extent to which the quality or amount of data is appropriate
	Relevancy	Extent to which information is applicable for the task in hand
	Credibility	Believability or the characteristic that makes people believe and trust someone or something
	User feedback	Users provide either an implicit or explicit quality evaluation of the content.
	Timeliness	Extent to which information is sufficiently up-to-date for the task in hand
	Understandability	Extent to which data are clear, without ambiguity, and easily comprehended
	Value added	Extent to which information is beneficial and provides advantages from its use
Representational information quality	Conciseness	Extent to which information presentation matches the information and is compact, represented without being overwhelming, has granularity, and appropriateness
	Consistency	The same format and compatible with previous data
	Accessibility	Extent to which information is available or easily and quickly retrievable