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Information Systems
Exam 1: Chapter 3
| Question | Answer |
|---|---|
| Information Evaluation | the systematic determination of the merit and worth of information |
| Good Quality Information Improves... | -productivity -regulatory compliance -high-quality decision making |
| Bad Information can Cause... | -legal issues -reputation to be harmed -missed opportunities -lost revenue |
| Information Overload | being faced with more information than one can effectively process |
| What is bad about information overload? | it reduces productivity, increases stress, and can lead to physical health problems |
| Why to managers value information? | to improve decision making, to justify decisions, to verify previously acquired information, to "play it safe" by making sure they don't miss any relevant info, belief that info may be useful later |
| Withdrawal | disconnecting from sources of information (ex. not checking email, turning off TV) |
| Filtering | knowing what information we need and what information merits attention and use |
| "Garbage in garbage out" | bad information can lead to bad decisions |
| Dimensions of Information Quality | Intrinsic, Contextual, Representational, and Accessibility Quality |
| Intrinsic Quality | important dimensions of quality regardless of the context or how the information is represented |
| Contextual Quality | dimensions that may be viewed differently depending on the task at hand |
| Representational Quality | how the information is provided to the user |
| Accessibility Quality | whether authorized users can easily access the information |
| Intrinsic Dimension | the extent to which info is accurate, believable, objective, understandable, and consistent |
| Contextual Dimension | the extent to which info is relevant, timely, complete, and current |
| What questions should you ask when you evaluate information? | Is the information useful? Is the information believable? |
| Relevance | degree to which the information is pertinent to the task at hand |
| Appropriateness | degree to which the info is suitable for your purpose |
| Currency | degree to which the info is up to date |
| What do you look for when evaluating usefulness of info? | Relevance Appropriateness Currency |
| Credibility | whether the source of info can be trusted |
| Objectivity | whether the subject of info appears unbiased |
| Supported Claim | whether the information provided is supported and whether this support is of good quality |
| Comprehensiveness | depth and breadth of info |
| Depth | the level of detail provided |
| Breadth | whether all aspects of a topic are covered |
| What do you look for when evaluating information believability? | Credibility Objectivity Supported Claim Comprehensiveness |
Created by:
cnwall