EXAMPLES Attributes of Information. Overview Information Systems help companies achieve their goals. How do they do it? 1. By processing raw data into.

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Presentation transcript:

EXAMPLES Attributes of Information

Overview Information Systems help companies achieve their goals. How do they do it? 1. By processing raw data into information 2. IS can add value to information by enhancing the attributes (11 of them).

Usability Delivery Relevant Simple Flexible Economical Timely Accessible Secure 11 Attributes of Information Quality Accurate Verifiable Complete Reliable

Information Spectrum Data  processing  Information Information  intelligence  Knowledge Knowledge  experience  Wisdom

Often confused My calculator always does multiplication correctly in never makes an error. My calculator is __________  What attribute is described? However, I dropped it in the sink and sometimes it won’t turn on. My calculation is not _________  What attribute is described?

Accuracy vs. Reliability Accuracy – true, free from error  Precision – refers to the level of accuracy  1/3 = is accurate  1/3 = is more precise Reliability – in IS, it refers to how often information is accurate.  An information source could be error free but might not work all the time.

Weather Forecasting Are weather-persons  reliable,  accurate,  both, or  neither?

Accurate vs. Reliable Weatherman A can predict tomorrows temperature to the exact degree  but only 40% of the time.  other 60% he cannot interpret the raw data Weatherman B can predict tomorrows temperature but it may be off by 5 degrees  But, his system works 95% of the time Who is more accurate? Who is more reliable?

TPS – transaction processing system I put the TPS reports on the website so everyone can access them.  This makes the TPS reports more ________. The TPS reports are PDF files which cannot be modifed easily, so we also provide the TPS data in standard XML format which can be converted to any other format.  The XML format is more ___________.

Some attributes are enemies! My student evaluation report includes 23 answers from all 31 students. Its hard for me to tell if my evaluations are good or bad, but at least the data is __________. The student evaluation report includes only my average score, which is very _______ and easy to interpret, but I’d like all the data.

Examples Stories Water Testing GE PCB Dredging 1930’s stock tips

Fun Article world-unveils-plans-to-reduce-wait-time/