INFORMATION - WHAT IS INFORMATION? - ATTRIBUTES OF INFORMATION
Transcript
1. INFORMATION- WHAT IS INFORMATION?- ATTRIBUTES OF
INFORMATION
2. WHAT IS INFORMATION?
3. DEFINITION Ordered sequence of symbols that can be
interpreted as a message. Information can be recorded as signs, or
transmitted as signals. Information is any kind of event that
affects the state of a dynamic system.
4. DATA OR INFORMATION??? PROCESSING DECISION MAKINGDATA
INFORMATION ACTION
5. Data Management Without data and the ability to process it,
an organization could not successfully complete most business
activities Data consists of raw facts For data to be transformed
into useful information, it must first be organized in a meaningful
way
6. The Hierarchy of Data Bit (a binary digit): a circuit that
is either on or off Byte: eight bits Character: basic building
block of information Each byte represents a character Can be an
uppercase letter, lowercase letter, numeric digit, or special
symbol Field: typically a name, number, or combination of
characters that describes an aspect of a business object or
activity Record: a collection of related data fields File: a
collection of related records Database: a collection of integrated
and related files.
7. BASIC CONCEPTS Data: raw facts. E.g. Alphanumeric, image,
audio, and video Information: collection of facts organized in a
way that can have additional value.
8. Value of Information??It is directly linked to how it helps
decisionmakers achieve their organizations goalsand can be
measured:- in time required to make a decision- Increased profits
to the company
9. Information Spectrum Data processing Information Information
intelligence Knowledge Knowledge experience Wisdom
10. ACTIVITY 1In five minutes, draw as many signs,symbols and
signals as you remember.
11. Attributes ofInformation
12. 11 Attributes of Information Usability Delivery Relevant
Timely Simple Accessible Flexible Secure Economical Quality
Accurate Verifiable Complete Reliable
13. Check the attributedescription HERE
14. ACTIVITY 2Can you guess??..What attributes are described?
My calculator always does multiplication correctly in never makes
an error. My calculator is __________ . However, I dropped it in
the sink and sometimes it doesnt turn on. So, my calculation is not
_________
15. Accuracy vs. Reliability Accuracy true, free from error
Precision refers to the level of accuracy 1/3 = 1.333 is accurate
1/3 = 1.333333 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.
16. Weather ForecastingWhat do you think?Are weather-people: A.
reliable, B. accurate, C. both, or D. neither?
17. Accurate vs. Reliable 1. Weatherman A 2. Weatherman B can
predict tomorrows can predict tomorrows temperature to the
temperature but it may exact degree (C) be off by 5 degrees - but
only 40% of the - His system works 95% of time, the other 60% he
the time cannot interpret the raw* data. Who is more accurate? Who
is more reliable?*Raw: Not processed
18. Iput the reports on the website so everyone can access
them. This makes the reports more ________. Thereports are PDF
files which cannot be modified easily, so we also provide the data
in standard XML format which can be converted to any other format.
The XML format is more ___________.
19. Teacher:My student evaluation report includes 23 answers
from all 31 students. Its hard for me to tell if my students are
good or bad, because the data is not__________. The student
evaluation report includes only my average score, which is very
_______ and easy to interpret, but Id like all the data.
20. THIS IS THE END OF THIS MODULE. INFORMATION Go to next
module: Information Systems