ICS 101- INFORMATION
COMMUNICATION AND SOCIETY (2 CREDIT COURSE- COMPULSORY)
WEEK 1
OVERVIEW
This course will be examining
data, types of data, information, uses of information, value of
information, information systems, different types of information
systems, channels of communicating information, highlighting new
communication technologies and its impact on the interaction of
individuals and groups in a particular information related
environment.
BACKGOUND TO THE COURSE
What is information science?
Information Science is
interdisciplinary in nature. It is primarily concerned with the
collection, analysis, classification, manipulation, storage,
retrieval and dissemination of information.
Information Science is often
(mistakenly) considered as branch of Computer Science. However, it is
a broad interdisciplinary field incorporating diverse field such as
archival science, Cognitive science, Commerce, Law, Management,
Philosophy, Mathematics, Public policy and the social sciences.
Therefore, practitioners
within this field study the application and use of information in
organizations along with the interaction between people in a
particular information related environment with the aim of creating,
replacing, improving or understanding information systems.
In a nutshell, Information
Science consists of having the knowledge and understanding on how to
collect, classify, manipulate, store, retrieve and disseminate any
type of information.
Information professionals are
concerned with different ways of handling data/ information from the
stage of collection, packaging/ processing (arranging, summarizing,
translating and finally dissemination.
What is Data
Data is a collection of facts,
figures and symbols such as values or measurement. It can be in
numbers, words, measurement, observations or even just description of
things. Data can be collected through interviews, direct observation
or surveys. A set of data may or may not be meaningful depending on
the usefulness to the user.
Data are what an individual
can perceive with any of the five senses, and from which information
can be generated. Data can be communicated by other people,
documents, computer or telecommunication systems (internet). Example
of data is the list containing the jamb scores of students.
Data and information are two
closely interrelated concepts that people unconsciously use
interchangeably; but in the actual sense they are different from each
other.
Tamiyu (2003) defined data as
communication symbols that are used to describe an entity.
Communication symbols become data when they are used to express an
idea or describe a particular entity. This means that data can be
written, spoken or implied by non-verbal actions.
For instance the symbols
“large” and “small” can be used to describe the size of ICS
101 class. In this instance, the symbols are the data being used to
describe the size of the class.
WHAT IS INFORMATION
Information is meaningful data
in the sense that it has to be processed, translated, summarized, and
arranged by the user of the information.
DIFFERENT DEFINITIONS OF
INFORMATION
Tiamiyu (2003) defined
information from three main perspectives:
- Sender’s definition of information
- Receiver’s definition of information
- Average definition of information
The sender definition of
information is the understanding or meaning intended by the sender of
the data.
The receiver’s definition of
information is the understanding or meaning derived or inferred by
the recipient of the data.
In the process of
communicating information, for instance, MR. (X) might wants to
communicate an expression “short man” to Mr. (Y) with a symbol.
This type of information might be perceived accurately or differently
depending on some factors:
- The ability of the sender to accurately perceive the entity/data/ symbol.
- Appropriateness of the data to describe the particular entity.
- Ability of the recipient to infer accurately from the data intended.
The difference between
information intended and information inferred is referred to as
“Noise”.
Noise tends to distort the information conveyed or inferred thereby
reducing the effectiveness of communication.
The average definition of
information
This is the average of the
different meaning that senders and recipients in a particular
community infer from a given set of data. For instance three
individuals in a community might interpret the data “short man”
differently depending on their level of perception. However, the
average interpretation of the data “short man” would be taken as
the information conveyed by the data in that community.
Michael Buklland (2001) also
defined information in three different ways: These three definitions
are quite overlapping.
Information –as-thing:
This is used to
denote objects that are attributive, informative and instructive in
nature such as data, documents, text etc. They have the quality of
imparting knowledge or communicating information.
Information- as-
process:
It is the act of informing, communicating of knowledge, news, facts
or occurrence. It is the action of telling or fact of being told
something.
Information as
knowledge: This
is used to denote that which is perceived in information- as- process
i.e the knowledge communicated concerning some particular facts,
news, subject, and events. Information as knowledge has the
capability of reducing uncertainty. Another key characteristic of
“Information as knowledge” is that it is intangible. One cannot
touch or measure it in any direct way. Knowledge, belief and opinion
are personal, subjective and conceptual; therefore, to communicate
knowledge, it has to be expressed, described or represented in some
physical way as a signal or text. Any such expression, description or
representation would be information- as thing.
MISINFORMATION:
According to
Wikipedia, misinformation is false or inaccurate information that is
spread unintentionally, which can be misleading. Misinformation
arises when there is not enough evidence, facts or figures concerning
a particular situation, therefore, leading to generalization.
E.g. ICS 101 lecturer will
not be coming for classes till next week.
DISINFORMATION:
This is deliberately giving false information that is meant to
mislead either as a rumors or propaganda.
E.g. ICS 101 test has been
postponed till further notice.
WHAT IS KNOWLEDGE
Knowledge can be defined in
the following ways according to Oxford Dictionary
- Expertise and skills acquired by a person through experience or education- theoretical and practical understanding of a subject for a specific purpose.
- What is known in a particular field or in total; facts and information.
- Awareness or familiarity gained by experience of a fact or situation
Knowledge
is a subset of information. It is a subset that has been extracted,
filtered, formatted in a special way. More specifically, the
information we call knowledge is information that had been subjected
to, and passed test of validation.
For instance scientific knowledge (hypotheses and theories) validated
by the rules and test applied by the scientific community
Knowledge acquisition
therefore, involves complex cognitive processes: perception,
learning, communication, association and reasoning.
CHARACTERISTICS OF
INFORMATION
- Accuracy
- Timeliness
- Currency
- Completeness
- Relevance
Week 2:
USES OF INFORMATION IN
AN ORGANIZATION
There are 6 main uses of
information in organizations.
Communication
Monitoring and control
Decision-making
Measuring performance
+-Identifying new business opportunities
Creating awareness
Communication
Monitoring and control
Decision-making
Measuring performance
+-Identifying new business opportunities
Creating awareness
Communication
Effective communication in an
organization is enhanced through the use of information. Information
can be transferred through various channels such as memos, reports,
correspondences intranet, databases, etc from the boss to his
subordinates, from one manager to the other, from one employee to the
other. Information is needed to communicate the day to day events and
happenings in the organization on order to take appropriate
decisions.
Monitoring and control
Information can be used to
monitor and control performance. This can be done
by comparing actual
performance against its predicted (budgeted) performance. Then they
will act upon it. For instance it can be used in monitoring the sales
level and being able to replace stock as at when due. Also the
performance of an organization can be monitored through the financial
report.
Decision-making
When managers are ready to
make tough choices (decisions) they need good, accurate and
up-to-date information. If they act without relevant information it
could lead to disaster, and failure. It helps to reduce uncertainty.
Measuring performance
Organizations can compare
their sales figures with their competitors or indeed against their
own previous years. This type of information can be used to improve
performance of the organization; thereby, contributing meaningfully
to the organization’s bottom line.
Identifying new business
opportunities
Organizations are always on
the lookout for gaps in the market. They fill these gaps with
suitable products or services to satisfy customer needs. These gaps
can be identified through observations, market surveys, and
interviews for relevant information that would improve the business
and give it a competitive edge over others.
Create Awareness:
Information can be used to enlighten people on your products and
services. This awareness can be created via posters, fliers, placard,
signboards or bill boards, pamphlets etc.
Gain knowledge:
Relevant Information can enhance the knowledge base on a particular
subject/field, product or services. In an organization, information
can increase your knowledge of a particular product thereby adding
value to you and the profitability of the organization.
VALUE OF INFORMATION
There is actually no unit of
measurement of information.
The value of
information depends on its usefulness to the user. Therefore, it is a
function of its uses.
CHARACTERISTICS OF THE
VALUE OF INFORMATION
Subjectivity:
The value given to any kind of information will differ depending on
the usefulness to the user and the level of perception. The value
attributed to a piece of information by Mr. A will differ from the
interpretation of that same information by Mr. B. This means the
value of information is subjective in nature.
Situation dependent:
The relevance of a piece of information is situation dependant. i.e
what may be information today may not be information tomorrow. This
means that the value of information could diminish with time. E.g.
the information about the availability of fuel in a particular place
OR information from the news (print media).
Positive:
The information (good or bad) that will enable you take necessary
decision has a positive value. This means that the information is
beneficial to the user. E.g. Bursary department is giving out loans
to students OR the death of a known person.
Negative: Negative
information are detrimental in nature. This information are false and
can mislead. Therefore the value of such information is negative E.g.
All the students of ICS 101 class are involved in the protest against
the Vice Chancellor.
Zero: Zero
information means that the information at any point in time is of no
use to the person. The person can afford to disregard the piece of
information. This means that the value of the information is zero.
QUANTITATIVE WAYS OF
MEASURING THE VALUE OF INFORMATION
- Cost Benefit Analysis- A cost benefit analysis enables one to weigh the cost of acquiring a piece of information to the benefit derived from the use of that information. Assuming you obtained a piece of information from the front page of Guardian Newspaper, the cost is N40 paid for the purchase of the newspaper. On the other hand, if the information is free, the cost of acquiring the information is the transport fare used to obtain information from the source; and if the person is mobile, the cost will be the amount you used to fuel your car. Aside the cost, you weigh the benefit derived from the use of the information.
- Cost of not having the information: This is the cost incurred for not having a piece of information at the right time. For instance, assuming you have a conference to attend at Abuja, on getting there you were told that the conference had been postponed; and a letter was sent to you to that effect but had not been received. The cost of that piece of information that was sent to you, but was not received is what it cost you to travel to and fro to Abuja. The value of that piece of information is the cost incurred for not having the information at the right time.
- Willingness to Pay (Users Approach): The value you place on a piece of information is determined by your willingness to pay for that piece of information. For instance, there is scarcity of fuel, and somebody has information of where you can purchase fuel and has asked you to pay for the information. The amount you pay to that person is determined by the value you place on that piece of information.
- Producer’s determination (Demand Approach): If there is high demand for a piece of information, it means that the value of that information is high, therefore the producer determining the cost of acquiring that information. E.g. rendering an information service that is of high demand to the public.
TYPES OF DATA
Data can be classified based
on its usage to the user. These are divided into two types:
- Primary data- This is data observed or collected directly by firsthand experience by the researcher using methods such as interviews and questionnaire. The key point here is that the data you collect is unique to you and your research and until you publish no one has access to it.
- Secondary data- This is data that had been collected and collated by somebody other than the researcher for some reasons not related to the current study. It can be used to get different perspectives on the current study, to supplement or compare the work with others. It is data that is neither collected directly by the user nor specifically for the user. It may be available from internal sources or collected and published by another organization. Examples of secondary data include: published reports, Government Statistics, Scientific and technical reports, financial statements, Bank’s reports, Books, Magazine, Websites, Television, Radio, Newspaper, Films, Journals and Publications. These sources are in exhaustible.
Advantages
- It is cheap and inexpensive.
- It is easily accessible.
- It is readily available.
- It saves time and effort.
- It provides a basis for comparison.
Disadvantages
- Credibility of the source of publication or report.
- The data might be outdated i.e it may not be relevant to your scope of study.
- The researcher has no control over the quality of the data collected.
- Authenticity of the data collection measures is questionable.
Data can further be divided
into three main types
- Textual data e.g The boy has small stature
- Numerical data e.g 45.2 %
- Pictorial data e.g bar chart, histograms, tables etc
QUALITATIVE DATA
Qualitative data includes
virtually any information that can be captured that is not numerical
in nature. It is descriptive information. It describes something.
Qualitative data can be collected via:
- Indepth interviews
- Direct observation
- Written documents
The below data describes a
little girl.
- She is beautiful
- She is fair complexioned
- She has a long hair
QUANTITATIVE DATA
Quantitative data is used to
describe a type of data that can be counted or expressed numerically.
This type of data is often collected in experiments, manipulated and
statistically analyzed. It can be represented virtually in graphs,
histograms, tables and charts. Examples:
- The total number of students attending ICS 101 is 150
- The footballers’ heights are expected to be 6ft 5inches each to participate in the match.
DIFFERENCES BETWEEN
QUALITATIVE AND QUANTITATIVE DATA
QUALITATIVE
DATA
|
QUANTITATIVE
DATA
|
Deals
with description
|
Deals
with numbers
|
Data
can be observed but not measured
|
Data
can be measured
|
Data
can be expressed in colours, textures, appearance etc.
|
Data
can be expressed in length, height, area, volume, weight,
speedtime, temperature, humidity, soundlevels, cost ages etc.
|
Qualitative-
Quality
|
Quantitative-
Quantity
|
TYPES OF INFORMATION
- Mode of transmission of information
Oral –verbal (One to one
relationship) e.g. lecturing
Written- textbooks, magazine,
newspaper
Gestures-signals, spoken or
non-verbal cues
- Organizational information
-Strategic level information
(Top management)
-Tactical level information
(Middle level managers)
Operational level information
(Bottom level managers)
- Form of Storage
-Numeric (conveying
information using numbers) e.g. weather forecast, exchange rate,
census exercise etc)
-Textual (conveying
information using natural language) e.g. It will rain tomorrow.
-Image (Inferring information
from an image) e.g. sign language, signatures, tribal marks etc.
Sound/Audio e.g. national
anthem, whistle, siren, alarm (fire or clock).
- Hard versus soft information- There is a thin line of difference between soft and hard information. What is hard today may be soft tomorrow. It is situation dependent
Hard information-
This type of information is technical in nature. It cannot be easily
comprehended by a layman that is not in a particular field. E.g.
research reports, journals, feasibility studies etc.
Soft information:
This type of information can easily be comprehended by the users. It
is not technical in nature. E.g. newspaper, magazines, textbooks etc.
SOURCES OF INFORMATION
What is a source?
A source is the origin of
something. It can be defined as a place, person or thing from which
something can be obtained. In other words, an information source can
be anything that conveys information or knowledge to somebody.
Examples of information sources include: people, documents, pictures,
organizations, computer systems, information systems, information
centers, online databases, internet etc.
The sources of information can
be grouped into three:
-Primary
sources
-Secondary sources
-Tertiary sources
Primary sources of
information
Primary sources provide first
hand information or direct evidence concerning a topic under
investigation. They are created by the witness or recorder who
experienced the event or conditions being documented.
Primary sources are original
materials on which other research is based. These sources may appear
in physical print or electronic format. They report a discovery,
present original thinking or share new information. Examples include
-Artifacts (e.g. coins, plants
specimen, furniture, tools, clothings)
-Audio recordings (radio
programs)
-Dairies, websites survey
research, market survey, public opinion polls
-Internet communication
-Newspaper articles
-Patents
-proceedings of meeting
-Records of organization,
government agencies, annual report, treaty, constitution etc
Secondary sources of
information
Secondary sources are less
easily defined than primary sources. They are interpretation and
evaluation of primary sources. Secondary sources are not evidence,
but rather commentary on discussion of evidence. The definition of a
secondary source may vary depending on the discipline or area of
interest. Examples include:
-Bibliographies
-Commentaries
-Dictionaries, Encyclopedias
-Histories
-Journal articles
-Magazines and newspaper
-Textbooks
Website
Tertiary Sources of
information
Tertiary sources consist of
information which is a distillation and collection of primary and
secondary sources. Examples include:
-Almanacs
-Bibliographies (considered
secondary)
-Chronologies
-Dictionaries and Encyclopedia
(considered secondary)
-Directories
-Indexes, abstracts (They are
used to locate primary and secondary sources)
-manual
-Textbooks (considered
secondary)
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