IS
GIS a science or a tool ?
What is a difference between GIS and geography ?
let
us wait to hear from you before we continue . Actually there is no clear cut
answers to such types of questions, but inspite of
this we must try to answer them depending upon our own conceptual models about
science and tools or geography and GIS . Anyhow we must be patient to answer
confusing questions like the above mentioned one.
According to our teachers in the elementary school
“understanding the question is half of the answer " ,
following this principle we must differentiate first between tools and sciences
, then it is possible to rely on an answer.
The objectives of GIS are to solve
geographic problems, or problems of spatial nature. From the beginning it is
essential to differentiate between GISystems and GISciences. Once again is it a science or a tool? This is
one of the most frustrating questions that every body could face. As I do
believe that there is no clear cut answer to such types of questions, but it is
creditable to spend some time in trying to answer it.
Suppose that you are a GIS user, relying on the most
popular and updated software in your daily works. Of course you will end up
with results according to your daily GIS activities and you may get the fascinating
stuffs by which you can present and print out your final results or layouts to
render your audience speechless. Although presentation itself is one of the
most fundamental steps in GIS , BUT the big question
that you must answer before presenting your works is “ how do you know those
results are accurate ? “
You need the fundamental knowledge that lets you judge
about your results, and if you don’t care your audience do.
I can argue that any one with a desire can learn how to
deal with different software or even programming languages. It is just a matter
of time to follow up the help topics that associates any software and newly
distributed programs. But how this user can benefits more from these soft wares
without knowing their principles. How to deal with errors that may propagate
while playing with those soft wares?
Before going further, it is really worthy to suppose the
opposite. If you are a car driver, did you really need to know how the engine
works while you are driving? Really all the people don’t bother themselves by
the mechanics of cars , they just need their cars
working well. Also other people may ask if any body can drive a car without
learning the principles ? swinging
between such types of questions , it is possible to conclude that there is a
common knowledge that most people must share while performing certain
activities. This assumption can be extended to many fields, e.g. MS Windows’s
users, VB programmers, e-games players and GIS users, etc….
As a result you cannot carry out any activity without
knowing the basic knowledge that tells you how to perform it. Moreover a child
may play with his father’s camera ending up with fascinating photos around him,
but he cannot process the film himself.
Consequently there are common skills that must be shared
by the average GIS users. But this common knowledge is not sufficient to claim
that those users are scientists.
At this point it is better to conclude that there is an
uncertain line that separates between sciences and their tools. And GIS Science
should study the fundamental problems and concerns that evolving from
geographic information “information about somewhere …”
GIS is much connected to the academic
discipline of geography and other disciplines that deal with the earth’s surface,
like geology, surveying, planning and etc...
More obviously it has its own roots from the spatial
analysis techniques belonged to geographers. According to Longley;, Goodchild , Maguire and Rhind , spatial analysis
““ is the process by which we turn raw spatial data into useful spatial information” .
In
the near past, GIS was much constrained by different obstacles, some of them
were, the lack of data and technology.
The advent of GPS and newly remote sensing
satellites smoothed the progress of creating data in a way that is not possible
before.
For those who trying to build GIS infrastructures in
While I am trying to do my dissertation about implementing
GIS techniques in describing the malaria epidemic in
I do confirm that we are not here to blame ourselves,
instead we must inaugurate our GIS data and metadata for a new era , in which the geographic information plays an important
role in this age “ information age”.
From where to start?
Although it is a simple question, it is
meaning less to answer it without the awareness of the governmental and
educational bodies.
The answer is very simple and direct; we can’t establish
any GIS infrastructures without putting GIS principles and techniques into our
educational and training systems practice. It is our mistake to make our kids
feel that geography is an un-treasured discipline. Educational planners must
put geography and GIS techniques in the core syllabus of both elementary and
secondary schools. This of course will be one of the most steps that should be
taken urgently. The other parallel action that should also follow is the
implementation of a planned training schedule to encourage employees and
researcher to deal with GIS technology in a productive way.
Conclusion:
GIS is an evolving tool/science world wide, in a way that
can solve many geographic problems in a way that is not possible before.
Unfortunately in our beloved country
Ø Introducing GIS sciences in elementary and secondary schools.
Ø Reorganizing our old data in a way that it can be accessed easily to the researchers.
Ø Trying to build our own data according to our needs.
Ø An extensive training procedure must followed to collect our data in a reasonable way.
Ø And so many others……..