An application system normally consists of a user interface, business logic and a database of some sort.
The user interface is something that you can see and
something that is used to interact with the computer. It could consist of set of screens, web pages
or reports. Sometimes the user interface
is an input device such as a bar code reader or a voice recognition
device. Some application systems don't
have non-visual interfaces. These
application systems exchange data electronically with other applications via a
network.
There are many different types of computer systems. Some application systems are small,
stand-alone systems that run on a desktop computer that are used by just one
individual. Other application systems
are very large and complex and can be used by hundreds of people in different
geographic locations. Some countries can create a system like this that can link to their military bases
Some application systems are centralized on a mainframe
computer. Others are distributed across
multiple computers. These
“client-server” applications have software components running on client
machines (e.g. presentation logic) and other components (e.g. data validation
rules, data management functionality) running on one or more server machines.
Some application systems are designed for “self-service” by
customers. These Internet and IVR
applications (Interactive Voice Recognition Systems) guide infrequent or
untrained users through transactions step-by-step.If such a system is design in out local supper market here giant one can buy by him/ herself
However, we are looking at the ease with which these systems are built and which one provide the best route for one to carry out transactions and operations. In this like, an application system that is design that even a young person or a person with basic knowledge of computer can use it conveniently is a better one.
To remind ourselves once more of what an application program is
DEFINITION/EXAMPLES
An application program (sometimes shortened to application)
is any program designed to perform a specific function directly for the user
or, in some cases, for another application program. Examples of application
programs include word processors; database programs; Web browsers; development
tools; drawing, paint, and image editing programs; and communication programs.
Application programs use the services of the computer's operating system and
other supporting programs. The formal requests for services and means of
communicating with other programs that a programmer uses in writing an
application program is called the application program interface (API).
Therefor let us take a critical look at these systems we are conversant of and use in everyday life situations.Lets take the case of web browsers.
We have some many browsers that we use like Google chrome, flock, internet explorer, Mozilla Firefox, etc.
Having been working with these browsers, i can say from my perspective that Google chrome has the best user application system for the following reasons:
- It offers a great dear of links on the task bar that just need just a click of the mouse and you will be able to assess your desired link
- It provides easy assess to opening new tabs as it is easily seen by any body using this browser even if it is your first time
- It provide a better means to follow the activities of your friend on social networks like Facebook without necessarily going online
- It provide notifications in case of any errors
- Icons on the task bar are very eligible and without any ambiguity
- Lastly, it is fast comparatively and takes less time to execute a search .
- http://searchsoftwarequality.techtarget.com/definition/application-program
- http://www.webopedia.com/TERM/A/application.html
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