INTRODUCTION
The interface of the machine is very
important because the user will interact with the interface of the machine went
using it. The design of the interface must be clear and tidy to make the user
can use the machine easily. The student needs to find three difficulties stage
of the interface which is easy, average and hard. The student must improvise
the design the found by design the new interface that can cover the founded interface.
They must measure how far the user enable to understand the interface design
based on certain consideration like the user ability to access the machine, the
alternative way to deliver the instruction and situation. There are three
stages of the machine that chosen by the student for designing a new interface
prototype:
·
The
machine for easy difficulties design is air conditioner switch button.
·
The
machine for average difficulties design is DVD Player.
·
The
machine for hard difficulties design is bank queue ticket machine.
Contents
EASY DIFICULTIES DESIGN
a)
Figure
1 is the simple design of air conditioner switch button that we usually met in
our daily life which has only two buttons; one for switch on and another one is
for switch off.
Figure 1
The advantages of this design are it
looks very simple switch design that easy to understand and use because both of
the button are labelled and help the user to remember the button easier because
it designing in different colour which is green for “ON” button and red for
“OFF” button. Besides that, this design also well known by people nowadays
because the recently met the button everywhere. But it has several advantages
that need to improvise in future. The disadvantages of this design are it does
not have temperature adjustment button that enable the user set it based on
their need. The temperature already set up by the developer that just allows
the user to switch on and off the button switch only. This design needs support
from remote control to adjust the setting of the air conditioner. If the remote
controls are broken the user cannot adjust the temperature of the air
conditioner manually.
b)
Figure
2 shows the new design for air conditioner switch. This design is improvise
from a design in figure 1. It provides the temperature adjustment button that
consists of labelled number for the temperature scale in Celsius format.
Figure 2
The advantages of the design is this
design provide the temperature adjustment button that allow the user set the
temperature they want based on the scale provided. They need to rotate the
button until the triangle sign stop at the temperature number on scale. It also
works as the alternative ways If the air conditioner remote are broken, the
user still can adjust the temperature manually at the switch. So, the air
conditioner still can use like usual. Event it have some changes but the user
still can understand the button because the designing of the on and off button
still use the same button like previous air conditioner switch but in different
arrangement. But the user needs to adjust the temperature manually if the air
conditioner not provides the remote control.
AVERAGE DIFFICULTIES DESIGN
a)
The
normal design of the DVD Player that sold in market. This design currently well
known by public user because most of the DVD Player interface designs are using
same symbols for their button.
Figure 3
The advantages of this design are it is the simple interface that
contains the familiar symbol which is usually used for the DVD player button
that enables the user to understand the function of the button easily and the
attire button can work by press the button provided. So, by understanding the
symbols only, the user can use the button easily. On the other hand, this
design have several weaknesses which is this design not follow the current
technology development that nowadays pen drive device already use as one of the
media storage can be used in every machines which have the USB sub. This design
show that the DVD players just functioning as the DVD Player only that can read
the two of disk which is DVD and CD.
There
are the list of the button existed on the DVD player interface:
Figure 4
b)
The
improvise design for DVD Payer from only one function that shows at figure 3 to
multifunction as shown in figure 5 below.
Figure 5
The new design for DVD Player is the
independent machine that has its own speaker. So, the DVD Player can works
without connecting another devices or machines to play a song without videos.
The DVD Player provides the USB2.0 that allows it to connect with pen drive and
others alternative media storage that sold in market nowadays. It is also works
as MP3 Player and has volume adjustment button for speaker provided. So, it
will help to reduce the power supply at house because the user does not need to
open both television and DVD player if they just want to play the song. It also
provide toggle button to switch the DVD Player to MP3 Player.
|
The
volume adjustment button was added in this design.
 |
Figure 6
HARD DIFICULTIES DESIGN
a) The design of the figure 7 is the interface
of the bank queue ticket machine which is has s touch screen sensor. The user
just need to touch on the screen option button then the numbered ticket will
print for the user. The printed ticket based on the matter they want to do.
Figure 7
This machine is very useful because it
can make the bank matter become smoothly because from the queue number, the
banker can know what the matter that client want to do. It makes the attire
matter more manageable. The interface design of the bank queue ticket machine
in figure 7 is a very simple design with simple instruction. The attire buttons
are touch screen button that designing in several of colour for each of the
button. The button also labelled with the text to make user know what matter
they going to choose. But the interface is not convenient to disable people
because it do not has any sound alert and sound instruction that enable people
who are cannot see or cannot read to use this machine.
The user can recognise the button by
remembering the colour of the button.
b) The new design for the bank queue ticket machine interface. This design
created to improvise the previous design at figure 7 and overcome the previous
design weaknesses.
Figure 8
The design shows in figure 8 has an
audio support to help user to be more understand how to use the machine. It is
also designing with a speaker that is an equipment to make the audio deliver
clearly. The new design also consists of three buttons that allows the user to
choose the language which are Malay, English and Mandarin language. So, the
user can use the machine with their familiar language. It directly can help the
user to understand the instruction well. The uses of the buttons style and
colour are similar with the previous design.
The attire button in the interface are
labelled to enable user know the instruction and function of each button
provided in machine. The additional function provided which is the speaker make
the machine being more convenient and helpful to every people.
REFLECTION
From this assignment the student can
know about the usability of interface design to make the product design
suitable to every people as known as user by giving a clear instruction. The
ability of the machine to works in multifunction is known as pervasive machine.
It also let the student being more creative on improvise the current design to
make it suitable for pervasive machine that have more than one function.
CONCLUSION
The student can classify which
difficulties stage of interface design for machines that they chose. The attire
machines that chosen by the student already approved by the lecturer in class
lesson before they are come out with a new interface design prototype for the
machine chosen. This assignment required student to be more creative on
thinking to designing the good interface prototype for each machine chosen.
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