Design and Technology Stage 6 Syllabus
Outcomes |
Students learn
about: |
Students learn to: |
|
P 6.2 evaluates and uses computer-based technologies in designing and producing |
· Computer-based technologies and their application including: - modelling - research - simulation and graphics - communication - presentation |
· Discriminate in the choice and use of computer-based technologies to develop, communicate and present design ideas and processes. |
The availability of
high-speed computers has resulted in a widespread use of computer models in the
analysis and prediction of systems for research as well as for practical design
and management purposes. Computer software can be designed to model a wide
range of systems. A simple spreadsheet can be designed and created to forecast
changes resulting from different data input. This can be looked upon as a form
of modelling.
Software can be designed to model the behaviour of a particular system. An example may be analysing the response of an environmentally friendly house to varying conditions. The description of the system is simply entered into a computer that models the behaviour of the house under various conditions defined according to the purpose of the research assignment. This method allows a designer to view a system under complex conditions and gain a greater understanding of any problems that may be encountered.
Computer based
technologies can be regularly used in researching design and processing ideas.
Accessing the World Wide Web is probably one of the most common techniques used
today by students for research purposes. However we should be aware of
copyright laws, ethical responsibilities and the integrity of the information
being accessed on the Internet. It is important to understand the laws of copying
text or graphics from Internet sites and whether it is ethical to be using this
information (Copyright laws should also be adhered to when scanning text or
graphics for publication). It is also important to have an understanding of who
published the information contained in the site. There is no real obligation
for the publisher to be truthful and factual in their publications.
Databases and spreadsheets
are useful applications for collating and presenting research data in various
forms. Tables, reports and graphs are some of the methods available to present
your findings. These applications allow students the opportunity to manipulate
data appropriately for further investigation.
Computer simulations are
used to study the dynamic behaviour of objects or systems in response to
conditions that cannot be easily or safely applied in real life.
The simpler simulations
performed by personal computers consist mainly of business models. This
includes spreadsheet, financial, and statistical software programs that are
used in business analysis and planning. More advanced simulations, such as
those that emulate weather patterns are usually performed on more powerful
workstations or on mainframe computers. Other examples of computer simulations
include estimating the competitive responses of companies in a particular
market and reproducing the movement and flight of space vehicles.
Simulation software can be designed and customised to the needs of the user to represent real life situations. Students can design their own simulation software or they can use existing commercial simulations to gain a further understanding of responses of a system to different variables.
Computer graphics
applications have found widespread use in product design and manufacturing.
Computer-aided design systems have replaced drafting boards in the design of
many products ranging from landscape design to automotive bodies and aircraft
hulls to electrical and electronic devices. Computer graphics are very evident
in the entertainment industry, which uses them to design and create the
animations of video games and the special effects in motion pictures.
The use of digital cameras
or scanning related graphics have enabled students to present design ideas or
trace the development and realisation of design solutions. The ease of editing
graphics, through available software is another benefit of this technology. These
computer-based technologies have become valuable resources for students in the
design process.
Computers and the Internet
have enabled us to communicate in a variety of ways and have allowed students
the opportunity to contact others worldwide. We can peruse electronic bulletin
boards to gather useful information or contact professionals direct through
e-mail. Students can log into a chat site and have informal discussions on
topics relevant to their needs. Again it is important to consider the integrity
of any information gathered.
Wide ranges of software
applications are available that allow us to present our design ideas. The communication
of ideas through mind maps, flow charts, tables, sketches, drawings or reports
can all be communicated effectively through computer based technologies.
Presentation of design
ideas through multi-media software enables the information to be presented in a
manner that allows the user to control, combine, and manipulate different types
of media, such as text, sound, video, computer graphics, and animation. This
form of presentation appeals to most of the human senses and can make the
communication of ideas more effective.
The next level of presentation
is that of interactive multimedia where the user shifts from observer to
participant. Students can use presentation software and other related
technologies in the delivery of their design ideas or it may be used in the
creation of their final design solution. An example of this could be in the
design and creation of a film clip to accompany a music single. Editing
software for audio and visual effects are used to design and create the
necessary effects for the final video clip presentation.
Related Issues Affecting the Choice and Use of Computer-Based Technologies
In choosing the most
appropriate computer-based technology, students should consider the following
issues:
-
Availability of
technology,
-
Ethical use of the
technology,
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Copyright laws
associated with the use of the technology,
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Training required to
use the technology,
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Cost of using the
technology,
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Ergonomics and safe
use of the technology,
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Domestic, industrial
and commercial use of the technology.