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- Why should a school fork out £99 + VAT for a collection of "clip-art"?
- ----------------------------------------------------------------------
-
- This is a reasonable question as £99 is a big investment (in
- education circles) and clip-art may be had from countless public domain
- sources and companies specialising in low-cost graphics. The real questions
- to ask of ourselves and the competition are :
-
- 1. How much of the material is directly relevant to British science and
- technology education?
-
- 2. How easily can you access a suitable graphic from a multitude of sources
-
- 3. How compatible are graphics with each other in terms of scale, line
- thickness and content?
-
- 4. Have the graphics been drawn by subject specialists in science and
- technology?
-
- 5. Are the graphics derived from other machine formats or have they been
- drawn by and for the Arc?
-
- 6. Are the graphics used day-by-day in staff development material and
- publications for educationalists?
-
- 7. Is there on-going development in the scope and quality of the graphics
- material?
-
- 8. How widely is similar software used in educational establishments
- already?
-
- We answer these questions from our own perspective and ask any prospective
- purchasers to ask the same questions of other suppliers of what may appear
- to be similar software. We think you may find the SSERC Graphics Collections
- CD-ROM to be unique in content, applicability and value-for-money.
-
- 1. SSERC is a national service agency providing advice, information,
- consultancy and training on science and technology equipment and facilities.
- The graphics and applications have arisen as a useful by-product of what we
- do for Scottish teachers. Every three months, to keep teachers up-to-date on
- the latest equipment, practical techniques and health & safety matters, we
- publish the SSERC Science and Technology Bulletin (normally 36-40 A4 DTP'd
- pages typeset on Acorn machines running Impression II, Vector, Revelation II
- and Draw software).
-
- As each SSERC Bulletin is put together, new graphics have to be created to
- support the articles therein. Equipment already drawn makes the compilation
- of apparatus set-ups quick and easy. Similar development supports teacher
- and technician in-service courses for equipment usage, health and safety
- practice, applications of modern instrumentation and usage of information
- technologies. Therefore all material has a direct relevance to education now
- and in the foreseeable future.
-
- 2. When SSERC started with the Graphics Libraries it was a relatively simple
- matter to place separate subject area graphics on separate discs and
- sub-divide the material into the relevant directories. This was OK when we
- had just 8 then 15 floppy discs. It soon became increasingly difficult to
- update and add new material without the whole process of cataloguing the
- graphics becoming too unwieldy.
-
- Therefore we anticipated that the CD-ROM format, with its vast storage
- capacity, would be the answer, provided we had a friendly 'front-end'
- application to search for graphics on the basis of key words or parts of key
- words. All the graphics from the Graphics Libraries in their various formats
- e.g. text-to-path, sprites, DXF etc. plus brand-new graphics, programs,
- applications, Vector Libraries, !Draw Practical Guides and interfacing data
- are collected together on the CD-ROM.
-
- We are confident that our front-end provides the means to access,
- cross-reference and display any file from 9000 in access times typically
- less than 10s, provided you know part or all of the subject word for which
- you are looking. This resource will make the task of putting together
- multi-media presentations much easier as disparate graphics, applications,
- data and programs are drawn together. e.g. a search for "ECG" will bring up
- drawings and sprites of the heart, an explanation of the PQRST waveform, a
- biological amplifier, ECG screen colour-corrected for black and white
- printing, ECG interfacing apparatus set-up and finally real interfacing data
- derived from that apparatus. See also answer 5.
-
- 3. Right from the start, when the Graphics Libraries were first thought of,
- it was anticipated that all 'real' apparatus should be drawn on a set grid
- to a set scale. It was a source of annoyance then and still is nownow when
- we see graphics obviously drawn from different sources which are
- incompatible in terms of scale, line thickness and impossible to edit or
- customise. Therefore when you bring any pieces of SSERC apparatus graphics
- on to Draw or Vector set to a 1 mm grid (shown or not) you know that they
- will look correct in relation to each other and can be edited without losing
- your verticals & horizontals! - no more test-tubes looking like buckets,
- tubing like hose-pipes etc. What price professional time saved in creating
- apparatus set-ups, worksheets and examinations with the minimum of fuss and
- the maximum of clarity for the teacher, and more importantly, the pupil?
- Electronics, architectural lighting and pneumatics diagrams for circuits and
- prototyping were placed on a 1/10th inch grid because of the traditions in
- that area.
-
- 4. The staff at SSERC are professional scientists and technologists and use
- the information technology within the Centre to the full. The Graphics
- Collections CD-ROM has become an essential part of increasing the
- efficiency of what we do. It will provide both the test-bed and launch-pad
- for similar projects in the future which maximise the use of this
- technology. We understand the requirements of teachers and technicians
- through answering questions over the phone and by fax or in meeting them
- face-to-face during staff development days.
-
- 5. Many of the graphics and CD-ROMs you see around at present are ex-Mac,
- ex-PC and ex-USA material. Nothing wrong with that. It does get irritating
- though when the language is colored with references which don't get off the
- first-base of applicability in Britain, so-to-speak! Another inconvenience
- and sometimes a downright impracticality is the size of some of the files.
- If you are doing a compilation diagram your application soon runs out of
- memory. Try editing a supposed Drawfile which has been converted from a
- sprite or scanned-in image and it seems to take 3 years to display the
- multitude of blue-square control points, none of which are any good for
- editing anyway! The Drawfile of the skeleton in the BodyBits directory of
- Biology is only 66K. This is because the bones were 'hand-drawn' using the
- the minimum number of control points but with the maximum use of the Bezier
- curves to retain curvature detail where necessary. This principle is applied
- to most of the graphics to be found on the Graphics Collections CD-ROM.
-
- 6. See answer 1.
-
- 7. See answers 1. and 4.
-
- 8. The Graphics Libraries are already widely used in over 1000 schools,
- colleges and universities throughout the U.K. and as far afield as Norway,
- Sweden, Luxembourg, Singapore, Holland, Belgium, Germany, Austria, Australia
- and New Zealand. We aim to build on this success and provide teachers and
- educational publishers with the best graphics with the minimum investment.
-
- Remember the SSERC Graphics Collections CD-ROM represents a site-licence for
- a school. Just work out how much senior professional time you could buy for
- £99? All existing users of the Graphics Libraries are entitled to £3 off
- the price for every disc previously purchased. Attractive discounts are also
- offered to larger educational establishments, education authorities or
- consortia of schools for multiple copies of the CD-ROM.
-
- Remember that CD-ROM is a read-only medium and files present on the CD
- cannot be edited and resaved. They can however be copied to floppy or hard
- disc and edited there within the terms of the site licence. Remember also
- that CD-ROM is slower than a hard disc. If there are graphics which you use
- often then it may be convenient to store copies on your hard disc for quick
- access times. Have fun!
-
- Some statistics about the SSERC Graphics Collections CD-ROM
- ------------------------------------------------------------
- average cost less than 1p per file
-
- 127 molecules each in up to 18 different
- model representations programs to generate Drawfiles of gears, sprockets,
-
- ratchets, tapped threads, washers, tubes, nuts, bolts etc. 38 multiple page
-
- help/info files available for multi-tasking display when using
-
- 880 files of interfacing data derived from real experiments
-
- 28 Vector Libraries
-
- interactive help available on search operations
-
- upwards of 50000 key words
-
- indexing data alone is almost 1Mb
-
- 4 years of graphics work at SSERC
-
- 330 Mb in total
-
- 1045 files compatible with Worracadgraphics/applications.
-