Strategies for Representing Graphics: from eText to Alt Tags to Tactiles

Strategies for Representing Graphics: from eText to Alt Tags to Tactiles Accessing Higher Ground, 2013 Robert Beach and Gaeir Dietrich

Presenters Gaeir Dietrich Director High Tech Center Training Unit CCCs gdietrich@htctu.net 408-996-6047 Robert Lee Beach Assistive Technology Specialist Kansas City Kansas Community College rbeach@kckcc.edu 913-288-7671

Graphics. What to do? • Web pages, DE courses, online documents • Alt text • In books • Possibly alt text • Generally preferred • Possibly insert the caption • Preferred by some students so that the caption does not interrupt reading

As Specific Accommodations • When working with a particular student, ask his/her preferences. • Some students do not want the graphics. • Some students will have a reader describe graphics. • Some students will want either the embedded caption or alt text.

I have the graphic, now what? • First figure out the purpose of the graphic. • What does the graphic convey? • How much is the purpose of the graphic informational? How much decoration?

Describing Graphics • When determining the purpose, always consider the context in which the graphic is being shown. • The same graphic may have a different purpose in a different context. • Sometimes decoration • Sometimes informational

How Do I Decide?? • Does the student need to do something with the graphic or understand something from it? • Informational • Is the graphic simply entertaining or “pretty”? • Decoration

Informational • If information is being conveyed, then consider… • What is the information being presented in the graphic? • Is that information already conveyed in the text? • How can I describe the graphic in as few words as possible?

Decoration • Does it even need to be described? • If not, null text it or “_” . • If yes, how much? Usually very little.

What Do I Say?* • 1. Be objective • Stick to the facts, do not interpret • 2. Be brief • The shorter the better • 3. Be descriptive • Use words that convey clear meaning • 4. Be logical • Use a sequence or structure • 5. Be accurate • Make sure the information you give matches the book/site • * From A Picture Is Worth 300 Words: Writing Visual Descriptions For An Art Museum Web Site by Adam Alonzo

No Single Right Way • There is not only one way to describe graphics. • Just remember… • Keep context in mind • Ask yourself: Is this something the person really needs to hear?

Exercise Photo 1 • In a book about exercise, this photo appears at the beginning of a chapter on nutrition:

Possible Alt Text • The photo is decorative. • It is simply illustrating the theme of the book. • Keep the description simple: • People biking

Exercise Photo 2 • In the same textbook, the graphic below is included next to boxed text about the benefits of strength training.

Possible Alt Text • This graphic is purely decorative. • Since this graphic is essentially “eye candy,” it is a good example of when a null tag might be useful. • If you do want to describe, keep it very short: “Smiley face lifting weights.”

Logo Example 1 Kansas City Kansas Community College Presents an Evening of Jazz Come join us for two hours of wonderful jazz by the lake. …

Possible Alt Text • The logo is decorative. • Logo is branding for school, but in this context is essentially decorative from the end-user’s viewpoint. • Since the graphic is decorative, keep it simple. • College logo • KCKCC logo

Logo Example 2 • In marketing your business, the design of a logo can make a big impression or can be a waste of money. The logo needs to be attractive but not dominate other information presented along with the logo. In the example below, what catches your attention?

Possible Alt Text • The logo is informational. • In this case, the same logo is a specific example and requires a more lengthy description. • Focus on what the student needs to know: • Interlocking blue K and red C on left with the words “Making Life Better” in red above the college name in black blocked and underlined with a blue line.

Blood Pressure Example 1 • Proper positioning of the cuff, stethoscope and arm are important to accurate blood pressure readings. The arm should be relaxed and straight, resting on a flat surface. The cuff should be positioned just above the elbow. The stethoscope should be positioned over the brachial artery at the bend of the elbow. See the example for proper technique.

Possible Alt Text • The graphic is decorative. • The graphic is illustrative of what has been described in the text, and no further description is needed. • Keep the alt text simple: • Taking blood pressure, see description above. (In other contexts, may say, “see description on page xx.”)

Blood Pressure Example 2 Proper positioning of the cuff, stethoscope, and arm are important to accurate blood pressure readings. See the example below for a demonstration of correct technique.

Possible Alt Text • The graphic is informational. • Since the photo illustrates a particular procedure, it would require a longer description because the description is not already present in the text. • (If you have the book, check the surrounding pages for a longer description.)

Math Example 1 • The graph of a Gaussian function is a characteristic symmetric “bell curve” shape that quickly falls off towards plus/minus infinity.

Possible Alt Text • The graphic is informational. • The graph illustrates what a bell curve is. • Alt text could be “A bell curve.” • However…what if the student does not know what a bell curve is?!?

When More Is Needed • Sometimes even a long description will not really convey the information in the graphic. • The alt text will not be sufficient for a student’s needs. • Tactile graphics to the rescue!

What Are Tactile Graphics? • A tactile graphic is a tactile representation of the content conveyed by a graphic. • Tactile graphics are not simply “copies” but are new conceptualizations of the information being conveyed. • They convey the same information in a totally different form.

Tactiles Needed • STEM subjects • Tactile graphics are often needed to convey complex concepts • Charts and graphs • Molecular structures • Circuits and vectors • Diagrams of systems • Flowcharts • Maps

Finding Tactiles • Ready-made graphics are sometimes available • American Printing House: www.aph.org • National Braille Press: www.nbp.org • Princeton Braillists (maps) : https://nfb.org/images/nfb/publications/braille/tactilemaps.htm • Predescribed graphics • Diagram Center: http://diagramcenter.org/

Talking Graphics • Touch Graphics • Talking Tactile Tablet • http://www.touchgraphics.com/ • View Plus • Tiger Embosser • IVEO talking tablet • http://www.viewplus.com/

Hiring Work Done • Alternate Text Production Center (ATPC) • www.atpc.net • Princeton Braillists • http://mysite.verizon.net/resvqbxe/princetonbraillists/ • South Dakota Pheasantland Industries • http://doc.sd.gov/adult/industry/shop/braille.aspx

Who Ya Gonna Call? • Tactile Graphics Expert • Lucia Hasty • http://www.rockymountainbraille.com/ • Contact us for other recommendations

Making Tactile Graphics • Collage • Puff paint, magnets, cork boards and string, Wiki Stix • Sewell raised line drawing kit • PIAF (Pictures in a Flash) • www.HumanWare.com • Braille embossers • Tiger embosser • Phoenix embosser

What to Consider • How are we going to convey the information represented in the graphic? • BANA Guidelines • BANA (www.brailleauthority.org) has a great decision tree for determining what you need for a tactile graphic

Reality Check • Not all students are familiar with tactile graphics. • To help students learn… • Start with a 3D model • Present the same concept with collage • Now create a PIAF representation of the concept

Tactile Graphics Resources • BANA Tactile Graphics Guidelines • http://www.brailleauthority.org/tg/index.html • Tactile Graphics Web site • www.tactilegraphics.org

Resources & Credits • A Picture is Worth 300 Words • http://www.csun.edu/cod/conf/2001/proceedings/0031alonzo.htm • DIAGRAM: http://diagramcenter.org • NCAM: http://ncam.wgbh.org • Blood Pressure photo • Photo Credit blood pressure check image by .shock from Fotolia.com

Thank you! • Robert Beach • rbeach@kckcc.edu • Gaeir Dietrich • gdietrich@htctu.net

Strategies for Representing Graphics: from eText to Alt Tags to Tactiles