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Chunking means breaking up the text so readers do not see a solid
block of text (Smith & Drakeley, 1998). Text that has been chunked
effectively should both stand alone and work well with the rest
of the hypertext document (Mitternight, 1998).
Chunked text:
Improves screen reading by giving the eyes a rest
Due to the limitations of screen reading, chunking is especially
important online.
Helps readers retrieve and process information more quickly and
retain it longer
Chunking coincides with the natural way the human mind functions
while taking in new information and applying stored information
to new situations (Shirk, 1991). For example, in controlled processes
such as computer-based training, the mind can process only about
three to four chunks of information at a time (Stillings et al,
1987).
One way to take advantage of this feature of human cognition is
to organize information into small, manageable pieces so they
can be presented on a single screen (Shirk, 1991).
Before & After example: Chunking text
Before: Text that needs to be chunked
Bouldermag.com's guide to restaurants in Boulder, Colorado offers
helpful information to readers seeking a new dining experience.
However, some of the restaurant descriptions present readers with
a solid block of text.
For instance, the guide's description for Antica Roma Ristorante & Bar presents one long paragraph with insufficient white space. This
unbroken river of text makes reading difficult.
After: Text that is appropriately chunked and labeled
Antica Roma Ristorante & Bar
1308 Pearl St., on Pearl Street Mall, 303-442-0378. Features an
authentic Italian menu created by Mario Zorzetto, voted 1999 Best
Chef in Colorado and called "The Chef of the Italian Jet Set,"
and a Wine Spectator award-winning wine list with more than 300
Italian selections.
Enjoy casual and intimate indoor seating with the ambiance of
an old Roman piazza, or dine on the outdoor patio on Pearl Street
Mall. Italian cultural events; call for information. Open daily
for lunch and dinner. MC, VISA, AMEX, DISCOVER, DC. Local checks
accepted.
Italian Selections
Enjoy panzanella, or pizza made fresh and cooked in a wood-burning
oven. Authentic Italian entrees include choices such as saltimbocca
alla Romana; bistecca al pepe verde, homemade lasagna, ravioli
filled with lobster, ricotta and spinach or smoked salmon, and
an assortment of seafood pasta dishes.
Daily chef specials and delicious homemade pastas (named "Best
of Boulder") such as rotolo di pasta. For dessert, try the delicate
tiramisualso voted "Best of Boulder"or the panna cotta and crème
caramel. Fine selection of grappas, ports, homemade limoncillo
and spirits.
Lunchtime Buffet
Try the lunchtime buffet Mon-Fri 11:30am-3pm, featuring a choice
of chicken, pork, three pastas, soup, salad and homemade bread
for $8.50 per person.
Tips for chunking text
Split your online document into multiple, hyperlinked pages of
topics.
Break up your text into short, self-contained topics.
Label chunks to clearly identify their content.
Recognize that chunking requires compromise and judgment.
For William Horton (1994), "Dividing a subject into discrete topics
is as much art as science and requires compromise and judgment"
(p. 109).
Use either a fixed or variable size strategy (Horton, 1994)
Fixed size
With the fixed size strategy, all topics are the same length,
usually the size of a paper page or a computer screen or window.
Variable size
With the variable size strategy, the size of the topic varies
to fit the content. (This paper uses the variable size strategy.)
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