deletions | additions       diff --git a/abstract.tex b/abstract.tex  index 81c290c..cb6d52f 100644  --- a/abstract.tex  +++ b/abstract.tex 
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contain at least 70 and at most 150 words. It should be written using the  \emph{abstract} environment.  \keywords\textbf{Accessible design} is considered to be "a design process in which the needs of people with disabilities are specifically considered". Accessibility sometimes refers to the characteristic that products, services, and facilities can be independently used by people with a variety of disabilities.   \textbf{Assistive technology} (AT) is defined as "products, equipment, and systems that enhance learning, working, and daily living for persons with disabilities."