Seniors are the fastest growing group using the internet, with 25% of seniors with computers going online and 70% using their computers daily. As people age, their vision, cognition, hearing, and motor skills can decline in ways that impact web use. Web pages should have large text, high contrast, simple layouts, and avoid flashing content. Research on menu design also applies to web hierarchies, with shallower but wider structures often better for seniors compared to deep, narrow structures. Further research is needed to better understand how aging impacts online searching.

1. Panayiotis Zaphiris Industrial and Manufacturing Engineering Dept. Institute of Gerontology Wayne State University Detroit, MI Older Adults and the World Wide Web

16. Lee MacGregor model

17. Proposed Modified Model Where a1 and a2 are age related parameters.

22. Optimization Results Results being the optimum number of items per screen. E = Exhaustive, S = Self terminating, EA = Exhaustive aging, SA = Self terminating aging.