KNOWLEDGE-BASED CONCEPTS
Inventions, which are the product of new thinking,
new methods, and new knowledge,
often require the longest time period
between initiation and market implementation
because of the need for testing and modification.
For example, cell phone technology
has advanced to include not just phone service
But cameras, Internet access, and music.
This has revolutionized the way we use cell phone today.
These concepts were not thought possible just five years ago;
some examples of these innovation sources are presented in
Table 5.1