We will introduce the status of research and development in "Adaptive Netwo
rks" -networks with a concept entirely different from any seen before, whic
h will support the information sharing society of the future. Adaptive netw
orks respond instantaneously to communication demands that change with ever
y passing moment, including a variety of network services and increasingly
diversified and complicated user needs. These networks are also equipped wi
th special features that allow dynamic evolution in the functions and const
ruction of the network itself.