  This paper investigates the concept of digital city. First, a functional
analysis of a digital city is made in the light of the modern study of
urbanism; similarities between the virtual and urban constructions are pointed
out. Next, a semiotic perspective on the subject matter is elaborated, and a
terminological basis is introduced to treat a digital city as a self-organizing
meaning-producing system intended to support social or spatial navigation. An
explicit definition of a digital city is formulated. Finally, the proposed
approach is discussed, conclusions are given, and future work is outlined.
