paper's title: Patterns for GIS Application Design
authors: Federico Balaguer, Silvia Gordillo, Fernando Das Neves
e-mail: [fede, gordillo, babel17]@sol.info.unlp.edu.ar
postal mail: cc11 (1900) La Plata - Prov. Buenos Aires - Argentina
phone/fax: (54) 21 22-8252

Abstract:
Geographical Information Systems are used to collect, analyze, and
present information describing the physical and logical properties of the
geographic world. The problem of reusing design in GIS applications has
become also a need because in the last times, more and more users are
building GIS applications based on open systems and Web instead of using
a particular GIS product.
Understanding and representing spatial features is usually, the first
problem solved by every GIS model. Relationships and operations over
geographical objets are commonly more complex than those defined in
conventional applications.
In this paper we present a pattern system which make it possible define
the bases for a geographical model.

Subject Area: Geographical Information System

Keywords: GIS, Decorator, Roles, Geographic Position