This document gives an overview of a Grid testbed architecture proposal for the NorduGrid project [1]. The aim of the project is to establish an inter-Nordic1 testbed facility for implementation of wide area computing and data handling. The architecture is supposed to define a Grid
system suitable for solving data intensive problems at the Large Hadron Collider at CERN [2]. We present the various architecture components needed for such a system. After that we go on to give a description of the
dynamics by showing the task flow.
The term Nordic covers the countries: Denmark, Norway, Sweden and Finland.