Heinz Spiess
EMME/2 Support Center, Haldenstrasse 16, CH-2558 Aegerten, Switzerland
Email: heinz@spiess.ch
October 2000
Abstract:
This paper is aimed at presenting a first introduction to Enif, a new software which provides a modern graphical user interface for accessing existing EMME/2 data banks. Enif is not intended to replace EMME/2, but to coexist with EMME/2 and complement it. The main goal of the paper is to discuss the design of Enif and explain the technical concepts on which it is based. These are not limited to the graphic user interface and the production of high quality graphic output, but go all the way down to defining new mechanisms how to store and handle network data and how to provide user configurable objects. In fact, the only thing Enif has in common with EMME/2 is that both can be used to access the same EMME/2 data banks.Output examples produced with the current pre-production implementation of Enif are included in order to illustrate how Enif's features can be combined in a very flexible way to produce a great variety of network related graphic output.
A printable PDF version of this document is available here.
Introduction This year, it is 20 years that the initial design of EMME/2 was decided upon. Since that time, EMME/2 has continuously been enhanced and improved, adding many new features and modeling capabilities. However, the basic design described in the initial publications on EMME/2 [1,3] is essentially still valid today. On the one hand, this proves the importance of building on a solid conceptual base - without it, EMME/2 would never have gone this far and kept growing all the time. On the other hand, times have changed a lot since the early eighties, and interactive computing is a totally different thing TODay than it was then. While the ``age'' of the basic conc
