1. Editorial

   • Robert France
   • Bernhard Rumpe

   Regular contribution Pages: 1 - 2

2. Guest editorial

   • Martin Glinz
   • Günther Müller-Luschnat

   Special section on Modellierung 2002 Pages: 3 - 4

3. Models in software engineering – an introduction

   • Jochen Ludewig

   Special section on Modellierung 2002 Pages: 5 - 14

4. Communicating the variability of a software-product family to customers

   • Günter Halmans
   • Klaus Pohl

   Special section on Modellierung 2002 Pages: 15 - 36

5. Dealing with forward and backward jumps in workflow management systems

   • Manfred Reichert
   • Peter Dadam
   • Thomas Bauer

   Special section on Modellierung 2002 Pages: 37 - 58

6. A Methodological Approach for Object-Relational Database Design using UML

   • Esperanza Marcos
   • Belén Vela
   • José María Cavero

   Regular paper Pages: 59 - 72