| Vol-879 urn:nbn:de:0074-879-5 Copyright © 2012 for the individual papers by the papers' authors. Copying permitted only for private and academic purposes. This volume is published and copyrighted by its editors.

# IWSECO 2012
Workshop on Software Ecosystems

### Proceedings of the Forth International Workshop on Software Ecosystems

### Cambridge, MA, USA, June 18th, 2012.

Edited by

### Slinger Jansen *
Jan Bosch **
Carina Alves ***

* Utrecht University, Information and Computing Sciences, PO Box 80.089, 3508TB Utrecht, The Netherlands
** Chalmers University of Technology, Gothenburg, Sweden
** University of Recife, Recife, Brasil

## Table of Contents

1. Invited paper: EcoSysNetworks: A Method for Visualizing Software Ecosystems 1 - 5
   Bala Iyer
2. Theoretical foundations of software ecosystems 6 - 17
   Geir K. Hanssen, Tore Dybå
3. Mashups - Software Ecosystems for the Web Era 18 - 32
   Arto Salminen, Tommi Mikkonen
4. Leveraging Open Source Licenses and Open Source Communities in Hybrid Commercial Open Source Business Models 33 - 40
   Karl Michael Popp
5. Defining Software Ecosystems: A Survey of Software Platforms and Business Network Governance 40 - 58
   Slinger Jansen, Michael Cusumano
6. App Store, Marketplace, Play! An Analysis of Multi-Homing in Mobile Software Ecosystems 59 - 72
   Sami Hyrynsalmi, Tuomas Mäkilä, Antero Järvi, Arho Suominen, Marko Seppänen, Timo Knuutila

06-Aug-2012: submitted by Slinger Jansen
08-Aug-2012: published on CEUR-WS.org