This book contains the refereed proceedings of the 4th International Conference on Lean
Enterprise Software and Systems LESS 2013 held in Galway Ireland in December 2013. LESS
fosters interactions between practitioners and researchers by joining the lean product
development and the agile software development communities in a highly collaborative
environment. Each year the program combines novelties and recent research results that make
new ideas thrive during and after the conference. This year the conference agenda was expanded
to incorporate topics such as portfolio management open innovation and enterprise
transformation.The 14 papers selected for this book represent a diverse range of experiences
studies and theoretical achievements. They are organized in four sections on lean software
development quality and performance case studies and emerging developments.
