Part: Lean Software Development -- The Early Stage Software Startup Development Model: A Framework for Operationalizing Lean Principles in Software Startups -- Lean Software Development - What Exactly Are We Talking About? -- Lean Software Development Measures and Indicators - A Systematic Mapping Study -- Part: Quality and Performance -- Bringing Total Quality in to Software Teams: A Frame for Higher Performance -- Improving Development Visibility and Flow in Large Operational Organizations -- A Brief History of Budgeting: Reflections on Beyond Budgeting, Its Link to Performance Management and Its Appropriateness for Software Development -- Case Study in Responsive Web Design: Pragmatic Agile and Hero Team Approach - Time and Cost Savings with Quality Improvement -- Part: Case Studies -- Success Factors in New Service Development - Digia Flowd Analysis -- Creating Minimum Viable Products in Industry-Academia Collaborations -- Towards Data-Driven Product Development: A Multiple Case Study on Post-deployment Data Usage in Software-Intensive Embedded Systems -- Feature Prioritization Based on Mock-Purchase: A Mobile Case Study -- Part: Emerging Developments -- Fuzzy Cognitive Maps as Decision Support Tools for Investigating Critical Agile Adoption Factors -- Agile Project - An Oxymoron? Proposing an Unproject Leadership Model for Complex Space -- Exploring the Tensions between Software Project Portfolio Management and Agile Methods: A Research in Progress Paper.

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.