Software is the essential enabler for science and the new economy. However, current tools and methodologies remain expensive and not yet sufficiently reliable for a changing and evolving market, while many approaches which seemed promising have proved to be little more than case-orientated solutions. This book contains 30 extensively reviewed papers from the SoMeT_10 international conference on new trends in software methodology, tools and techniques in Yokohama, Japan, and is the latest volume in the SoMeT series. The annual SoMeT conference represents a chance for researchers and practitioners worldwide to meet and share research results and practical developments in software science and related new technologies. This year, the emphasis has been on human-centric software methodologies, end-user development techniques and emotional reasoning. Subjects covered range from all aspects of software security, optimization and assessment to intelligent software systems, cognitive models and the philosophical aspects of software design. Exploring issues from research practices, techniques and methodologies, and proposing and reporting the solutions needed for global world business, this book offers an opportunity for the software science community to reflect on where they are today and how they can work to achieve an optimally harmonized performance between the design tool and the end-user.IOS Press is an international science, technical and medical publisher of high-quality books for academics, scientists, and professionals in all fields. Some of the areas we publish in: -Biomedicine -Oncology -Artificial intelligence -Databases and information systems -Maritime engineering -Nanotechnology -Geoengineering -All aspects of physics -E-governance -E-commerce -The knowledge economy -Urban studies -Arms control -Understanding and responding to terrorism -Medical informatics -Computer Sciences