Twice before over the past 50 years, two waves of information technology (IT) radically reshaped competition and strategy of enterprises; we now stand at the brink of a third transformation. Before the advent of modern IT, products were mechanical and activities in the value chain were performed using manual, paper processes and verbal communication. The first wave of IT, during the 1960s and 1970s, automated individual activities in the value chain. The rise of the internet, with its inexpensive and ubiquitous connectivity, unleashed the second wave of IT-driven transformation. This enabled coordination and integration across individual activities. It allowed companies, for example, to closely integrate globally distributed supply chains. Now, in the third wave, IT is becoming an integral part of the product itself. Embedded sensors, processors, software and connectivity (cyber-physical systems), coupled with a product cloud are driving dramatic improvements in product functionality and performance. Thus software quality assurance and software testing increasingly needs to adopt processes and techniques to address the challenges in these heterogeneous networks and environments (e.g., mobile environments, distributed systems, cloud services etc.). Therefore, this year’s target topic deals with quality assurance of applications in heterogeneous networks and environments. ASQT aims to facilitate exchange of industry case studies in the field of software development and operating / sourcing software, enable academic researchers and industry innovators to exchange ideas and results, and disseminate scientific results as well as expertise in the field of quality assurance and software testing ASQT 2015 is the 13th edition in a series of highly successful two-day user symposiums in the field of software testing, quality and innovation. This year, ASQT will be co-located with ICST 2015. ASQT 2015 and ICST 2015 offer shared keynotes and a shared session (practitioner’s topics). ASQT provides a vivid forum for development engineers, test engineers, quality managers, CIOs and academic researchers (e.g., from universities and industrial research centres) and promotes use-inspired collaboration between industry and academia on the upcoming challenges of software quality, test and innovation. Beside of topical cross-fertilization, ASQT provides an excellent networking opportunity with a focus on the D-A-CH area and CEE. The city of Graz with its superb quality of life offers a charming setting for the lively get-together in the evening.