Workshop Summary: 2019 IEEE / ACM Fourth International Workshop on Metamorphic Testing (MET 2019)

MET is a relatively new workshop on metamorphic testing for academic researchers and industry practitioners. The first international workshop on MET (MET 2016) was co-located with the 38th International Conference on Software Engineering (ICSE 2016) in Austin TX, USA on May 16, 2016. Since then the workshop has become an annual event. This paper reports on the fourth International Workshop on Metamorphic Testing (MET 2019) held in Montréal, Canada on May 26, 2019, as part of the 41st International Conference on Software Engineering (ICSE 2019). We first outline the aims of the workshop, followed by a discussion of its keynote speech and technical program.