Systems, Software and Services Process Improvement 26th European Conference, EuroSPI 2019, Edinburgh, UK, September 18-20, 2019, Proceedings - Walker, Alastair; Walker, Alastair; O'Connor, Rory V.; O'Connor, Rory V.; Messnarz, Richard; Messnarz, Richard (Springer International Publishing : Imprint: Springer, 2019)