xtUML Days 2019 UK is coming September 12 in Cheltenham. This is the 6th edition of xtUMLDays. Last year xtUML Days hosted a substantial contingent of Shlaer-Mellor expertise from Saab, Vricon, UK Govt, ICS, BAE Systems, Kyushu University and others. This year will introduce new members to the modeling community.
The information page is here: https://xtuml.github.io/xday/xday2019.html