000001030 001__ 1030 000001030 005__ 20180716081223.0 000001030 037__ $$aBELLE2-TALK-CONF-2018-080 000001030 041__ $$aeng 000001030 100__ $$aThomas Kuhr 000001030 245__ $$aBelle II at the Start of Data Taking 000001030 260__ $$aThomas Kuhr$$c2018-07-11 000001030 300__ $$a36 000001030 500__ $$aPresented at the CHEP2018 conference 000001030 520__ $$aThe Belle II experiment is taking first collision data in 2018. This is an exciting time for the collaboration and allows to not only assess the performance of accelerator and detector, but also of the computing system and the software. Is Belle II ready to quickly process the data and produce physics results? Which parts are well prepared and where do we have to invest more effort? The collaboration was founded ten years ago in 2008. At that time also a broader discussion about the software and computing started. The software development history involves (revisions of) decisions about the framework, the event data model, the geometry package, the conditions data handling, the development infrastructure, the coding conventions, and the release procedures. We will take a look back, assess the decisions from the current point of view, and tell the lessons learned, including those from first data analyses. Based on this experience, we will also anticipate further challenges and present the plans to resolve them. 000001030 6531_ $$aSoftware 000001030 6531_ $$aComputing 000001030 8560_ $$fthomas.kuhr@lmu.de 000001030 8564_ $$uhttps://docs.belle2.org/record/1030/files/BELLE2-TALK-CONF-2018-080.pdf