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advanced topics in touchdevelop active research project o 5 researchers Nikolai Tillmann Michał Moskal Peli de Halleux Manuel Fahndrich Sebastian Burckhardt o in 2011: 2 PhD interns 2 highschool interns

advanced topics in touchdevelop cloud state o When distributed clients query or update shared data, eventual consistency can provide better availability than strong consistency models. However, programming and implementing such systems can be difficult unless we establish a reasonable consistency model, i.e. some minimal guarantees that programmers can understand and systems can provide effectively. To this end, we propose a novel consistency model based on eventually consistent transactions. ✿ Eventually Consistent Transactions Sebastian Burckhardt, Manuel Fahndrich, Daan Leijen, and Mooly Sagiv

advanced topics in touchdevelop cloud plugins o callbacks from touchdevelop.com to your webservice register your own URL to receive notifications about new publications o plugins (meta apps) – integrate in app your webservice annotates AST your webservice generate traces (test cases)

advanced topics in touchdevelop splitting execution o some event handlers don’t depend on phone state “when MSFT stock price > 30, then …” o automatically split code some parts execute on phone other parts in cloud

advanced topics in touchdevelop program your house o imagine all of your devices are connected to your WiFi your TV your fridge (temperature, inventory) your wine cellar (temperature, inventory) your barbecue (temperature, inventory) your sprinkler system in the garden o your scripts access everything

advanced topics in touchdevelop debugging o how to debug code on a touchscreen?

advanced topics in touchdevelop custom UI o how to design a touchscreen UIs on a touchscreen?