This is my personal experience sharing where I present two coding patterns which have developed during years of Drupal development. I expect the format of the session to be more like a discussion.

1) One is about how to efficiently handle use-cases when there is a need to have many of similar content types.

2) Secondly how to keep code complexity under control when developing larger application sites. (Code size >100k).

About Ragnar:
My major proffesional skill is programming and I have continuous experience around 25 years. Recent years I have been more involved in web development. Around 6 years I have had intense experience with Drupal. I like hardcore coding (module building). Frontend graphical design I don't like at all. I have been build around 30 sites. So far I have worked mostly alone covering almost all aspects for webpage development.

https://drupal.org/user/431209