Mitchell Harris

I'm a software engineer on the Narrative and Context team. We try to tell the story of your ancestors lives. By discovering interesting context about ancestors and communicating them in compelling natural language stories, we hope to bring or relatives lives into a vivid story, rather than a collection of records and facts.

Announcing Daisy, An Ultra Lightweight, Open Source Rules Engine

Posted by Mitchell Harris on January 23, 2014 in Development

We just released a new open source package here at Ancestry: Daisy. Daisy is a business writeable domain specific language for business rules. It lets business experts write the rules, and software developers define how they are implemented. Daisy itself is domain agnostic, but allows domain experts and software developers to create the rule domain together.  An example Read More

Make your next UI library with an HTML API

Posted by Mitchell Harris on June 19, 2013 in Development

Things are changing in the front end web world. Among those changes are HTML APIs.  Here’s the problem. You’ve made a webby-UI widget that is really cool. It’s so cool, that other people want to re-use it. How do you expose your widget so that other people can use it? In the old world, you Read More