title: Aren't Collection or arrays used in Web API odata models?
body: <p>My experiment <a href="https://stackoverflow.com/questions/20998867/expanding-collections-using-web-api-odata-controller">Expanding collections using Web Api OData controller</a> triggered me to think about my design. </p>
  
  <p>I am wondering am I the only one using collection in a web api model because I dont find many examples, etc on any forums of such kind. </p>