Concepts

        * Querying: Page, Sort (including Group) and Filter. Project.

        * Specification pattern

        * Specification pattern and LINQ

        * IQueryable

        * Repository pattern

    Implementation

        * NHibernate LINQ provider IQueryable

        * Specifications as first class domain citizens

            * Used by entities

            * Use by service layer

        * The fat repository

    Questions

        * Should we expose IQueryable to outside the domain? To the view layer?

            * If not, what are the alternatives?

        * How do you deal with dynamic queries?

        * To what extent is a DSL a viable option?