There are several steps associated with the web design process. And each party involved, be it client or developer, has an integral part to play in each phase. From fact gathering and content resourcing or creation to wireframes and proofs, each of the stages can create different challenges but all are implemented to achieve a particular goal.
It is important to note that neither of of the processes involved is less or more important than another. In order to reach the final goal of deployment, each previous phase must be completed and approved before moving on.