Once the general parameters of the project have been established, the Architect will then embark on creating the overall vision or language that will form the foundation of their project and idea. These concepts will typically formulate in rough forms (sketches, collogues, models, etc.) that will be able to convey to both the client and the Architect themselves to essence of the project.
When you work with any Architect, the most typical means of visual communication they will employ will be through simple floor plans, building elevations, renderings, and models. Material samples, related imagery, magazine & book references are also quite commonly used to convey ideas in the fastest and simplest way. The goal of this step is establish the primary benchmark for the design goals that will be a touch-stone throughout the rest of the process. Typically there will be many explorations and different variations that occur during this phase.