proceed to engineering phases 4-6 >>

volume, mass, look

control logic

muscle groups

portability and balance

    task analysis, fit, comfort

scale, accessibility

Phase 0. Plan and schedule
We need a yardstick to measure success. By building it right, we will know when ideas are heading in the right direction. We'll measure progress within the context of the project. We'll know when we're done. We'll assemble the right team of designers, engineers, and suppliers.
Phase 1. Ask questions, propose ideas
We begin a creative process to reveal needs, put them in order, then explores and defines a  product's personality. Ideas lead to questions, then to more ideas and then to an understanding of where we'll need to be in the end. Working sessions and reviews are tailored to your particular decision structure and internal resources.
Phase 2. Draw, model, talk, think, model, ask, etc.
Now we're at the bones of the design: taking requirements and developing order.  Solutions can be touchy-feely at times, hard-nosed at other times. The two must come together at some point - usually sooner. We keep that inevitable merger in mind, even when we're just thinking about possibilities.
Phase 3. Specify everything down to the details.
Gaining approval requires more than just good ideas. If a design is well planned and managed, it survives the rigors of engineering with its integrity intact. Then Mechanical Engineering starts to play a lead role as the designers determine color, labels, and packaging. We ensure that the parts are ready for engineering design and that the plans are detailed for easy processing and consistent appearance.
Sketches are useful, but we prefer concept models.
Design concept study models are the best  to prove: