Design Process Principles Spiral Design / the ability of a design to emerge through a logical sequence of different versions, where each version is a richer and more practical and efficient realization of the ideal Appreciative critique / the assessment of an existing or considered design's strength and descriptions of elements and functions we would also like to see incorporated into the design Fusion / the both-and (vs. either-or) intention to incorporate conflicting or opposing elements or functions in a design Creative tension / designing versions of a design while still having unresearched or undecided ambiguities and uncertainties User stories / detailed descriptions of how users expect and desire to use a design in the future Diverse designers / the value of designers who represent diverse expertise, disciplines, constituencies, use, and perspectives Transparency (aka trustworthiness) / the willingness of designers to make evident their respective agendas, dreams, assets, and constraints Idea funnels / the larger the funnel of possible ideas into the process, the greater the quality of ideas that evolve from the process Research / the designer's willingness to inspire designs with historical, current practice, and metaphor related research Biomimicry / using functionally related examples in nature to design for better functionality, durability, or efficiency in build/use/reuse Reality-based decisions / the willingness to base design decisions on facts and data rather than unresearched assumptions Constraints / the conditions, elements, variables, and requirements that cannot or must not change (the "sacreds") Dream Space / the multiple versions of desired futures starting at least 20 years (one generation) out Impermanence / designing in anticipation of inevitable change, error, failure, disuse, or obsolescence