Chapter 8. Detailed Design Methodology
| We are now ready for the detailed design, the stage when the designer (or design team) pulls together all the details into a coherent, cohesive design. Skilled practitioners are able to immerse themselves in the details, crafting stretches of dialog, while still keeping the larger context and goals in mind. The requirements and high-level design steps we have completed at this point facilitate this ability. As we go through the detailed design steps, you will see many of the methodological principles, first presented in Chapter 3, applied. We place significant emphasis on end-user testing, although the goals and approaches here are different from those in the definition phase. In this phase, you will see a number of process steps that help focus your design decisions on conversational design and consideration of appropriate context. In addition to the methodological principles described in Chapter 3, this chapter describes a set of design principles for VUIs. These guide you when crafting dialog strategies, call flows, and prompts. Some of these principles are common to all types of user interfaces, whereas others are specific to voice user interfaces. Detailed design involves the creation of a complete description of the call flow and all the prompts played by the system. The outcome of this phase is a detailed design document, and possibly a prototype. This chapter covers the following:
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