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Chapter 1. A Design Process for Digital Products
Goal-Directed Design is a powerful tool for answering the most important questions that crop up durng the definition and design of a digital product:
- Who are my users?
- What are my users trying to accomplish?
- How do my users think about what they're trying to accomplish?
- What kind of experiences do my users find appealing and rewarding?
- How should my product behave?
- What form should my product take?
- How will users interact with my product?
- How can my product's function be most effectively organized?
- How will my product introduce itself to first-time users?
- How can my product put an understandable, appealing, and controllable face on technology?
- How can my product deal with problems that users encounter?
- How will my product help infrquent and inexperienced users understand how to accomplish their goals?
- How can my product provide sufficient depth and power for expert users?
The remainder of this bok is dedicated to answering these questions.
Chapter 7. A Basis for Good Product Behavior
Interaction Design Principles
Principles operate at differnt levels of detail
Design principles operate at several levels of granularity, ranging from the general practices of interaction design down to the specifics of interface design.
- Concenptual principles
help define what digital products should be like and how they fit structurally into the broad context of use required by their users. Chapter 8 through 13 discuss conceptual-level design principles.
- Behavioral principles
describe how a product should behave - in general and in specific contexts. Chapter 14 through 17 discuss general behavior-level principles.
- Interface-level principles
describe effective strategies for the organizations, navigations, and communication of behavior and information. Chapter 18 through 21 discuss inteface-level principles (and patterns) of interaction design.