The Anatomy of a Design Decision – Design Decision Styles
 By Jared Spool
 Intro
 When can you trust your gut and when can you not trust your gut about a decision? All designs are comprised of many, if not thousands, of decisions. The aspect that makes a designer great relates to his/her ability to make a gut decision in an effective manner.
 Unintentional Design
  - When the design happens on its own, where the underlying architecture, systems, and business dictate what the final design looks like. The user is not considered.
  - Works when: 
 - Users will put up with whatever we give them (small user count, infrequent usage, unique interaction, etc. warrants no need for intentional design decisions)
  - We don’t care about support costs or pain from frustration
  
   - Transition to Self Design – “Eating your own dogfood”
  
 Self Design
  - When we design something for our own use
  - Works when: 
 - Users are just like us
  - We regularly use it like our users do
  
   - Transition to Genius Design – Usability Testing
  
 Genius Design
  - When we’ve previously learned what users need
  - Works when: 
 - We already know their knowledge, previous experiences, nuances, subtleties, and contexts
  - We solve the same design problems repeatedly
  
   - Transition to Activity-Focused Design – Field Studies
  
 Activity-Focused Design
  - When we’re designing for new activities unfamiliar to us
  - Works when: 
 - We can easily identify the users and their activities
  - We need to go beyond our own previous experiences
  - Innovations can come from removing complexity
  
   - Transition to Experience Design – Personas & Patterns
  
 Experience-Focused Design
  - When we’re designing for the entire experience
  - Works great when: 
 - We want to improve our users’ complete experiences, in between the specific activities
  - We can be pro-active about the designs
  - Game-changing innovations are the top priority
  
   
 Informed Decisions vs. Rule-Based Decisions
  - Rule-based decisions rarely work in the long term. It is often better to inform the reasoning behind a design decision as exception-cases always surface that do not work within the rules. Being informed on the decisions behind a design, enables a solution for an exception-case that is aligned with original intent.
  - Rule-based decisions typically prevent thinking whereas informed decisions require thinking.
  - Create a Pattern Library as opposed to strict style guidelines. This Pattern Library becomes the path-to-least-resistance and holds the documented “snippets” that are used for a certain design/widget approach. If a new solution is needed (exception-cases are inevitable), the implementation needs to be added to the Pattern Library.
  
 Takeaways
  - Every style has its purpose
  - Great designers know which style they’re using
  - Great designers use the same style for the entire project
  - Great teams ensure everyone uses the same style
  - The more advanced the style, the more expensive 
 - Agencies can’t go beyond Genius Design
  - Activity-focused & Experienced-focused must be done in-house
  
   - The more advanced the style, the better the design
  - Techniques and tricks are more effective than methodologies and dogma