UI Prototyping The following slides contain : 1. Initial sketches (drawn on paper and quickly iterated) as a result of the discussion with client representatives. 2. More detailed prototypes (done on photoshop / powerpoint) generated for user reviews These were done as a result of direct interaction with users of The Boston Consulting Group, a major consulting company at the client site in Frankfurt and later handed over to visual design team. Decisions on interaction design samples were also made.