I was lead Interaction Designer for Digitas (New York) the roll-out of all but one of American Express’s credit card applications in 2010. I produced wireframes based on the required fields from the client, and existing designs from a prior team at Digitas.
I presented my work directly with owner representatives and off-shore development team to ensure compliance with requirements and feasibility.
The final result for one card application. The strategy was to simplify the card application process into three steps.
Several partner card applications required complex logic for displaying fields. Below is an example of conditional fields and the annotated logic which causes them to appear in a wireframe I created.