After years of adding features, DoubleClick's web-based software suite was inconsistent and unwieldy. DoubleClick hired Swim to implement a user-centered design program aimed at improving their product's ease-of-use. Swim evaluated the current offering, observed and interviewed users and stakeholders, built and informally tested design prototypes, and ultimately provided a complete design specification. Swim's new interface provides a modern look-and-feel, that clearly communicates product capabilities and establishes an extensible framework for DoubleClick to build upon.