The area of the UK site was severely constrained and the design was challenging.

Subtle design and messaging challenge the user to make her own connections instead of spelling out every detail.

When a couture garment is made of unusual material, or has extreme proportions, the design may challenge the sewer's engineering knowledge.

Additionally, planning and design of quantification studies can be technically challenging due to the existence of numerous sources of variation including template concentration and amplification efficiency.

The design of the gudgeon pin, especially in the case of small, high-revving automotive engines is challenging.

Challenging to break into that market is the print campaign for OP, which consists of five bold ads that reflect the aesthetics of the sleek OP frosted glass bottle's graphic designs.

Its design and construction will challenge your inventive ability.

A critical design will often challenge its audience's preconceptions and expectations thereby provoking new ways of thinking about the object, its use, and the surrounding environment.

New techniques and designs in high-energy astronomy spacecraft are challenging the traditional operation of the IPN.

The design of new goods and the process of coating them with stronger, brighter, more emotion-packed psychological connotations, however, will challenge the ingenuity of tomorrow's best and most resourceful entrepreneurs.