What strategies or techniques do logo designers employ to ensure their designs are adaptable and scalable for various mediums and applications, while still maintaining their visual integrity and brand coherence?

ANSWER: Logo designers ensure adaptability and scalability by creating simple, versatile designs with limited colors and clean lines. They often start with vector graphics for lossless scaling and test logos across different sizes and applications. They also create responsive logo versions to maintain integrity across mediums, considering the context and maintaining a consistent color palette and design elements to preserve brand coherence.