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Design practice takes the form of a project. Most often, it is not the only profession or discipline to contribute. In any design project, the use and handling of information are crucial. The support of information must accompany the dialog between trades. While technical drawing allows for exchange between the domains of design and those of engineering, it requires a degree of learning. The technical drawing is an intermediate object of codified design. It is assumed to have been learned in order to be understood. Design produces many information tools for the natural exchanges between trades (sketches, drawings, rough drafts, study models, appearance models). But, contrary to technical drawings, some uncertainty of interpretation may exist and foster misunderstandings. Explaining the design representation tools becomes a subject of interdisciplinary research by design. Sensory design has hybridized the sensory evaluation tools by orienting them within the design project. Some methodological tools illustrate what kind of research can be achieved by design.