Define the viewing context
Begin with the intended audience, viewing distance, ambient light and the purpose of the content. Record these as requirements to discuss, rather than assuming a particular product specification.
Plan the content journey
List the formats you need to display and how often content changes. Clarify who prepares, approves and updates each asset. Installation, operation and support requirements can then be reviewed together.
Agree on acceptance
Before procurement, confirm the actual model, dimensions, supported interfaces, certifications if applicable and acceptance criteria in writing. No product specifications are supplied by this article.