Make the choices understandable.
Turn a catalog into a sequence a customer can follow.
Order choices by dependency
A footprint can affect roof options; a glazing choice can affect the available side layout. Gather these dependencies first, then use them to define a natural order. Customers should not have to undo several choices after selecting one incompatible extra.
Explain an unavailable option
If a choice cannot be combined with the current dimensions, say why. Product rules should guide the decision, with meaningful units and clear labels, rather than leave the customer guessing at a disabled control.
Keep a useful summary visible
Show the current product, dimensions, finish, and extras as the customer explores. A summary helps them compare revisions and gives the sales team a shared starting point when the enquiry arrives.
Which decision should a customer make first, and why?
Discuss this with a product specialist and a salesperson. Write down one decision your team can agree on before moving to the next lesson.