The showcase can attract attention without making the store offer understandable. Objects, colors and messages must be read together: the passerby has little time to interpret them. The objective depends on the commercial proposal and the environment in which it is presented.
I propose to choose a main idea and check which elements make it visible. A composition dedicated to an occasion of use can help the customer to imagine a pairing. Too much information can instead compete with each other and leave the message uncertain.
Evaluation should go beyond internal aesthetic judgment. Enquiries received, products sought after entry, and comments from passers-by may offer guidance. An increase in visits alone does not demonstrate an effect of the showcase, because other changes may have occurred in the same period.
A hypothetical example is a very visible presentation of a nearly sold-out product. Before maintaining it, it is necessary to understand whether the store can still respond to requests. The showcase belongs to the service: what it promises should find a match in the assortment and assistance. A regular review allows the story to be adapted to real availability and business priorities.