Comparing artifacts or products of civilizations to each other shows that how diverse historical nations made different decisions when confronted with the same challenges. This paper aims to investigate designers` solutions for tackling similar problems in neighboring civilizations, Helmand (Shahr-i-Sokhta) and Indus valley (Mohenjo-Daro), in a Same Period of Time. Research methods have been developed through the study in two steps. initially, after studying all the discovered seals from two civilizations, based on research hypothesis, comparing factors were defined based on three main product design dimensions (functional, aesthetic, symbolic), and 4 seals of each civilization were selected. Afterwards, similarity of Shahr-i-Sokhta and Mohenjo-Daro`s seals were evaluated via a sample group, including 34 Iranian industrial designers, as participants with a DbA (Design-by-Analogy) questionnaire. The results show that in the considered time period in both civilizations, the design focused on the form, aesthetic and the symbolic aspects more than the engineering considerations.
