From ResearchID.org

Process structuralism is a biological view that focuses on the architectures of organismic systems.

Richard Sternberg says of process structuralism:

I subscribe to a school of biological thought often termed “process structuralism.” Process or biological structuralism is concerned with understanding the formal, generative rules underlying organic forms, and focuses on the system architectures of organisms and their interrelationships. Structuralist analysis is generally ahistorical, systems-oriented, and non-evolutionary (not anti-evolutionary). Both creationism and neo-Darwinism are, in contrast, emphatically historicist with one positing extreme polyphyly (de novo creation of species) and the other radical monophyly (common descent). Since the structuralist perspective runs somewhat perpendicular to the origins debate, creationists and evolutionists tend to see it as inimical to their positions. The truth is structuralism has little at stake in the origins issue, leaving a person like myself free to dialogue with all parties. For this reason, I frequently discourse with ultra-Darwinians, macromutationists, self-organization theorists, complexity theorists, intelligent design advocates, theistic evolutionists, and young-earth creationists without necessarily agreeing with any of their views.

Structuralism does, however, provide an important perspective on the origins debate. Structuralists' lack of commitment to an historical theory of biology allows them to explore the historical evidence more objectively. Moreover, because they focus on formal analysis, struturalists are far more open than neo-Darwinians to the powerful evidence for continuity within species (forms) and discontinuity between and among species. They also allow themselves to wonder about the cause of the amazing repetition of forms across the biological world rather than being forced by prior commitments to accept a major neo-Darwinian epicycle known as "convergent evolution."