This paper focuses on the potential contributions of optimal test desi
gn models to practical test assembly issues. These issues result from
limitations in the models or the technology required for their impleme
ntation and limitations inherent in the test assembly process as it is
currently configured, regardless of whether tests are assembled by co
mputerized assembly algorithms or by experienced test specialists. Exp
lication of these issues helps identify future challenges for research
ers who may refine and enhance the models and for practitioners who ma
y integrate the models into their operational procedures.