Psychiatry today faces an inherent crisis in diagnostic procedure. An increasing number of specialized subdisciplines (biochemistry, genetics, neurology, psychoanalysis, group theories and cultural theories) develop separate theoretical and practical frameworks for diagnosis and treatment, thus increasing the risk of fragmented and adverse definitions of "psychiatric problems" and their "treatment". The paradox being that specialized precision in each field in fact prevents the possibility of comparing and ordering data from different disciplines.

Using the DSM diagnosis "Reactive Attachment Disorder" as an example, the author discusses the problems of transferring data from one discipline to another without losing validity, and suggests a hypothetical systemic model and method for ordering data into a meta-theoretical framework.

Cross-scientific diagnostic procedures should include: Simultaneity in observation - identity of system-descriptive terms - common denominators for time/space/mass differences between observation points.