G.J.N.M. (Guido) Chorus, Y.H.C. (Yves) Janse, S.J.B.A. (Stijn) Hoppenbrouwers, C.J.P. (Chris) Nellen, and H.A. (Erik) Proper. Technical report: ICIS-R07006, February, 2007. This technical report is the result of two experiments conducted as part of an ongoing research effort to formalize architecture principles. The experiment involves a first, and modest, evaluation of the use of ORM and ORC as a means to formalize and ground architecture principles. The experiments involve the evaluation of the use of ORM and ORC to formalize the example principles provided by the TOGAF (The Open Group Architecture Framework) and principles taken from industrial practice.