(1) Process of conceiving, defining, expressing, documenting, communicating, certifying proper implementation of, maintaining and improving an architecture throughout a system’s life cycle (ISO/IEC/IEEE 2011)
(2) The architecting(Rechtin 1990)
(1) ISO/IEC/IEEE. 2011. Systems and software engineering - Architecture description. Geneva, Switzerland: International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC)/Institute of Electrical and Electronics Engineers (IEEE), ISO/IEC/IEEE 42010.
(2) Rechtin, E. 1990. Systems Architecting: Creating & Building Complex Systems. Upper Saddle River, NJ, USA: Prentice-Hall.