“…WBSs usually take as their starting points the activities to be conducted, but they may also use the deliverables/products of the project as their points of departure. Jung and Woo (2004) refer to the International Organization for Standardization (ISO), which defines eight classification classes (facets) of construction information: facilities (e.g., factory, hospital), spaces (e.g., recreations spaces, office spaces), elements (e.g., foundations, exterior walls), work sections (e.g., excavation, cast-in-place concrete), construction products (e.g., steel bars, paint), construction aids (e.g., scaffolding, tools), management (e.g., contracts, cost control) and attributes (e.g., size, weight). Risk breakdown structures can be divided into the management risk area (risks that can be controlled by the organization), the external risk area (risks that originate from factors beyond the control of the organization) and the technology risk area (risks that are inherent in the technology and processes used).…”