Construction covers a range of activities so vast it makes composing a single all-encompassing definition of construction a bit of a challenge. The construction process itself represents a network of transactions that can be as complex as the project being undertaken. In national income accounts, construction appears twice - first as a component of capital formation and second as one of the major industries. In the Annual Survey of the Philippine Business and Industry, a construction establishment is defined in the context of a contractor. Yet, these definitions fall short in giving a comprehensive picture of the actual total contribution of construction to production and income, underscoring the construction industry’s enormous diversity: it is large in size; dispersed by geography and product-type; dependent on labor, materials and other inputs which are also widely used by other producing sectors; and associated with numerous auxiliary industries.