total of necessarily incurred labour, material and other related costs incurred to retain a construction works or its parts in a state in which it can perform its required functions

total of necessarily incurred labour, material (ISO 6707-1:2014, 6.1.1) and other related costs (ISO 6707-1:2014, 9.3.85) incurred to retain a building (ISO 6707-1:2014, 3.1.3)(3.1.10) or its parts in a state in which it can perform its required functions (3.1.43)

combination of all technical and management actions intended to retain an item in, or restore it to, a state in which it can perform as required

combination of all technical and associated administrative actions during the service life (3.1.113.1)(3.1.113.2) to retain a building, or its parts, in a state in which it can perform its required functions (3.1.43)

monetary value of resources consumed to perform activities

of resources consumed to perform activities

cost for a substance that enters and/or leaves a quantity centre

cost incurred in the course of in-house handling of the material flows, except for material cost, energy cost and waste management cost

initial construction costs (ISO 6707-1:2014, 9.3.85) and the costs of initial adaptation where these are treated as capital expenditure

indirect attribution of a cost (3.12.29) between different objects, such as a product (3.5.12) or process (3.1.9), by using an appropriate apportionment basis