IAS 23 (revised March 2007) uses the following terms with the meanings specified :
Borrowing costs are interest and other costs that an entity incurs in connection with the borrowing of funds.
A qualifying asset is an asset that necessarily takes a substantial period of time to get ready for its intended use or sale.
An entity shall capitalize borrowing costs that are directly attributable to the acquisition, construction or production of a qualifying asset as part of the cost of that asset. An entity shall recognize other borrowing costs as an expense in the period in which it incurs them (par. 8).
To the extent that an entity borrows funds specifically for the purpose of obtaining a qualifying asset, the entity shall determine the amount of borrowing costs eligible for capitalization as the actual borrowing costs incurred on that borrowing during the period less any investment income on the temporary investment of those borrowings (par. 12).
Read more in here : The Core Principles of IAS 23 Borrowing Costs

