Recognition and Measurement: Present Value of Defined Benefit Obligations and Current Service Cost :
The ultimate cost of a defined benefit plan may be influenced by many variables, such as final salaries, employee turnover and mortality, medical cost trends and, for a funded plan, the investment earnings on the plan assets. The ultimate cost of the plan is uncertain and this uncertainty is likely to persist over a long period of time. In order to measure the present value of the post employment benefit obligations and the related current service cost, it is necessary to:
(a) apply an actuarial valuation method (see paragraphs 65-67);
(b) attribute benefit to periods of service (see paragraphs 68-72); and
(c) make actuarial assumptions (see paragraphs 73-91).