Example of gender mainstreaming in two OECD countries (cont.) To that end, it uses the concept of indicators established by the OECD, defined as “parameter, or a value derived from parameters, that points to, provides information about and/or describes the state of a phenomenon and has a significance extending beyond that directly associated with given parametric value”. Developing the ability to track and appraise the implementation of certain action and to evaluate results is useful for reporting purposes - on execution and interim and ex-post evaluation.