Purpose of this Document

The purpose of this document is to present a standard methodology for measuring and calculating availability and degradation for IFE systems. The focus is to establish a standard method of evaluating IFE failure information and converting it into a quantitative measurement of the quality of service provided by the IFE system to the passenger. The topics used to establish this method are as follows:

a. The definition of Availability and Degradation

b. The definition of a Failure

c. The Data Collection Method

d. Minimum Criteria of Data Samples

e. Examples of Terminology