What is the relationship between OAX and SOAX?
OAX is just a standard: it proposes a common representation of airlines business entities, data formats and service description to easyly connect different IS components. OAX can be implemented freely by any piece of software. SOAX are helper classes to deal with the OAX model and data formats (parsers, etc.). They help software developers to integrate the OAX specification and make sure that the cost to support OAX is almost nil.