1. layout 2. Scalar Properties 2.1. Simple Strings 3. Serialisation 3.1. Object Create 3.1.1. To a POJO 3.2.2. To a HDO 3.3.3. to XML 3.2. Object update 3.2.1. To a POJO 3.2.2. To a HDO 3.2.3. to XML