Systems and methods are provided for the provision of data for transmission and/or storage, the transmission and storage of data, and, more particularly, to data coding for transmission and/or storage and to decoding of received and/or accessed or retrieved coded data. In an embodiment of the invention, data is assembled into coded data structures comprising a plurality of fields that, e.g., may contain actual or implied field values, and data associated therewith that relates to the plurality of fields. Encoding and decoding of the data may take place with reference to one or more associated data models, and a coded data structure according to this embodiment may contain content only (field values and data identifying the structure). This allows for a reduction in size of the data structure as compared to, e.g., a data structure comprising program code or all data needed to describe the data in the data structure.