The Four Pillars of Configurable Content

This document describes private, public, appdata and userdata content repositories and their relevance in content creation pipelines.

Copyright and Language can be found in RFC1

Change Process

This document is governed by the Consensus-Oriented Specification System (COSS).


To enable a logical separation of all content imaginable into four distinct layers; private, public, appdata and userdata.

Digital content creation pipelines are all about data. data crafted by users in various applications. In such an environment, data is either private to each user or public and discoverable to all. Configuration of applications is referred to as appdata and per-user configuration as userdata.

For further definition of private versus public, head over to RFC9.