Atomic Schema is the proposed standard for specifying classes, properties and datatypes in Atomic Data. You can compare it to what XSD is for XML. Atomic Schema deals with the
This section will define various Classes, Properties and Datatypes (discussed in Atomic Core: Concepts).
- Typed: Every Atom of data has a clear datatype.
- IDE-friendly: You should not have to type full URLs - the schema sets shortnames.
- Self-documenting: When seeing a piece of data, simply following links will explain you how the model is to be understood. This removes the need for (most of) existing API documentation.
- Performant: Datatypes can have a binary representation for optimal storage, communication, serialization and parsing efficiency.
- Extensible: Anybody can create their own Datatypes, Properties and Classes.
- Accessible: Support for languages, easily translatable. Useful for humans and machines.
- Atomic: All the design goals of Atomic Data itself also apply here.
- Self-describing: Atomic Schema is to be described as Atomic Data using Atomic Schema.
In short, Atomic Schema works like this:
The Property field in an Atom links to a Property Resource. It is important that the URL to the Property Resource resolves. This Property does three things:
- it tells something about its semantic meaning, and links to a Datatype.
- it links to a Datatype or Class, which indicates which Value is acceptable.
- it provides a Shortname, which is used for ORM.
DataTypes define the shape of the Value, e.g. a Number (
124) or Boolean (
Classes are a special kind of Resource that describe an abstract class of things (such as "Person" or "Blog").
Classes can recommend or require a set of Properties.
They behave as Models, similar to
struts in C or
interfaces in Typescript.
A Resource could have one or more classes, which could provide information about which Properties are expected or required.