.. glossary:: Kinto-Core HTTP API A system of rules that explains the way to interact with the HTTP API :term:`endpoints` (utilities, synchronization, headers etc.), and how data is organized (JSON responses etc.). CRUD Acronym for Create, Read, Update, Delete endpoint endpoints An endpoint handles a particular HTTP verb at a particular URL. extensible «Extensible» means that the component behaviour can be overriden via lines of code. It differs from «:term:`pluggable`». Firefox Accounts Account account system run by Mozilla (https://accounts.firefox.com). HTTP API Multiple publicly exposed endpoints that accept HTTP requests and respond with the requested data, in the form of JSON. KISS «Keep it simple, stupid» is a design priciple which states that most systems work best if they are kept simple rather than made complicated. pluggable «Pluggable» means that the component can be replaced via configuration. It differs from «:term:`extensible`». resource A resource is a collection of records. A resource has two URLs, one for the collection and one for individual records. user id user identifier user identifiers A string that identifies a user. When using the built-in *Basic Auth* authentication, *Kinto-Core* uses cryptography (HMAC) to generate an identification string. See `Pyramid authentication`_. object objects Also refered as «records», objects are stored by *Kinto-Core* resources. tombstone tombstones When a record is deleted in a resource, a tombstone is created to keep track of the deletion when polling for changes. A tombstone only contains the ``id`` and ``last_modified`` fields, everything else is really deleted. principal principals An entity that can be authenticated. Principals can be individual people, computers, services, or any group of such things. permission permissions An action that can be authorized or denied. read, write, create are permissions. Semantic Versioning A standard MAJOR.MINOR.PATCH versioning scheme. See http://semver.org/. ACE ACEs Access Control Entity An association of a principal, an object and a permission. For instance, (Alexis, article, write). ACL ACLs Access Control List A list of Access Control Entities (ACE).