From bf32608956cd28ff0bac00a04706084e776b1773 Mon Sep 17 00:00:00 2001
From: Kevin Frantz <mail@kevin-frantz.de>
Date: Wed, 12 Sep 2018 23:46:57 +0200
Subject: [PATCH] Updated requirements

---
 documentation/product/system/requirements.md | 84 ++++++++++++--------
 1 file changed, 51 insertions(+), 33 deletions(-)

diff --git a/documentation/product/system/requirements.md b/documentation/product/system/requirements.md
index 074ccce..d87f230 100644
--- a/documentation/product/system/requirements.md
+++ b/documentation/product/system/requirements.md
@@ -4,6 +4,8 @@ interpreted as described in [RFC 2119](https://tools.ietf.org/html/rfc2119).
 
 "entity" or "entities" are to be interpreted as [Doctrine Objects](https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/reference/working-with-objects.html).
 
+**Bold** words define a unique type.
+
 # requiremts
 
 ## interfaces
@@ -22,63 +24,80 @@ The application MUST provide the following functions:
 * login
 * logout
 
-A user MUST have one node.
+A **user** MUST have one **node**.
 
-A user MUST be a source.
+A **user** MUST be a **source**.
 
 ### law
-A law MUST belong exclusive to a node.
+A **law** MUST belong exclusive to a **node**.
 
-A law MUST contain one of each of right types one time.
+A **law** MUST contain one of each of **right** types one time.
 
 #### right
-A right MUST NOT be a source.
+A **right** MUST NOT be a **source**.
 
-A right MUST belong to a law.
+A **right** MUST belong to a **law**.
 
-A right MUST be of one of the following types:
+A **right** MUST be of one of the following types:
 * read
 * write
 * administrate
 
 #### permission
-A permission MAY have a father from which it inherit.
+A **permission** MAY have a father from which it inherit.
 
-A permission MUST belong to a right.
+A **permission** MUST belong to a **right**.
 
-A permission MUST allow blacklisting.
+A **permission** MUST allow blacklisting.
 
-A permission MUST allow whitelisting.
+A **permission** MUST allow whitelisting.
 
-A permission MUST allow that it applies to child of collection.
+A **permission** MUST allow that it applies to the parent **relative collection** s of the rule set.
 
-A permission MUST allow that it applies to the parents of the collection.
+A **permission** MUST allow that it applies to the child **relative collection** s of the rule set.
 
-A permission MUST contain a collection on which the rule set applies.
+A **permission** MUST contain a **collection** on which the rule set applies.
 
 ### node
-A node MUST have one source.
+A **node** MUST have one **source**.
 
-A node MAY contain a parents collection.
+A **node** MUST contain a parent **relative collection**.
 
-A node MAY contain a children collection.
+A **node** MUST contain a children **relative collection**.
 
-A node MAY be a member of a collection entity.
+A **node** MAY be a member of one or more **relative collection** s.
 
-A node MUST have a law.
+A **node** MAY be a member of one or more **collection** entity.
 
-A node MUST have a history.
+
+A **node** MUST have a **law**.
+
+A **node** MUST have a **history**.
+
+#### relative collection
+
+A **relative collection** MUST belong to a **node**.
+
+A **relative collection** MUST contain **node** s.
+
+A **relative collection** MUST provide the following functions:
+* get all relatives
+* get specific relative
+* get relatives
+* get relatives of generation
 
 ### source
-A source MUST have one node.
+A **source** MUST have one node.
 
-A source MUST be an entity.
+A **source** MUST be an entity.
+
+A **source** MUST contain a file fabric.
 
 #### entities
 Sources MUST be on of the following entities:
 
 entity|attributes
---- | --- 
+--- | ---
 user|username,password,identity
 identity|names,addresses
 address|
@@ -90,11 +109,10 @@ text|text(varchar)
 collection|nodes
 live|birthday,death
 
-A source MUST have a file fabric.
+#### file
 
-#### files
+A **file** MUST be on of the following types:
 
-Sources MUST be on of the following files:
 * HTML
 * JSON
 * XML
@@ -102,18 +120,18 @@ Sources MUST be on of the following files:
 * CSV
 * JPG
 
-It SHOULD be possible to export a file to one or more other files.
+It SHOULD be possible to export a **file** to one or more other **file** s.
 
-It MUST be possible to edit a file.
+It MUST be possible to edit a **file**.
 
-IT MUST be possible to save a file.
+IT MUST be possible to save a **file**.
 
 #### collection
-A source MAY contain other nodes.
+A **source** MAY contain other **nodes**.
 
 ### history
-A history MUST log all of the actions which happen to a node.
+A **history** MUST log all of the actions which happen to a **node**.
 
-A history MUST exclusive belong to a node.
+A **history** MUST exclusive belong to a **node**.
 
-A history MUST allow to give the state of a node to a special date back.
+A **history** MUST allow to give the state of a **node** of a special date back.