Record Tree

Introduction

For DigiHaven we have introduced a record tree with metadata inheritance, where metadata is inherited from the top of the tree to the children below. For MediaHaven 2.0 will be gradually moving from a partial structure to a full tree structure with representations as for DigiHaven as shown in the trees below.

Tree

The diagrams below show the organisation of the record in applications DigiHaven and MediaHaven. In Use Cases we describe additional examples of trees.

Sections

The tree has 4 large sections as detailed in https://mediahaven.atlassian.net/wiki/spaces/CS/pages/3400007723/Record+Tree+Glossary#Term%3A-Structure

Glossary

Record Tree Glossary

Business Logic

• A record can have

  • no parent

    • top record such as a Series or Classification

    • orphaned record which can later be adopted.

  • exactly one parent

• No loops are allowed within the tree

  • A record cannot be parent or child of itself

  • A record cannot be adopted by one of its (grand)children or (grand)parents

Inheritance

• Metadata field definitions can be marked as inheriting.

• When a record is created or adopted under a parent record, the inheriting metadata fields will be copied from the parent to the child record

• When the metadata changes of a parent record then the changes made to inheriting metadata fields will propagate to its children asynchronouslyCodes.Series:3e3b17...