Relationships of Jira

Issue type

• When a issue type is created, it is put into default issue type schema by default.
• issue types has schema. Here I call it issue_type_schema.

Issue type schema

• issue_type_schema is a group of issue types.
• issue_types_schema can be assigned to many projects, but a project can only has one issue_types_schema.

Project

• You can pick only one issue_type_schema for a project.

Issue status

• Issue status is an attribute of issue. E.g: Backlog, In progress or Done are some of the predefined issue statuses.

Workflow

• A workflow is a group of issue statuses. E.g: You can define a custom workflow only contains these three issue statuses.
• Jira has some predefined workflows.

Issue statuses are finally assigned to an issue type by assigning workflow to that issue type in a project (must under a project).

Marketplace apps

Time in status

• After you click install, it will ask you that it want to get some permissions from you.
• After installed, a post page will display.