Question

What is a participation role? State the circumstances under which the use
of role names becomes necessary in description of relationship types.

Answer 1

Participation role is an integral part of relationship where an entity participates in it. The circumstances are provided below.

Explanation:

Participation role is an integral part of relationship where an entity participates in it. There can be different roles in a relationship type that is why, it is necessary to use name of the roles who are participating in a relationship type.

The circumstances in which the use of role names becomes important in the description of the relationship types are as follows:

i. The role names represent the role that a particular entity is playing in the relationship type.

ii. It shows the responsibilities of both the document creator and created.