Recommended Relationship Type

Correct Answer: C

Dataverse defines the two basic types of relationships between tables: One-to-Many (1:N) and Many-to-Many (N:N)

A One-to-Many relationship is a Parent-Child relationship, like between a company and multiple products that it supplies or one building blueprint that can be used for multiple cases.

It is a One-to-Many relationship for a Blueprints record.

For the related Cases record, this relation is Many-to-One.

When you create such a relationship between tables, the Dataverse automatically adds a Lookup column in a child or related table (Cases).

Option A is incorrect because Dataverse does not support the One-to-One (1:1) relationship between tables.

It provides only One-to-Many (1:N), Many-to-One (N:1), and Many-to-Many (N:N).

Option B is incorrect because the relationship is Many-to-One (N:1) from the Cases table side, and One-to-Many (1:N) relationship is from the Blueprints side.

Option D is incorrect because the Cases and Blueprints tables' relationship is Many-to-One (N:1) but not Many-to-Many (N:N).

For more information about the Dataverse types of table relationship, please visit the below URLs:

To determine the type of relationship between the Cases and Blueprints tables, we need to understand the nature of the data and the business requirements.

One-to-One (1:1) relationship: In a one-to-one relationship, each record in one table is related to one and only one record in the other table. This relationship is suitable when each case can have only one blueprint, and each blueprint can be used in only one case. However, this scenario is not common in business applications.

One-to-Many (1:N) relationship: In a one-to-many relationship, each record in the primary table (Cases) can have many related records in the related table (Blueprints). This relationship is suitable when each case can have multiple blueprints, but each blueprint is associated with only one case. This scenario is common in business applications, and it's the most recommended relationship type in the Power Platform.

Many-to-One (N:1) relationship: In a many-to-one relationship, many records in the related table (Blueprints) can be related to one record in the primary table (Cases). This relationship is suitable when each blueprint can be used in many cases, but each case is associated with only one blueprint. However, this scenario is not common in business applications.

Many-to-Many (N:N) relationship: In a many-to-many relationship, many records in one table can be related to many records in another table. This relationship is suitable when each case can have multiple blueprints, and each blueprint can be used in multiple cases. However, a many-to-many relationship cannot be created directly between two tables in the Power Platform, and it requires a junction table to implement.

Based on the given information, it seems that a one-to-many (1:N) relationship would be the most suitable option. Each case can have multiple blueprints, but each blueprint can be associated with only one case. This relationship type is easy to implement and commonly used in business applications.