Explanation
A trainer is a role that works with the project team to understand the deliverables and then teaches the users of the deliverables how to utilize the project's product. A trainer is responsible for designing, developing, and delivering training programs and materials that enable the users to learn and apply the skills and knowledge required to use the project's product effectively and efficiently. A trainer also evaluates the effectiveness and outcomes of the training programs and provides feedback and support to the users and the project team12. An end user is a role that uses the project's product to perform their tasks or functions. An end user is the ultimate beneficiary of the project's product, and their needs and expectations are the primary drivers of the project's requirements and scope. An end user also provides feedback and input to the project team throughout the project lifecycle, and participates in testing and validating the project's product13. A database analyst is a role that designs, develops, and maintains the database systems and structures that store and manage the data and information for the project's product. A database analyst is responsible for analyzing the data and information requirements and specifications, creating and modifying the database schemas and models, ensuring the data quality and integrity, and optimizing the database performance and security14. A stakeholder is a role that has an interest or influence in the project or the project's product. A stakeholder can be an individual, group, or organization that is affected by or can affect the project's outcomes and objectives. A stakeholder can have different roles and responsibilities in the project, such as a sponsor, a customer, a supplier, a regulator, a team member, or a subject matter expert15. References:
CBAP Handbook
Trainer - iiba.org
End User - iiba.org
Database Analyst - iiba.org
Stakeholder - iiba.org