Proposed Domain-specific Metamodels for MDDPlatform

This document is supplementary material accompanying the paper titled "Microservice-based model-driven architecture for implementing modeling and model-transformation as a service". This document introduces a set of domain-specific metamodels designed for MDDPlatform at different levels of abstraction, including CRAC, CIM, Core Domain, Domain Services, CQRS, API Controllers, Repositories, C# Classes and Interfaces, and Project Settings. Each metamodel captures a perspective necessary to manage complexity in modeling and supports scalable software development.