Multi-Level Modeling with DMLA: A Contribution to the MULTI Warehouse Challenge

This paper presents a contribution to the MULTI 2023 Warehouse Challenge issued to assess the capabilities and limits of multi-level modeling approaches and to foster discussion in the community. The challenge specifies a warehouse that contains product specifications and product copies that can have different features at different abstraction levels. The solution was developed using the Dynamic Multi-Layer Algebra (DMLA), a multi-layer modeling approach. First, we briefly introduce DMLA and the background of the challenge. Then, we discuss our interpretation of the challenge requirements, present our model and analyze how it fulfills the requirements of the challenge. Finally, we discuss the merits and limitations of the solution and the mandatory discussion aspects of the challenge.