The project is about the investigation on Document-Based databases, their evaluation criteria and use cases regarding requirements management, SW architecture and test management to set up an (ESLM) Embedded Systems Lifecycle Management tool. The current database used in the ESLM is a graph database called Neo4j, which meets the needs of the current system. The result of studying Document databases turned to the decision of not using a Document database for the system. Instead regarding the requirements, a combination of Graph database and Document database could be the practical solution in future.