Requirements document relations

Abstract Relations between requirements are part of nearly every engineering approach. Yet, relations views, such as documents, scarcely considered. This is remarkable documents and their structure a key factor in reuse, which still challenging. Explicit formalized can help to ensure consistency, improve completeness, facilitate review activities general. For example, this relevant space engineering, where many challenges related complex document dependencies occur: 1. Several contractors contribute project. 2. Requirements from standards have be applied several projects. 3. previous phases reused. We exploit the concept “layered traceability”, explicitly considering views on sets individual specific traceability all these representation layers. Different types investigated with special focus requirement reuse through an Object-Role Modelling (ORM) conceptual model. Automated analyses graphs based model able reveal inconsistencies. show examples queries Neo4J/Cypher for EagleEye case study. work aims step toward better support handle highly large projects enable automated quality checks dependent reviews.