This volume presents the latest advancements in model and data engineering from the 4th International Conference, MEDI 2014. The proceedings compile 16 long papers and 12 short papers, alongside 2 invited talks, all rigorously selected from 64 submissions. The research spans critical areas including model engineering, data engineering, and the intersection of modeling with data management. Emphasis is placed on emerging trends and practical applications within these fields.

This collection of papers from MEDI 2014 offers a snapshot of current research in model and data engineering. The selection process, involving careful review of numerous submissions, suggests a focus on quality and relevance within the field. The inclusion of both long and short papers, alongside invited talks, indicates a comprehensive scope covering both established and emerging topics.