# Data Management in Industry 4.0: State of the Art and Open Challenges

## TL;DR

This paper surveys the current state of data management in Industry 4.0, highlighting recent technological advances, architectural designs, and open challenges across industrial automation layers.

## Contribution

It provides a comprehensive taxonomy of recent industrial data enabling technologies and identifies key open research challenges for future development.

## Key findings

- Taxonomy of industrial data enabling technologies
- Analysis of industrial architectural designs and data management philosophies
- Identification of open research challenges in Industry 4.0 data management

## Abstract

Information and communication technologies are permeating all aspects of industrial and manufacturing systems, expediting the generation of large volumes of industrial data. This article surveys the recent literature on data management as it applies to networked industrial environments and identifies several open research challenges for the future. As a first step, we extract important data properties (volume, variety, traffic, criticality) and identify the corresponding data enabling technologies of diverse fundamental industrial use cases, based on practical applications. Secondly, we provide a detailed outline of recent industrial architectural designs with respect to their data management philosophy (data presence, data coordination, data computation) and the extent of their distributiveness. Then, we conduct a holistic survey of the recent literature from which we derive a taxonomy of the latest advances on industrial data enabling technologies and data centric services, spanning all the way from the field level deep in the physical deployments, up to the cloud and applications level. Finally, motivated by the rich conclusions of this critical analysis, we identify interesting open challenges for future research. The concepts presented in this article thematically cover the largest part of the industrial automation pyramid layers. Our approach is multidisciplinary, as the selected publications were drawn from two fields; the communications, networking and computation field as well as the industrial, manufacturing and automation field. The article can help the readers to deeply understand how data management is currently applied in networked industrial environments, and select interesting open research opportunities to pursue.