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Software Platforms for Smart Cities: Concepts, Requirements, Challenges, and a Unified Reference Architecture

Eduardo Felipe Zambom Santana, Ana Paula Chaves, Marco Aurelio Gerosa, Fabio Kon, Dejan Milojicic

TL;DR

Smart City platforms act as integrated middleware enabling scalable, interconnected city applications. The paper surveys 23 platforms to identify core enabling technologies—IoT, Big Data, Cloud Computing, and CPS—and derives a unified reference architecture to guide future development. It catalogs functional and non-functional requirements, highlights privacy, heterogeneity, and testbed challenges, and shows how the architecture can support data-driven city services. The proposed unified architecture offers a practical blueprint for developers, city managers, and researchers to build interoperable, scalable Smart City ecosystems.

Abstract

Making cities smarter help improve city services and increase citizens' quality of life. Information and communication technologies (ICT) are fundamental for progressing towards smarter city environments. Smart City software platforms potentially support the development and integration of Smart City applications. However, the ICT community must overcome current significant technological and scientific challenges before these platforms can be widely used. This paper surveys the state-of-the-art in software platforms for Smart Cities. We analyzed 23 projects with respect to the most used enabling technologies, as well as functional and non-functional requirements, classifying them into four categories: Cyber-Physical Systems, Internet of Things, Big Data, and Cloud Computing. Based on these results, we derived a reference architecture to guide the development of next-generation software platforms for Smart Cities. Finally, we enumerated the most frequently cited open research challenges, and discussed future opportunities. This survey gives important references for helping application developers, city managers, system operators, end-users, and Smart City researchers to make project, investment, and research decisions.

Software Platforms for Smart Cities: Concepts, Requirements, Challenges, and a Unified Reference Architecture

TL;DR

Smart City platforms act as integrated middleware enabling scalable, interconnected city applications. The paper surveys 23 platforms to identify core enabling technologies—IoT, Big Data, Cloud Computing, and CPS—and derives a unified reference architecture to guide future development. It catalogs functional and non-functional requirements, highlights privacy, heterogeneity, and testbed challenges, and shows how the architecture can support data-driven city services. The proposed unified architecture offers a practical blueprint for developers, city managers, and researchers to build interoperable, scalable Smart City ecosystems.

Abstract

Making cities smarter help improve city services and increase citizens' quality of life. Information and communication technologies (ICT) are fundamental for progressing towards smarter city environments. Smart City software platforms potentially support the development and integration of Smart City applications. However, the ICT community must overcome current significant technological and scientific challenges before these platforms can be widely used. This paper surveys the state-of-the-art in software platforms for Smart Cities. We analyzed 23 projects with respect to the most used enabling technologies, as well as functional and non-functional requirements, classifying them into four categories: Cyber-Physical Systems, Internet of Things, Big Data, and Cloud Computing. Based on these results, we derived a reference architecture to guide the development of next-generation software platforms for Smart Cities. Finally, we enumerated the most frequently cited open research challenges, and discussed future opportunities. This survey gives important references for helping application developers, city managers, system operators, end-users, and Smart City researchers to make project, investment, and research decisions.

Paper Structure

This paper contains 32 sections, 10 figures, 5 tables.

Table of Contents

  1. Introduction
  2. Main Concepts
  3. Smart Cities
  4. Enabling Technologies
  5. Cyber-Physical Systems
  6. Internet of Things
  7. Big Data
  8. Cloud Computing
  9. Platforms for Smart Cities
  10. Platform Categories
  11. Internet of Things and Cloud Computing
  12. Internet of Things, Cloud Computing, and Big Data
  13. Cloud Computing and Big Data
  14. Cloud Computing
  15. Cloud Computing and Cyber-Physical Systems
  16. ...and 17 more sections

Figures (10)

  • Figure 1: Smart Cities initiatives covered in this survey.
  • Figure 2: Platforms for Smart Cities Enabling Technologies
  • Figure 3: 4 Vs of Big Data
  • Figure 4: Trends in Smart City related terms
  • Figure 5: Use of Enabling Technologies by Smart City Platforms
  • ...and 5 more figures