A Framework for Social Device Networking Dina Hussein, Son N. Han, Xiao Han, Gyu Myoung Lee, Noel Crespi Department of Wireless Networks and Multimedia Services Institut Mines-Telecom, Telecom SudParis 91011 Evry Cedex, France {dina.hussein, son.han, han.xiao, gm.lee, noel.crespi}@it-sudparis.eu Abstract—The concept of connectivity, as inspired by Social Networking Service, is a key factor which participates in changing the way people interact with each other over the Internet. On the other hand, connected world as envisioned by the Internet of Things aims to expand the idea of connectivity to include everything in the physical world to a big network called the Internet. In order to realize the integration between the world of connected people and the world of connected devices, intelligence including semantics and recommendation acts as a major factor in expanding the basic communication functionalities to include search, discovery, mashup of new services and filtering. We propose a framework to facilitate the next generation of commu- nication between people and devices, and a preliminary prototype including three modules DPWSim, ThingsGate, ThingsChat along with a use case discussion. Keywords—SNS; internet of things; DPWS I. I NTRODUCTION Social Networking Service (SNS) since its proliferation has evolved rapidly bringing a new trend in social interactions. SNS has emerged as an inter-connectivity forum facilitating and encouraging individuals to stay in touch with their own network of friends/acquaintances and also provide means to widen this network. With the rich contextual information provided by SNS as rich user profiles containing users’ prefer- ences, list of friends, etc., the concept of sharing is considered one of the basic cornerstones in the formation and expansion of SNS. A rich set of resources in textual and multimedia formats can be easilyand almost instantly disseminated across interrelated communities of individuals. All those features of SNS have been helping to change social interaction over the Internet, from enhancing the way we reach information to enhancing the way we reach for each other. This paper proposes an infrastructure to expand the social interaction among us to include our devices too. Is it possible to be connected with my colleagues at the office and with the coffee machine we share at the same time? The prevalence of mobile devices came then to harness the success of SNS, the former greatly helps to answer two kinds of questions Where are you now? and What’s happening? [2]. Mobile devices, most commonly smartphones with their embedded sensing and geo-location capabilities made it very easy to provide answers to these questions, sharing them among a network of interested friends and hence maintain the concept of inter-connectivity as brought by SNS. And even beyond the network of people, this concept of inter- connectivity can be applied for connected smart devices which are storming in recently. According to Cisco CTO Padmasree Warrior, more than 1 trillion devices, or 140 devices per person, are going to be connected to the Internet in the year of 2013. Many of them have made their debuts in the recent International Consumer Electronics Show (CES) 2013 such as a door lock controlled by smartphone or a car started remotely via wireless connection or medical devices such as smart-home thermostat, smart scale, etc. This trend is recently mentioned by the media as connected world or connected revolution. It is about the shift toward the post-mobile devices era, in which, not only smartphones are concerned but also any other devices with sensing capabilities, connection to the Internet can communicate with others or even with people. These devices help people to connect with device through Internet to improve their physical life with the smart adaptability to environment context. Besides, the Internet of Things (IoT) paradigm [4] is driving us toward a connected future with ubiquitous com- puting behind. Thanks to efforts from academia and industry, we can now afford inexpensive sensors, low-power wireless communication protocols, which make it possible for sensing the physical world and communicating it to the Internet. Our research presented here is motivated by the idea of utilizing the social interaction between people represented through SNS for devices world. As aforementioned, these de- vices could be in any type of devices with sensing capabilities, connection to the Internet which enables them to communicate with other devices or even with people. We propose a frame- work to establish such communication between people and devices using embedded Web Service technology. This frame- work consists of four layers: Device Layer for implementing and exposing Web services, Service Layer for encapsulating device functionalities into Social Device API to help Web applications to communicate with devices, Intelligence Layer to realize the semantic search and recommendation, and the Socialization Layer with a SNS providing interfaces using Social Device Application Programming Interface (API) to bring devices into SNS environment. The rest of the paper is organized as follows. A use case initiating discussion and raising some research issues is presented in the next section. In section III, we go through the state-of-the-art technologies. Our proposed framework arrives in section IV. In section V, we provide a preliminary prototype of the framework and finally, the conclusion and future work take place in section VI. II. USE CASE SCENARIO Nadia is living with her elderly mother Aisha. Imagine a normal day for both of them, Nadia kisses her mother goodbye and heads to work. She is having a meeting at 9:30 AM. On her way to her office, she receives SNS notification on her