Engineering Pervasive Service Ecosystems

Abstract

Emerging pervasive computing services will typically involve a large number of devices and service components cooperating together in an open and dynamic environment. This calls for suitable models and infrastructures promoting spontaneous, situated, and self-adaptive interactions between components. SAPERE (Self-Aware Pervasive Service Ecosystems) is a general coordination framework aimed at facilitating the decentralized and situated execution of self-organizing and self-adaptive pervasive computing services. SAPERE adopts a nature-inspired approach, in which pervasive services are modeled and deployed as autonomous individuals in an ecosystem of other services and devices, all of which interact in accord to a limited set of coordination laws, or eco-laws. In this article, we present the overall rationale underlying SAPERE and its reference architecture. We introduce the eco-laws-based coordination model and show how it can be used to express and easily enforce general-purpose self-organizing coordination patterns. The middleware infrastructure supporting the SAPERE model is presented and evaluated, and the overall advantages of SAPERE are discussed in the context of exemplary use cases.

A survey of autonomic computing methods in digital service ecosystems

“…• SAPERE [15][16][17][18][19][20] • CASCADAS [21][22][23] • BIONETS [24][25][26][27] • service reconfiguration for service ecosystems [80]. Figure 5 and Table 3 provide a comparison of these four primary methods.…”

“…In [15][16][17][18][19][20], the authors propose a nature-inspired reference architecture called SAPERE (Self-Aware Pervasive Service Ecosystems), which can be a useful guide in the design and implementation of self-adaptive pervasive service ecosystems. They identify several research challenges emerging from the convergence of cyber-physical worlds, such as comprehensive situation-awareness, top-down vs. bottom-up design, power of masses, decentralized control, and diversity and evolvability [19].…”

“…The authors' method has matured and evolved in many research papers [15][16][17][18][19][20]. The middleware implemented has been validated in the context of exemplary use cases on information and guidance services in a smart museum.…”

“…In recent years, several methods and techniques have been proposed to exploit the benefits of the AC initiative in service-oriented ecosystems, for example, SAPERE [15][16][17][18][19][20], CASCADAS [21][22][23] and BIONETS [24][25][26][27]. However, very little work has applied the AC initiative in the DSEs domain [28][29][30].…”

A Synergy of Semantic and Context Awareness for Service Composition in Ubiquitous Environment

“…In their work (Cabri et al, 2016), they explored how services can be composed in a user-aware way. To this purpose, they rely on the SAPERE middleware infrastructure (Castelli et al, 2015), which enables a dynamic and adaptive composition of services based on flexible nature-inspired rules. In their late work Cabri et al (Cabri2 et al, 2016) proposed to extend the previous approach by considering also semantic techniques and simple collaboration aspects.…”