Banca de DEFESA: PAULO LEONARDO SOUZA BRIZOLARA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : PAULO LEONARDO SOUZA BRIZOLARA
DATE: 30/05/2022
TIME: 08:30
LOCAL: Videoconferência
TITLE:

Heterogeneity in Discovery Systems: Survey e Uma Solução Descentralizada para Descoberta Integrada

KEY WORDS:

Service Discovery, Resource Discovery, Heterogeneity

PAGES: 192
BIG AREA: Ciências Exatas e da Terra
AREA: Ciência da Computação
SUBÁREA: Metodologia e Técnicas da Computação
SPECIALTY: Engenharia de Software
SUMMARY:

In distributed systems, the first step to establish communication with another device is to know its address, that is, to locate it. To locate services or resources automatically, discovery systems have been applied to diverse environments and usage contexts, from wireless sensor networks (WSNs) and peer-to-peer systems, to high processing clusters and cloud systems. The great diversity among usage contexts and application needs has led to the development of specialized discovery protocols, often incompatible with each other. This incompatibility prevents discovery across heterogeneous environments or protocols, restricting the services accessible to a given device. Therefore, to address these limitations, it is necessary to provide discovery solutions that integrate heterogeneous discovery environments and protocols. This in turn requires understanding: in which aspects these environments and protocols vary, and also what aspects they have in common. To address this issue, this paper presents a review of secondary studies from the literature which address service discovery and resource discovery across different environments, i.e. a tertiary study on the topic. Based on this review, a solution was developed to integrate the service discovery across heterogeneous discovery environments and protocols. A proof-of-concept of this solution was implemented, along with two discovery mechanisms: one to local service discovery and the other to decentralized discovery over the Internet. To evaluate the feasibility of the solution and analyze how these mechanisms interact with each other, a controlled experiment was conducted in a virtual network environment. Despite limitations and challenges that still remain, this research can contribute to the understanding of discovery systems, in what they have in common and in their points of variation, and move towards the “universal discovery” of services, which may allows the construction of new kinds of applications.

BANKING MEMBERS:
Presidente - 1356585 - LEONARDO CUNHA DE MIRANDA
Interno - 2316877 - EVERTON RANIELLY DE SOUSA CAVALCANTE
Interna - 1882699 - MONICA MAGALHAES PEREIRA
Externo à Instituição - JULIO CESAR DOS REIS - UNICAMP