scholarly journals MIDAS: A Middleware to Provide Interoperability between SaaS and DaaS

2016 ◽  
Author(s):  
Tarcio Marinho ◽  
Vinicius Cidreira ◽  
Daniela Barreiro Claro ◽  
Babacar Mane
Keyword(s):  
Cloud Computing ◽  
Case Studies ◽  
Software As A Service ◽  
The Other ◽  
Extra Time ◽  
Cloud Providers ◽  
Data As A Service

Software as a Service (SaaS) and Data as a Service (DaaS) proves to be two promising areas of research in the cloud computing field, however interoperability among different cloud providers is yet poorly explored. Today, clients looking for content or services from different providers need extra time and resources to learn and implement the required adaptations from the other parties. In this paper we propose MIDAS, a novel middleware to interoperate SaaS and DaaS services seamlessly and independently from provider. That is, SaaS applications will be able to get data from DaaS datasets by sending a query to our middleware and letting it mediate the communication and return the expected results. We evaluate our proposal by developing a prototype from two case studies and by analyzing the time effort to query through our middleware. Our results presented that no important overhead were required from providers nor to the final user.

scholarly journals Enhancing MIDAS towards a transparent interoperability between SaaS and DaaS

2017 ◽  
Author(s):  
Marcelo Vieira ◽  
Elivaldo Ribeiro ◽  
Witã Rocha ◽  
Babacar Mane ◽  
Daniela Claro ◽  
...  
Keyword(s):  
Cloud Computing ◽  
Structure Data ◽  
Relational Database ◽  
Execution Time ◽  
Software As A Service ◽  
Data Format ◽  
Critical Issues ◽  
Computing Environments ◽  
Data As A Service ◽  
Cloud Applications

Over the years, Software as a Service (SaaS) has become a common delivery model for many applications. In cloud applications, a huge volume and variety of data can be generated and they can be available for consumption by DaaS (Data as a Service). For this, the data provided by DaaS can be stored in a non-structured (e.g. text), semi-structured (e.g. XML, JSON) or structured format (e.g. Relational Database). However, the access of that kind of DaaS, in a transparent manner, needs substantial efforts due to the lack of interoperability between SaaS and DaaS. In this paper, we propose a new enhanced version of MIDAS, middleware to provide seamlessly and independently interoperability between SaaS and DaaS. First, this new version of MIDAS allows both semi-structure and structure data format from SaaS. It mediates queries from NoSQL (e.g. MongoDB) and SQL (MySQL) databases. Secondly, it was enhanced with Join operations, both in SQL and in NOSQL statements. And lastly, other formats were added for the DaaS to fit SaaS requests, such as JSON, XML, and CSV formats. To evaluate this new version of our middleware, we provide three types of experiments to cover critical issues such as execution time, the overhead of our approach, and scalability of MIDAS. Our results show the effectiveness of our approach to tackling interoperability issues in cloud computing environments.

ANALISIS EFEKTIFITAS FRAMEWOK ERP CLOUD COMPUTING UNTUK USAHA KECIL MENENGAH

2018 ◽  
Vol 3 (1) ◽  
pp. 19 ◽  
Author(s):  
Matheus Alvian Wikanargo ◽  
Novian Adi Prasetyo ◽  
Angelina Pramana Thenata
Keyword(s):  
Cloud Computing ◽  
Human Resource ◽  
Software As A Service ◽  
Infrastructure As A Service ◽  
Computing Framework

AbstrakTeknologi cloud computing pada era sekarang berkembang pesat. Penerapan teknologi cloud computing sudah merambah ke berbagai industri, mulai dari perusahaan besar hingga perusahaan kecil dan menengah. Perambahan cloud computing di perindustrian berupa implementasi ke dalam sistem ERP. Namun, penetrasi teknologi ini dalam lingkup perusahaan kecil dan menengah (UKM) masih belum sekuat perusahaan besar. Penerapan ERP berbasis cloud computing yang masih tergolong baru tentu memiliki keuntungan dan penghambat yang mempengaruhi kinerja perusahaan. Hal tersebut menjadi salah satu pertimbangan UKM masih enggan menggunakan teknologi ini. Penelitian ini akan menganalisis framework yang paling sesuai untuk UKM dalam menerapkan sistem ERP berbasis cloud computing. Framework yang dianalisa yaitu Software as a Service (SaaS), Infrastructure as a Service (IaaS), dan Platform as as Service (PaaS). Ketiga framework ini akan dibandingkan menggunakan metode studi literatur. Tolak ukur yang menjadi acuan untuk perbandingan adalah Compatibility, Cost, Flexibility, Human Resource, Implementation, Maintenance, Security, dan Usability. Faktor-faktor tersebut akan diukur keuntungan dan penghambatnya jika diterapkan dalam SME. Hasil dari penilitian ini adalah Framework SaaS yang paling cocok untuk diterapkan pada perusahaan kecil dan menengah. Kata kunci— Cloud Computing, UKM, SaaS, IaaS, PaaS 

RANCANG BANGUN CLOUD COMPUTING DI LABORATORIUM KOMPUTER TEKNIK ELEKTRO UNIVERSITAS BANGKA BELITUNG

2014 ◽  
Vol 1 (1) ◽  
pp. 14-22
Author(s):  
Ghiri Basuki Putra
Keyword(s):  
Cloud Computing ◽  
Software As A Service ◽  
Private Cloud ◽  
Private Cloud Computing

Cloud computing telah menjadi hal yang menarik untuk dibahas dikarenakan perkembangannya yang begitu pesat sejak pertama kali diperkenalkan mulai tahun 2000. Pemanfaatan cloud computing kepada penyimpanan data, pemakaian software secara bersama- sama serta penggunaan infrastruktur dan hardware pada jaringan atau komputer yang tergabung dalam sebuah cloud computing. Dengan cloud computing diharapkan adanya efesiensi dan kemudahan dalam  sumber daya baik software, data maupun hardware agar dapat digunakan bersama – sama. Perancangan cloud computing untuk laboratorium komputer Teknik Elektro Universitas Bangka Belitung bertujuan sebagai rancangan awal untuk pengembangan laboratorium komputer serta sebagai pusat pembelajaran dan penelitian cloud computing bagi mahasiswa Teknik Elektro. Perancangan cloud computing ini menggunakan metode Software as a Service (SaaS) dimana SaaS adalah layanan dari Cloud Computing dimana memakai software (perangkat lunak) yang telah disediakan sehingga tidak perlu setiap komputer di laboratorium menginstall software yang diperlukan selama tersedia di layanan Cloud Computing. Rancangan cloud computing di laboratorium menggunakan Private Cloud Computing merupakan pemodelan Cloud Computing yang memberikan lingkup yang lebih kecil untuk dapat memberikan layanan kepada pengguna tertentu misalnya pada sebuah jaringan komputer  lokal maupun pada skala perusahaan kecil maupun menengah.

The Propaganda Feedback Loop

2018 ◽  
Author(s):  
Yochai Benkler ◽  
Robert Faris ◽  
Hal Roberts
Keyword(s):  
Case Studies ◽  
Feedback Loop ◽  
The Other ◽  
Hillary Clinton ◽  
Donald Trump ◽  
The Public ◽  
False Reporting ◽  
Media Ecosystem ◽  
Crowd Out ◽  
Selection Of

This chapter presents a model of the interaction of media outlets, politicians, and the public with an emphasis on the tension between truth-seeking and narratives that confirm partisan identities. This model is used to describe the emergence and mechanics of an insular media ecosystem and how two fundamentally different media ecosystems can coexist. In one, false narratives that reinforce partisan identity not only flourish, but crowd-out true narratives even when these are presented by leading insiders. In the other, false narratives are tested, confronted, and contained by diverse outlets and actors operating in a truth-oriented norms dynamic. Two case studies are analyzed: the first focuses on false reporting on a selection of television networks; the second looks at parallel but politically divergent false rumors—an allegation that Donald Trump raped a 13-yearold and allegations tying Hillary Clinton to pedophilia—and tracks the amplification and resistance these stories faced.

scholarly journals Ethnic Hatred and Universal Benevolence: Ethnicity and Loyalty in Precolonial Myanmar, and Britain

2021 ◽  
Vol 63 (2) ◽  
pp. 310-338
Author(s):  
Victor Lieberman
Keyword(s):  
Case Studies ◽  
Political Thought ◽  
Western Europe ◽  
Popular Sovereignty ◽  
The Other ◽  
Social Pressures ◽  
Legal Equality ◽  
The One

AbstractInsisting on a radical divide between post-1750 ideologies in Europe and earlier political thought in both Europe and Asia, modernist scholars of nationalism have called attention, quite justifiably, to European nationalisms’ unique focus on popular sovereignty, legal equality, territorial fixity, and the primacy of secular over universal religious loyalties. Yet this essay argues that nationalism also shared basic developmental and expressive features with political thought in pre-1750 Europe as well as in rimland—that is to say outlying—sectors of Asia. Polities in Western Europe and rimland Asia were all protected against Inner Asian occupation, all enjoyed relatively cohesive local geographies, and all experienced economic and social pressures to integration that were not only sustained but surprisingly synchronized throughout the second millennium. In Western Europe and rimland Asia each major state came to identify with a named ethnicity, specific artifacts became badges of inclusion, and central ethnicity expanded and grew more standardized. Using Myanmar and pre-1750 England/Britain as case studies, this essay reconstructs these centuries-long similarities in process and form between “political ethnicity,” on the one hand, and modern nationalism, on the other. Finally, however, this essay explores cultural and material answers to the obvious question: if political ethnicities in Myanmar and pre-1750 England/Britain were indeed comparable, why did the latter realm alone generate recognizable expressions of nationalism? As such, this essay both strengthens and weakens claims for European exceptionalism.

scholarly journals Zero-Tolerance in Catalonia: Policing the Other in Public Space

2020 ◽  
Author(s):  
Martin Lundsteen ◽  
Miquel Fernández González
Keyword(s):  
Public Space ◽  
Case Studies ◽  
Urban Space ◽  
Zero Tolerance ◽  
The Other ◽  
Social Effects ◽  
Main Argument ◽  
Sociocultural Practices

AbstractRecent studies have argued for more nuanced understandings of zero tolerance (ZT) policing, rendering it essential to analyze the significance and actual workings of the policies in practice, including the context in which they are introduced. This article aims to accomplish this through a comparison of two case studies in Catalonia: one in the neighborhood of Raval in Barcelona and one in Salt—a municipality in the comarca (or county) of Girona. We identify a transformation in the use of ZT policies in Catalonia and a contradiction between their social effects and proclaimed objectives. This article attempts to address how specific sociocultural groups gain power and privilege from these policies. The main argument is that a set of commonsensical ideas have become hegemonic, which allows and naturalizes certain sociocultural practices in urban space, while persecuting others, fundamentally pitting two categories against each other: the desired civil citizen and the undesirable and uncivil stranger.

scholarly journals A Study on Strategic Provisioning of Cloud Computing Services

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Md Whaiduzzaman ◽  
Mohammad Nazmul Haque ◽  
Md Rejaul Karim Chowdhury ◽  
Abdullah Gani
Keyword(s):  
Cloud Computing ◽  
Cloud Service ◽  
Future Research ◽  
User Requirements ◽  
Service Provisioning ◽  
Research Issues ◽  
Computing Services ◽  
Cloud Computing Service ◽  
Essential Services ◽  
Cloud Providers

Cloud computing is currently emerging as an ever-changing, growing paradigm that models “everything-as-a-service.” Virtualised physical resources, infrastructure, and applications are supplied by service provisioning in the cloud. The evolution in the adoption of cloud computing is driven by clear and distinct promising features for both cloud users and cloud providers. However, the increasing number of cloud providers and the variety of service offerings have made it difficult for the customers to choose the best services. By employing successful service provisioning, the essential services required by customers, such as agility and availability, pricing, security and trust, and user metrics can be guaranteed by service provisioning. Hence, continuous service provisioning that satisfies the user requirements is a mandatory feature for the cloud user and vitally important in cloud computing service offerings. Therefore, we aim to review the state-of-the-art service provisioning objectives, essential services, topologies, user requirements, necessary metrics, and pricing mechanisms. We synthesize and summarize different provision techniques, approaches, and models through a comprehensive literature review. A thematic taxonomy of cloud service provisioning is presented after the systematic review. Finally, future research directions and open research issues are identified.

VORDi*

2021 ◽  
Vol 12 (4) ◽  
pp. 0-0
Keyword(s):  
Cloud Computing ◽  
Information Systems ◽  
Requirements Engineering ◽  
Systems Engineering ◽  
Early Phase ◽  
Service Providers ◽  
Software As A Service ◽  
New Approach ◽  
Computing Services ◽  
Cloud Computing Services

Cloud computing services mature both economically and technologically and play a more and more extensive role in the domain of software and information systems engineering. SaaS offers advantage for both service providers and consumers. SaaS is faced with the question of appropriate techniques applying at early phase of Requirements engineering of producing system. The paper highlights two traditional methods namely i* and VORD belonging respectively to Goal oriented Requirements Engineering and Viewpoints approaches. The approach proposed try to dealing with the requirements elicitation in the context of Software-as-a-service SaaS. So, the approach benefits from strengths of both VORD and i* models and propose a combination of them in a new approach namely VORDi*.

Influencing travel behaviour

2019 ◽  
pp. 107-130
Author(s):  
Stewart Barr ◽  
John Preston
Keyword(s):  
Qualitative Study ◽  
Case Studies ◽  
Behaviour Change ◽  
Social Marketing ◽  
Quantitative Study ◽  
Behavioural Change ◽  
Travel Behaviour ◽  
Air Travel ◽  
The Other ◽  
Car Travel

As travel planning’s theoretical underpinnings have broadened from engineering and economics to embrace psychology and sociology, an emphasis has been placed on social marketing and nudge theory. It is argued that this is consistent with a neo-liberal trend towards governing from a distance. Using two case studies, one a qualitative study of reducing short-haul air travel, the other a quantitative study of attempts to reduce local car travel, it is found that actual behaviour change is limited. This seems to arise because behavioural change has been too narrowly defined and overly identified with personal choice.

Policy and Practice: An Overview

1990 ◽  
Vol 12 (3) ◽  
pp. 233-239 ◽  
Author(s):  
David K. Cohen ◽  
Deborah Loewenberg Ball
Keyword(s):  
Case Studies ◽  
Classroom Practice ◽  
Teaching And Learning ◽  
Early Report ◽  
State Policies ◽  
The Other ◽  
Special Issue ◽  
Policy And Practice ◽  
School Practices ◽  
The One

Policymakers in the U. S. have been trying to change schools and school practices for years. Though studies of such policies raise doubts about their effects, the last decade has seen an unprecedented increase in state policies designed to change instructional practice. One of the boldest and most comprehensive of these has been undertaken in California, where state policymakers have launched an ambitious effort to improve teaching and learning in schools. We offer an early report on California's reforms, focusing on mathematics. State officials have been promoting substantial changes in instruction designed to deepen students' mathematical understanding, to enhance their appreciation of mathematics and to improve their capacity to reason mathematically. If successful, these reforms would be a sharp departure from existing classroom practice, which attends chiefly to computational skills. The research reported here focuses on teachers' early responses to the state's efforts to change mathematics instruction. The case studies of five teachers highlight a key dilemma in such ambitious reforms. On the one hand, teachers are seen as the root of the problem: their instruction is mechanical, often boring, and superficial. On the other hand, teachers are cast as the key agents of improvement because students will not learn the new mathematics that policymakers intend unless teachers learn that math and teach it. But how can teachers teach a mathematics that they never learned, in ways they never experienced? That is the question explored in this special issue.

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