Towards Improving the Testability of Cloud Application Services

2015 ◽  
pp. 1915-1932
Author(s):  
Tariq M. King ◽  
Annaji S. Ganti ◽  
David Froslie
Keyword(s):  
Cloud Computing ◽  
Specific Problem ◽  
The Internet ◽  
Cloud Application ◽  
Power Storage ◽  
Controllability And Observability ◽  
Cloud Applications ◽  
Software Services

In cloud computing, applications are hosted, deployed, and delivered as services over the Internet. New cloud application services can be developed by tailoring existing ones, while hiding the complexity of the underlying implementation. Cloud applications may be able to adapt to changes in their environment, which should be secure and reliable. The infrastructure on which cloud applications are built is characterized by power, storage, and virtualization. But how does all of this affect the ability to adequately test cloud applications? This chapter investigates the testability of cloud application services. It focuses on the specific problem of reduced controllability and observability of software services hosted in the cloud, and proposes a novel solution referred to as Test Support as-a-Service (TSaaS). A prototype of TSaaS is also presented, and is used to discuss the feasibility, challenges, and benefits of the approach.

Towards Improving the Testability of Cloud Application Services

2012 ◽  
pp. 322-339 ◽  
Author(s):  
Tariq M. King ◽  
Annaji S. Ganti ◽  
David Froslie
Keyword(s):  
Cloud Computing ◽  
Specific Problem ◽  
The Internet ◽  
Cloud Application ◽  
Power Storage ◽  
Controllability And Observability ◽  
Cloud Applications ◽  
Software Services

In cloud computing, applications are hosted, deployed, and delivered as services over the Internet. New cloud application services can be developed by tailoring existing ones, while hiding the complexity of the underlying implementation. Cloud applications may be able to adapt to changes in their environment, which should be secure and reliable. The infrastructure on which cloud applications are built is characterized by power, storage, and virtualization. But how does all of this affect the ability to adequately test cloud applications? This chapter investigates the testability of cloud application services. It focuses on the specific problem of reduced controllability and observability of software services hosted in the cloud, and proposes a novel solution referred to as Test Support as-a-Service (TSaaS). A prototype of TSaaS is also presented, and is used to discuss the feasibility, challenges, and benefits of the approach.

scholarly journals Software-As-A-Service Economics

2010 ◽  
Vol 14 (1) ◽  
Author(s):  
Harry Katzan, Jr. ◽  
William A. Dowling
Keyword(s):  
Cloud Computing ◽  
Software As A Service ◽  
The Internet ◽  
Delivery Vehicle ◽  
Software Services

Software-as-a-Service (SaaS) has been defined as software deployed as a hosted service and accessed over the Internet.  This paper covers the democratization and monetization of software services and uses cloud computing as the primary delivery vehicle.  Cloud computing represents a contextual shift in how computers are provisioned and accessed.  Opportunity and value exists in software-as-a-service for providers and clients, and the economic and technical essentials are reviewed in this paper.

Causal Analysis of Software Development Attributes for Cloud Applications

2018 ◽  
Vol 13 (4) ◽  
pp. 66-81
Author(s):  
Nitasha Hasteer ◽  
Abhay Bansal ◽  
B. K. Murthy
Keyword(s):  
Cloud Computing ◽  
Factor Analysis ◽  
Software Development ◽  
Development Process ◽  
Software Development Process ◽  
Application Development ◽  
Relationship Analysis ◽  
Computing Paradigm ◽  
Cloud Application ◽  
Cloud Applications

Cloud computing provides organizations the dynamic capability to deploy applications quickly on self-provision development platforms. In adopting a cloud-computing paradigm, the software development process leverages the use of cloud native features. This article highlights a cloud-based health insurance solution that enables consumers to purchase packages online with the objective of identifying attributes in the context of the development process while analyzing the association among the attributes. Exploratory factor analysis is used to identify the latent attributes. Their associations, in terms of causal relationship analysis, are investigated via DEMATEL. Results of factor analysis imply that agility, availability and adaptability are the underlying factors for cloud application development. The findings of the DEMATEL reveal that co-creative and collaborative development process, which embrace quick discovery and assembly of services in the cloud, are significant attributes that influence other attributes within the context of the cloud-based software development process.

Formally Modeling and Analyzing the Reliability of Cloud Applications

2016 ◽  
Vol 26 (02) ◽  
pp. 273-305 ◽  
Author(s):  
Guisheng Fan ◽  
Huiqun Yu ◽  
Liqiong Chen
Keyword(s):  
Cloud Computing ◽  
Operational Semantics ◽  
Cloud Services ◽  
Heterogeneous Environments ◽  
Service Reliability ◽  
Modeling And Analysis ◽  
Factors Affecting ◽  
Dynamic Factors ◽  
Cloud Application ◽  
Cloud Applications

Cloud computing has become an important, useful paradigm for building applications with cloud services. However, cloud services exist in heterogeneous environments on the Internet. It is challenging to guarantee the reliability of cloud applications. Although there are efforts studying cloud and grid service reliability, very few have considered the modeling and analysis of the reliability of cloud applications. To address this emerging, important problem, we propose the first systematic approach that considers both cloud application elements and their running environment so as to faithfully model the dynamics of cloud computing. First, we present a formal description language to model the different components of a cloud application, and use it to analyze the static and dynamic factors affecting the reliability of cloud applications. Second, we propose reliability assurance strategies to ensure that cloud applications dynamically meet their required reliability. Third, Computation Tree Logic (CTL) is used to convert the reliability assurance strategy into the CTL formulas. We present operational semantics and related theories of Petri nets for establishing the correctness of our proposed method. Finally, a series of simulations are performed to evaluate the efficiency of our proposed approach.

scholarly journals A Brief History of Cloud Application Architectures: From Deployment Monoliths via Microservices to Serverless Architectures and Possible Roads Ahead

2018 ◽  
Author(s):  
Nane Kratzke
Keyword(s):  
Cloud Computing ◽  
Resource Utilization ◽  
Reference Model ◽  
Peer To Peer ◽  
Research Project ◽  
Language Engineering ◽  
Research Activities ◽  
Cloud Application ◽  
Cloud Infrastructures ◽  
Cloud Applications

This paper presents a review of cloud application architectures and its evolution. It reports observations being made during the course of a research project that tackled the problem to transfer cloud applications between different cloud infrastructures. As a side effect we learned a lot about commonalities and differences from plenty of different cloud applications which might be of value for cloud software engineers and architects. Throughout the course of the research project we analyzed industrial cloud standards, performed systematic mapping studies of cloud-native application related research papers, performed action research activities in cloud engineering projects, modeled a cloud application reference model, and performed software and domain specific language engineering activities. Two major (and sometimes overlooked) trends can be identified. First, cloud computing and its related application architecture evolution can be seen as a steady process to optimize resource utilization in cloud computing. Second, this resource utilization improvements resulted over time in an architectural evolution how cloud applications are being build and deployed. A shift from monolithic servce-oriented architectures (SOA), via independently deployable microservices towards so called serverless architectures is observable. Especially serverless architectures are more decentralized and distributed, and make more intentional use of independently provided services. In other words, a decentralizing trend in cloud application architectures is observable that emphasizes decentralized architectures known from former peer-to-peer based approaches. That is astonishing because with the rise of cloud computing (and its centralized service provisioning concept) the research interest in peer-to-peer based approaches (and its decentralizing philosophy) decreased. But this seems to change. Cloud computing could head into future of more decentralized and more meshed services.

scholarly journals Development of Mobile Cloud Applications using UML

2018 ◽  
Vol 8 (1) ◽  
pp. 596 ◽  
Author(s):  
Dong Kwan Kim
Keyword(s):  
Cloud Computing ◽  
Unified Modeling Language ◽  
Modeling Language ◽  
Mobile Cloud ◽  
Unified Modeling ◽  
Uml Profiles ◽  
Cloud Application ◽  
Tier System ◽  
Development Processes ◽  
Cloud Applications

With the proliferation of cloud computing technologies, smartphone users are able to use a variety of cloud computing-based mobile services such as games, education, entertainment, and social networking. Despite the popularity of such a mobile cloud computing, the complicated multi-tier system configuration of the mobile application must be one of the major impediments to develop mobile cloud applications. This paper presents development processes and procedures for developing mobile cloud applications by effectively applying Unified Modeling Language (UML), a representative object-oriented modeling language. The paper is intended to enhance the development productivity of the mobile cloud application and to improve the effectiveness of communication between software developers. In addition, we used the Android mobile platform and Amazon Web Service for cloud computing in order to demonstrate the applicability of the proposed approach to systematically apply the UML profiles and diagrams for cloud-based mobile applications.

scholarly journals A Brief History of Cloud Application Architectures

2018 ◽  
Vol 8 (8) ◽  
pp. 1368 ◽  
Author(s):  
Nane Kratzke
Keyword(s):  
Cloud Computing ◽  
Resource Utilization ◽  
Reference Model ◽  
Peer To Peer ◽  
Research Project ◽  
Service Oriented Architectures ◽  
Language Engineering ◽  
Research Activities ◽  
Cloud Application ◽  
Cloud Applications

This paper presents a review of cloud application architectures and its evolution. It reports observations being made during a research project that tackled the problem to transfer cloud applications between different cloud infrastructures. As a side effect, we learned a lot about commonalities and differences from plenty of different cloud applications which might be of value for cloud software engineers and architects. Throughout the research project, we analyzed industrial cloud standards, performed systematic mapping studies of cloud-native application-related research papers, did action research activities in cloud engineering projects, modeled a cloud application reference model, and performed software and domain-specific language engineering activities. Two primary (and sometimes overlooked) trends can be identified. First, cloud computing and its related application architecture evolution can be seen as a steady process to optimize resource utilization in cloud computing. Second, these resource utilization improvements resulted over time in an architectural evolution of how cloud applications are being built and deployed. A shift from monolithic service-oriented architectures (SOA), via independently deployable microservices towards so-called serverless architectures, is observable. In particular, serverless architectures are more decentralized and distributed, and make more intentional use of separately provided services. In other words, a decentralizing trend in cloud application architectures is observable that emphasizes decentralized architectures known from former peer-to-peer based approaches. This is astonishing because, with the rise of cloud computing (and its centralized service provisioning concept), the research interest in peer-to-peer based approaches (and its decentralizing philosophy) decreased. However, this seems to change. Cloud computing could head into the future of more decentralized and more meshed services.

Cloud Computing in Library

2014 ◽  
Vol 3 ◽  
pp. 94-112
Author(s):  
Angelė Pečeliūnaitė
Keyword(s):  
Cloud Computing ◽  
Scientific Community ◽  
Digital Age ◽  
International Experience ◽  
The Internet ◽  
Library Services ◽  
General Activity ◽  
Computing Services ◽  
Cloud Computing Services

The article analyses the possibility of how Cloud Computing can be used by libraries to organise activities online. In order to achieve a uniform understanding of the essence of technology SaaS, IaaS, and PaaS, the article discusses the Cloud Computing services, which can be used for the relocation of libraries to the Internet. The improvement of the general activity of libraries in the digital age, the analysis of the international experience in the libraries are examples. Also the article discusses the results of a survey of the Lithuanian scientific community that confirms that 90% of the scientific community is in the interest of getting full access to e-publications online. It is concluded that the decrease in funding for libraries, Cloud Computing can be an economically beneficial step, expanding the library services and improving their quality.

A Survey on Database in Cloud Computing with Reference to the Traditional Database

2017 ◽  
Vol 7 (11) ◽  
pp. 150
Author(s):  
Eter Basar ◽  
Ankur Pan Saikia ◽  
L. P. Saikia
Keyword(s):  
Information Technology ◽  
Cloud Computing ◽  
The Internet ◽  
Data Organization ◽  
Technology Industry ◽  
Business Applications ◽  
Business Information ◽  
Points Of Interest ◽  
Cloud Databases ◽  
Online Reservation

Data Technology industry has been utilizing the customary social databases for around 40 years. Be that as it may, in the latest years, there was a generous transformation in the IT business as far as business applications. Remain solitary applications have been supplanted with electronic applications, conferred servers with different proper servers and committed stockpiling with framework stockpiling. Lower expense, adaptability, the model of pay-as-you-go are the fundamental reasons, which caused the conveyed processing are transformed into reality. This is a standout amongst the hugest upsets in Information Technology, after the development of the Internet. Cloud databases, Big Table, Sherpa, and SimpleDB are getting the opportunity to be more natural to groups. They featured the hindrances of current social databases as far as convenience, adaptability, and provisioning. Cloud databases are basically utilized for data raised applications, for example, stockpiling and mining of gigantic information or business information. These applications are adaptable and multipurpose in nature. Various esteem based data organization applications, such as managing an account, online reservation, e-exchange and stock organization, and so on are delivered. Databases with the help of these sorts of uses need to incorporate four essential highlights: Atomicity, Consistency, Isolation, and Durability (ACID), in spite of the fact that utilizing these databases isn't basic for utilizing as a part of the cloud. The objective of this paper is to discover the points of interest and disservices of databases generally utilized in cloud frameworks and to survey the difficulties in creating cloud databases

Design and Implementation of Smart Classroom Based on Internet of Things and Cloud Computing

2021 ◽  
Vol 14 (2) ◽  
pp. 38-51
Author(s):  
Kai Zhang
Keyword(s):  
Cloud Computing ◽  
Internet Of Things ◽  
Classroom Management ◽  
Classroom Environment ◽  
The Internet ◽  
Smart Classroom ◽  
Technology Innovations ◽  
Internet Of Things Technology ◽  
Smart Classrooms ◽  
The Internet Of Things

With the development of emerging technology innovations such as the internet of things, classroom management has also shown an informatization trend. Among them, smart classrooms are an important part of the current university information environment construction. The purpose of this article is to build a smart classroom into an intelligent teaching environment with many functions such as intelligent perception and identification, real-time monitoring based on the internet of things technology and cloud computing technology. A questionnaire survey was conducted among freshman students in some majors, and interviews were conducted with the instructors. It was found that 92.19% of the students were satisfied with the classroom learning in the smart classroom environment, and most teachers thought that the teaching effect had been improved. Experiments have proven that the operation of smart classrooms based on the internet of things and cloud computing realizes the intelligence of teaching management services and improves the level of education informationization in schools.

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