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Software as a service

About: Software as a service is a research topic. Over the lifetime, 8514 publications have been published within this topic receiving 136177 citations. The topic is also known as: Service as a Software Substitute & SaaSS.


Papers
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Journal ArticleDOI
TL;DR: This paper introduces new services in Cloud Computing environment and proposes some more fundamental services which are still undefined to the researchers in most of the cases.
Abstract: In this paper, we are going to introduce new services in Cloud Computing environment. Three Cloud Computing services are already classified by the researchers such as Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). Each of defined services serves distinct purpose. Here, we propose some more fundamental services which are still undefined to the researchers in most of the cases. Each type of utility service is shown with an example which is interrelated with the engineering college scenario. An engineering college hierarchical framework is used as a case study where in each cloud is defined as a private or public or hybrid cloud. This hierarchical design is based on the typical resource environment found in many academic institutions.

49 citations

Proceedings ArticleDOI
24 Jun 2012
TL;DR: In this paper, the problem of composite SaaS resource management in cloud data center, specifically on its initial placement and resource optimization problems aiming at improving the performance based on its execution time as well as minimizing the resource usage is addressed using evolutionary algorithms.
Abstract: Software as a Service (SaaS) is gaining more and more attention from software users and providers recently. This has raised many new challenges to SaaS providers in providing better SaaSes that suit everyone needs at minimum costs. One of the emerging approaches in tackling this challenge is by delivering the SaaS as a composite SaaS. Delivering it in such an approach has a number of benefits, including flexible offering of the SaaS functions and decreased cost of subscription for users. However, this approach also introduces new problems for SaaS resource management in a Cloud data centre. We present the problem of composite SaaS resource management in Cloud data centre, specifically on its initial placement and resource optimization problems aiming at improving the SaaS performance based on its execution time as well as minimizing the resource usage. Our approach differs from existing literature because it addresses the problems resulting from composite SaaS characteristics, where we focus on the SaaS requirements, constraints and interdependencies. The problems are tackled using evolutionary algorithms. Experimental results demonstrate the efficiency and the scalability of the proposed algorithms.

49 citations

Journal ArticleDOI
Lihui Lin1
TL;DR: It is found that in the presence of network effects, the proprietary software dominates the market when the open source software does not provide higher benefits to users, which implies that open sourceSoftware, as a low-cost substitute to proprietary software, may not survive in a market exhibiting network effects.
Abstract: Despite the availability of source code, deploying open source software (OSS) in an enterprise environment requires expertise. Recent surveys and case studies show that the skills of IT staff in an organization are one of the key factors in OSS adoption decisions. Another important factor organizations consider when choosing a platform is network effects. This paper studies how users' skills and network effects may influence the market where proprietary software (PS) competes with OSS. In the model, users make adoption decisions considering their own skills and the network effects of the software, and the vendor of PS prices its product strategically. It is found that in presence of network effects, PS dominates the market when OSS does not provider higher benefits to users. This implies that OSS as a low-cost substitute to PS cannot survive in a market exhibiting network effects. To gain market share, OSS has to outperform PS by a large margin, which can be achieved if significant portion of users are highly skilled and thus can customize the OSS to better satisfy their needs.

49 citations

Proceedings ArticleDOI
15 Aug 2011
TL;DR: The challenges encountered in globally dispersed software projects are presented and a proposal to exploit cloud computing characteristics and privileges both as a product and as a process to improve GSD is proposed.
Abstract: With the expansion of national markets beyond geographical limits, success of any business often depends on using software for competitive advantage. Furthermore, as technological boundaries are expanding, projects distributed across different geographical locations have become a norm for the software solution providers. Nevertheless, when implementing Global Software Development (GSD), organizations continue to face challenges in adhering to the development life cycle. The advent of the internet has supported GSD by bringing new concepts and opportunities resulting in benefits such as scalability, flexibility, independence, reduced cost, resource pools, and usage tracking. It has also caused the emergence of new challenges in the way software is being delivered to stakeholders. Application software and data on the cloud is accessed through services which follow SOA (Service Oriented Architecture) principles. In this paper, we present the challenges encountered in globally dispersed software projects. Based on goals mutually shared between GSD and the cloud computing paradigm, we propose to exploit cloud computing characteristics and privileges both as a product and as a process to improve GSD.

49 citations

Journal ArticleDOI
TL;DR: In part two of this paper, the origins and evolution of Software as a Service (SaaS) and its value proposition to Corporate IT, Service Providers, Independent Software Vendors and End Users are described.
Abstract: In part I of this paper, we described the origins and evolution of Software as a Service (SaaS) and its value proposition to Corporate IT, Service Providers, Independent Software Vendors and End Users. SaaS is a model in which software applications are deployed, managed, updated and supported on demand---like a utility---and are served to users centrally using servers that are internal or external to the enterprise. Applications are no longer installed locally on a user's desktop PC; instead, upgrades, licensing and version control, metering, support and provisioning are all managed at the server level. In part we examine the lessons learned in researching, building and running an SaaS service.

49 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202375
2022226
2021192
2020306
2019327
2018424