Implementing Cloud Information Systems: SaaS Migration (original) (raw)
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Review of cloud migration strategies and providers – an IaaS migration strategy
2018 UBT International Conference, 2018
Companies are addressing the Cloud Computing issue more actively recently, as a part of a move towards a more agile and flexible IT infrastructure since benefitting from an IT infrastructure that is flexible, scalable, high-performance and up-to-date is no longer a luxury or the exception to a rule. The issue they address is "Which is the best strategy?" Of course, this is not a simple issue given that the cloud can impact an organization's application picture across several dimensions. When an organizations made the decision to consider cloud services for its application or infrastructure deployment, it's important to understand the fundamental differences between the core categories of cloud services available since IT leaders and enterprise architects should prepare an overarching cloud strategy. The cloud is a very broad concept covering different types of online services, but when referring to cloud procurement, usually there are three models to be taken into the consideration, such as Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). Another thing that needs to be addressed is choosing the provider of the cloud platform as service. To do that the organization needs to anticipate the storage, apps they use, performances they need, price, flexibility, etc. Through this review study research we're going to present shortly SaaS and PaaS as cloud service models and will describe in more details a possible migration IaaS strategy.
A Comparison of On-premise to Cloud Migration Approaches: A Tale of Four Cloud Migration Processes
2013
While cloud computing has certainly gained attention, the potential for increased uptake of the technology is still large. As a consequence, how to move and migrate to the cloud is an unanswered question for many organisations. Gaining an understanding of cloud migration processes from on-premise architectures is our aim here. For this purpose, we look at three provider-driven case studies based on the common three layers of cloud computing: Infrastructure (IaaS), platform (PaaS) and software (SaaS) as a service. These shall be complemented by a fourth, independent systems integration perspective. We extract common migration process activities for the layer-specific processes and discuss commonalities, differences and open issues. The results presented are based on expert interviews and focus groups held with major international cloud solution providers and independent consultants.
2017
Cloud computing provides shared information and communication technology (ICT) resources to individuals and organisations, including hardware and software resources that were previously too costly for an individual organisation to manage and own. Cloud computing makes vast amounts of ICT resources available to business organisations, resources that can improve business processes and allow business organisations to leverage ICT in ways that were previously impossible. The correct implementation, adoption and usage of ICT within a business organisation can lead to enhancements in productivity, innovation, and new products and services, as well as the reduction of production costs. Recent literature has attested to the fact that the adoption of cloud computing has been much lower than expected. Business organisations that have adopted cloud computing have done so mainly in products and services that can be categorised as support or non-core activities, such as HR, accounting, and marketing. In order to understand why the adoption pattern of cloud computing in business organisations has focused mainly on non-core activities, this study aims to identify the core challenge facing cloud service providers (CSPs) that provision cloud solutions to business organisations in the investment management industry. These would include cloud solutions that investment managers can use in their core business activities. Furthermore, the aim of this dissertation is to identify how CSPs overcome the core challenge faced. A case study was performed on a single CSP that provisions a SaaS solution to the investment management sector in South Africa. The case study identified migration as the core challenge experienced by CSPs. Classical grounded theory was used to generate the theory of "Balancing Migration" being the resolution to the core challenge identified. The results of the study point to the fact that investment management organisations have processes and systems that have become entrenched in their business over many years. Migrating an established system to the cloud is more than just substituting software. Migration to the cloud requires investment managers to migrate both business processes and operating strategy, and to migrate the actual software products and infrastructure. A CSP provisioning a SaaS solution for a core business activity needs to migrate the products that they offer as well as their business strategy. Balancing Migration: Overcoming the challenge to SaaS provisioning for core business activities: A South African case study Page | vi The theory of "Balancing Migration" proposes that these four categories of migration challenges need to be addressed simultaneously and holistically. In summary, "Migration" is the core concern to a CSP provisioning a SaaS solution for a core business activity, and "balancing migration" is how this core concern is resolved.
Cloud migration: A case study of migrating an enterprise it system to iaas
2010 IEEE 3rd …, 2010
This case study illustrates the potential benefits and risks associated with the migration of an IT system in the oil & gas industry from an in-house data center to Amazon EC2 from a broad variety of stakeholder perspectives across the enterprise, thus transcending the typical, yet narrow, financial and technical analysis offered by providers. Our results show that the system infrastructure in the case study would have cost 37% less over 5 years on EC2, and using cloud computing could have potentially eliminated 21% of the support calls for this system. These findings seem significant enough to call for a migration of the system to the cloud but our stakeholder impact analysis revealed that there are significant risks associated with this. Whilst the benefits of using the cloud are attractive, we argue that it is important that enterprise decision-makers consider the overall organizational implications of the changes brought about with cloud computing to avoid implementing local optimizations at the cost of organization-wide performance.
An Evaluation Framework for Migrating Application to the Cloud: Software as a Service
Software as a Service (SaaS) is one of cloud computing offerings that attract organisations as a potential solution in reducing their IT cost. However, the functionality and reliability of the SaaS model is still questionable and raises concerns and hesitations in its adoption. This paper proposes a framework that enables an organisation to assess its current IT landscape and provides readiness assessment for SaaS adoption. The framework adapts Business Aligned IT Strategy (BAITS) methodology as its foundation. A case study of a local council in UK is used to validate the application of the methodology.
Learnings from a Cloud Migration Project at a South African Retailer
2020
All industries are aware of the potential benefits of cloud computing, however, the migration to cloud has not been widely adopted by South African retailers. The purpose of this paper is to explore the motivations behind organisations deciding to migrate to cloud and the factors that may impact a successful cloud migration project. The paper discusses a case study that analysed the key drivers and the impact of cloud migration within a retail environment. The empirical findings suggest that skills and competencies largely impact every aspect of cloud migration, from decision making to execution and support. Furthermore, that migrating to cloud will differ based on organisational need and the type of cloud service being adopted. In addition, the findings outlines that best practise may advance as more organisations migrate to cloud environments.
Moving the IT Infrastructure to the Cloud
Enfoque UTE
Cloud computing services are nowadays advertised as an emerging business model. Moreover, these services bring innovative solutions in a more sophisticated competitive market. But, the decision for their adoption could be significantly reduced due to organizations’ concerns related to security, privacy, and trust. The challenge involves such questions as where to start, which provider should the company choose or whether it is even worthwhile. Thus, this paper proposes an improved unified framework, based on a previous study where a 6 step process framework was introduced. This improved framework add one new step for security and control after the migration process. At the end, a 7 processes framework is proposed aimed to fulfill organizations’ concerns when decide to adopt cloud computing services with a follow-up step. This additional step intends to help IT directors to make sure everything is working properly in a methodological way, in order to achieve a successful cloud comput...
Towards a cloud migration framework
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This paper presents a novel framework for organisations to carry out a structured feasibility study on Cloud migration and to decide Cloud Migration Strategy. Following the framework helps an organisation to decide whether Cloud migration is a feasible option for them, and if so, the best strategic approach towards Cloud migration. It is a crucial and sensitive part for any organisation to decide whether they should move to Cloud Computing platform. The decision requires strategic approach with proper feasibility study. Several technological, human, security and financial factors are involved in decision making process to move to the Cloud. The proposed framework helps an organisation to carry out a feasibility study to decide whether to move to the Cloud, and if so, what would be the best approach towards Cloud migration. The proposed framework addresses the factors that an organisation must explore to decide on Cloud migration. Cloud Computing has its own pros and cons. A whimsical decision to move to the Cloud may be disastrous for an organisation. Following the proposed framework will help organisations to carry out a structured and integrated feasibility study deal with the decision on Cloud migration. CCS Concepts • Information systems➝Information Systems Applications➝ Computing Platforms • Security and Privacy➝Human and societal aspects of security and privacy.
IGI Global eBooks, 2012
The new market trends include globalization and service orientation as important drivers that are changing the way in which businesses operate. Companies are requesting flexible applications that can be acquired and executed seamlessly and independently of the location. This situation is progressively pushing businesses from a proprietary system orientation to a service one. Accordingly, more and more traditional software vendors are noticing the need to transform their current business and technology model in order to remain competitive in the market. Software as a Service (SaaS) has been set by these companies as a mandatory way to keep their existing customers while at the same time seizing the chance of acquiring new customers in unexplored markets. However, this transition from Software off-the-shelf to Software as a Service is not trivial as many issues (business, application, and technical) come into play. The real hands-on experience in implementing end-to-end SaaS migration strategies considering both business and technological dimensions of the problem are hardly covered. Hence, there exists a real demand for proven methods to perform the transition from traditional software products to the services concept. Based on this premise, this chapter presents a stepwise procedure and a method to migrate non-SaaS applications to SaaS taking into account not only technical and technological issues and constraints but also those issues related to business models and the monetization of the final solution. These methods are currently being supported by real-life experiments carried out in different companies based on successful SaaS implementation experiences, a deep understanding of the details, and a proven approach to making SaaS transformation happen in an accurate, secure, and sustainable way.
Strategies for Evaluating Cloud System Providers during the Transformation of Businesses
Business Transformation and Sustainability through Cloud System Implementation
This chapter takes a comprehensive look at the strategies and mechanisms developed for evaluating cloud services during business transformation. During business transformation, enterprises need to make decisions that would have long lasting impacts on the performance and profitability of the businesses. One of the important decisions business leaders are required to make is whether to own and manage their own IT infrastructure or outsource them from a public cloud provider. Due to the attractiveness of cloud computing, there are many cloud providers in the market creating a confusion in the minds of the customers who to select. Hence it is necessary to use proper strategies and mechanisms to evaluate the performance and the suitability of the service providers in meeting the customer requirements. This chapter takes an in depth look at some of the strategies, frameworks, mechanisms and tools proposed by researchers for evaluating cloud services in the literature with reference to th...