Architectural Requirements for Cloud Computing Systems: An Enterprise Cloud Approach

Abstract

Cloud Computing is a model of service delivery and access where dynamically scalable and virtualized resources are provided as a service over the Internet. This model creates a new horizon of opportunity for enterprises. It introduces new operating and business models that allow customers to pay for the resources they effectively use, instead of making heavy upfront investments. The biggest challenge in Cloud Computing is the lack of a de facto standard or single architectural method, which can meet the requirements of an enterprise cloud approach. In this paper, we explore the architectural features of Cloud Computing and classify them according to the requirements of end-users, enterprises that use the cloud as a platform, and cloud providers themselves. We show that several architectural features will play a major role in the adoption of the Cloud Computing paradigm as a mainstream commodity in the enterprise world. This paper also provides key guidelines to software architects and Cloud Computing application developers for creating future architectures.

Structural sustainability appraisal in BIM

“…It is also possible to combine information from different web APIs to create a hybrid of new graphical interface, called mashups, with better visualisation and aggregation [9]. Lack of standardized APIs is identified as one the major challenges of the current evolution of the internet service delivery of cloud computing [10] which is currently being explored in distributed synchronous and asynchronous exchange/management of BIM data [11,12]. Cloud computing targets the provision of reliable and scalable on-demand computing services at distributed environments but there is yet to be a generally acceptable design guideline to tailor the APIs and usage model of providers.…”

A Unified Architecture for Optimal Resource Utilization in a Heterogeneous Cloud Environment

“…The biggest challenge that the present business world faces in cloud computing is the lack of a single and standard architectural method that can meet the requirements of an enterprise cloud approach. So, Bhaskar Prasad Rimal et al [7] proposed a model which fulfills the architectural requirements for cloud computing systems, and especially creates a new horizon of opportunity for enterprises. To avoid heavy upfront investments, it introduces new operating and business models that allow customers to pay for the resources they effectively use.…”

“…The ultimate goal of cloud computing is to provide on-demand computing services [3] with high reliability [4], scalability [5]- [7], availability, Quality of Service (QoS) [8], and with minimum cost in a federated [9] computing environments. It is important to note that the concept of cloud computing is not new, but it represents the next evolutionary step of several initiates carried out in the last few years, including distributed computing [10], grid computing [6], [11], [12], utility computing [6], [12]- [14], virtualization [6], [7], [15]- [17], and server clusters [15], [18].…”

“…It is important to note that the concept of cloud computing is not new, but it represents the next evolutionary step of several initiates carried out in the last few years, including distributed computing [10], grid computing [6], [11], [12], utility computing [6], [12]- [14], virtualization [6], [7], [15]- [17], and server clusters [15], [18].…”

A Metric-Based Approach to Assess Risk for “On Cloud” Federated Identity Management

“…Between the main security open issues, appropriate access control and identity management systems are frequently referred to as key required mechanisms for data protection in the cloud. In [35], the authors consider that the existing trusted third party (TTP) protocols may provide at least part of the security solution for cloud services, which supports the idea of using Single Sign-on models based on FIM technologies, such as SAML, Liberty Alliance, OpenID, WS-FED [36], or OAuth [37]. Furthermore, [5,38] also identify that the federation of identities maintained by the multiple cloud service providers is critical for cloud-based service composition and application integration.…”