Reza Sahandi

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Vendor lock-in is a major barrier to the adoption of cloud computing, due to the lack of standardization. Current solutions and efforts tackling the vendor lock-in problem are predominantly technology-oriented. Limited studies exist to analyse and highlight the complexity of vendor lock-in problem in the cloud environment. Consequently, most customers are(More)
Cloud computing offers an innovative business model for organizations to adopt IT services at a reduced cost with increased reliability and scalability. However organizations are slow in adopting the cloud model due to the prevalent vendor lock-in issue and challenges associated with it. While the existing cloud solutions for public and private companies(More)
Availability of Zigbee-based sensor network technology with low-power consuming sensors has made their implementation in healthcare possible, particularly for remote patient monitoring. Two alternative approaches for the deployment of Zigbee-based Wireless Personal Area Networks (WPANs) for remote patient monitoring on general wards are discussed and their(More)
Remote patient monitoring (RPM) provides an efficient method to improve patient care in hospitals. Zigbee network technology with low-power consuming sensors has the capability to provide enhanced mobility and comfort to patients. A single Zigbee based sensor network is unable supporting all the patients on a general ward. The allocation of a ZigBee sensor(More)
Cloud computing is a new paradigm for emerging technology in the computing and IT industries. Cloud computing offers a new pathway for business agility and supports a faster time to market by offering ready-to-consume cloud-based IT services. SMEs can wisely take advantage of the cloud computing services, without the need for upfront costs. The perception(More)
Cloud computing provides users the ability to access shared, online computing resources. However, providers often offer their own proprietary applications, interfaces, APIs and infrastructures, resulting in a heterogeneous cloud environment. This heterogeneous environment makes it difficult for users to change cloud service providers; exploring capabilities(More)
Cloud computing provides an innovative delivery model that enables enterprises to reduce operational costs and improve flexibility and scalability. Organisations wishing to migrate their legacy systems to the cloud often need to go through a difficult and complicated decision-making process. This can be due to multiple factors including restructuring IT(More)
Migrating existing resources to cloud computing is a strategic organisational decision that can be difficult. It requires the consideration and evaluation of a wide range of technical and organisational aspects. Although a significant amount of attention has been paid by many industrialists and academics to aid migration decisions, the procedure remains(More)