In order to easily convert existing application to multi-tenant Software as a Service model, a Java migration platform is proposed. Firstly, the existing application is embed into the conversion platform and the single-tenant database was transformed to multi-tenant database by database transformation function. Secondly, each tenant’s operation and data access was isolated in business and datab...

The traditional Database partitioning has failed in multi-tenant shared scheme database; this paper proposed a mixed Partitioning Approach. By integrating vertical and horizontal partitioning, we can adaptive expand the multi-tenant database according to the number of server nodes or we can make an optimal partitioning. Experimental results show that our approach can improve the performance of ...

SaaS is a perfect technology to achieve scale economy. It uses multi-tenant to allow database to share storage but with irregular load, untraceable transaction characteristics and so on. TOL mechanism provides one granularity between the upper coarse-grained granularity and the lower finegrained granularity for each tenant. But the granularity may not be the most suitable. We define the cluster...

ion or at worse limits to its relevance. Finally, I made a brief comparison to other major strategies that could have been used in this study, namely Experimentalist and Constructivist approaches, and pointed out some of the potential deficiencies in relation to the Realist framework used here. The subtext to all of this is that the national policy for PM is a structure for social action, and w...

A multi-tenant application in Software as a Service (SaaS) is accessed by multiple organizations called tenants who have several users attached to them. Multi-tendency enhances resource utilization by effectively sharing resources and reducing cost, increasing productivity and online collaboration. However, providing a secure multi-tenant access to various tenants is still a challenge. Traditio...

Consider the following file caching problem: in response to a sequence of requests for files, where each file has a specified size and retrieval cost, maintain a cache of files of total size at most some specified k so as to minimize the total retrieval cost. Specifically, when a requested file is not in the cache, bring it into the cache and pay the retrieval cost, and remove other files from ...

The measures to curtail the spread of COVID-19 and prevent loss lives across globe include; lockdown schools, religious worship centres, business a general restriction movement people. lockdown, which involuntarily confined people different places abode has numerous effects on individuals society. This paper seeks examine how pandemic exacerbated violence social inequality in Nigeria attempts p...

Collaborative systems allow a group of organizations to collaborate and complete shared tasks through distributed platforms. Organizations who often leverage cloud-based solutions outsource their data benefit from the cloud capabilities. During such collaborations, tenants require access utilize resources held by other collaborating tenants, which are hosted across multiple providers. Ensuring ...