Automatic Recovery of Database Structure (ARDS)

Abstract

One of the evolutions of information technology which is a very fascinating feature is the application of the auto recovery. This feature enables an external system to automatically diagnose other systems, detects the error that causes the failure, then recovers and reconfigures the system. The concept of software and web auto recovery is widely used in much software such as windows operating system which restores and recovers tools.  Since the aim is to fast recover the application and keep it running and available as optimal as possible then it will be suitable to apply this capability to the database applications to fast recover from any unexpected change that may happen. This paper proposes an auto-recovery system that monitors, diagnoses, checks and heals database applications automatically and immediately with unnoticeable recovery time. The aim is to recover and to redo the changes that happened to the database by internal unauthorized user or external intrusion. To test the practical applicability of the proposed methodology, an application has been developed to demonstrate the methodology and apply it for real time database applications. The results of experiments performed on different scenarios demonstrated the ability of the proposed framework to recover database applications.

The Adoption of Massive Open Online Courses in Selected Sub-Saharan African Countries: The Experiences of Urban Learners

“…For instance, it is observed that MOOCs' providers tend to rely on a pedagogical approach that is cognitive-behaviorist centric [41,42]. It thus follows that designers of MOOCs' instructional resources ought to take into consideration the need to provide learners with materials for learner(s)'s assessment, giving and obtaining feedback, provide materials that are applicable for remote usage, and materials that highlight the learning outcomes at the onset of the online lessons [43]; and, d. Ease of utility is another determinant of uptake and use of MOOCs [35,38,44]. This shows that the performance of MOOCs in terms of its user-friendliness and ease of accessing the sought educational contents is integral in MOOCs' utility to learners.…”