Web 2.0 technologies are having a considerable influence on the learning industry. Constructivist learning processes, such as collaborative writing, have emerged as a result of the development of Web 2.0 technologies. We define the term "mandatory collaborative writing" to describe a writing task where the group has a firm deadline. This article focuses on how a wiki can fully support mandatory group writing. The motivation of this design science research study emerges from a graduate Knowledge Management class assignment to write a wiki book. The main finding shows that the wiki instance used for the project, MediaWiki, could better facilitate the collaborative writing process with a set of extensions that support discussion and project management. We outline designs for these processes: 1) a discussion process that changes the way users discuss content on a wiki page and increases group awareness; and 2) a project management process that increases awareness of the status of each component of the writing project and provides an overall summary of the project. A demonstration of the principles to a focus group provided a basic proof of the validity of this design. The significant contributions of this study are these processes, which can facilitate group writing and constructivist learning processes. Contributions of the study to several streams of research are discussed.

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This study posits Blogs and Podcasts can be used to persuade students in one school to have more sense of community among their group. We designed and developed the WordPress MU based artifact, SISATSpace, to extend students' conversations and foster academic and friendly relationships. SISATSpace might be consider as a persuasive tool, medium, and social actor. The results from this study show that the system can change the attitude and behavior of the community at SISAT into one that fostered a psychological sense of community amongst its members.

RSA, a public key cryptosystem, was proposed to protect the information in the insecure channel. The security of RSA relies on the difficulty of factoring the modulus which is the product of two large primes. We proposed Modified Fermat Factorization Version 2 (MFFV2) modified from Modified Fermat Factorization (MFF) to break RSA. The key of MFFV2 is to decrease the number of times of MFF for computing an integers square root. However, MFFV2 is still time-consuming to some extent due to computation time of the subtraction of two integers for all iterations. Thus, this paper aims to propose Modified Fermat Factorization Version 3 (MFFV3) to increase the computation speed when compared with MFFV2. For MFFV3, we can ignore computing the difference between two integers when we know that the subtractions result is certainly not a perfect square. Hence, we develop the Differences Least Significant Digit Table (DLSDT), the information table used to analyze the least significant digit of the subtractions result. Experimental results show that the computation time of MFFV3 for factoring the modulus is substantially reduced in comparison to MFF and MFFV2 respectively.