Abstract: software systems progressively evolve over time where source code needs to be modified, newly are added and others need to be deleted. Therefore, it is worth to monitor progress and software development, to measure growth and assess system stability. This paper assesses OSS software growth and instability to clarify impacts of its instability on its system growth. Three open source software applications, with different characteristics, have been selected. Size and instability metrics are extracted and statistically analyzed in order to assess the reflections of software growth under instability behaviors.
Ali Mresa, Abdussalam Baryun(6-2021)

This book chapter describes the place of MPLS in current state-of-the-art computer networking systems which emphasis the use of MPLS as a quality of service technique in different networking environments such as data centers and multimedia networking as a backbone networks. The chapter also includes practical experiments; which applied using OPNET network simulation tool; about transmitting multimedia over IP/MPLS networks and a fat tree data center architecture that employing MPLS. The examples show the feasibility of MPLS as a quality of service tool compared to best-effort IP networks. In addition, this chapter describes an effort of designing a network-on-chip system engaging MPLS mechanism as on-chip communication method which has been completely developed in C++. However, all results clearly confirm that MPLS is an efficient quality of service tool.
Azeddien M. Sllame(4-2021)

Biometrics technologies have been around for quite some time and many have been deployed for different applications all around the world, ranging from small companies' time and attendance systems to access control systems for nuclear facilities. Biometrics offer a reliable solution for the establishment of the distinctiveness of identity based on "who an individual is", rather than what he or she knows or carries. Biometric Systems automatically verify a person's identity based on his anatomical and behavioral characteristics. Biometric traits represent a strong and undeviating link between a person and his identity, these traits cannot be easily lost or forgotten or faked. Since biometric systems require the user to be present at the time of authentication. Some biometric systems are more reliable than others, yet biometric systems are neither secure nor accurate, all biometrics have their strengths and weaknesses. Although some of these systems have shown reliability and solidarity, work still has to be done to improve the quality of service they provide. In this paper we present the most common and reliable known biometric systems suitable for Multimodal Biometrics Fusion, providing highly efficient and secure systems, showing their strengths and weaknesses and also presenting technologies in which may have great benefits for security applications in the near future.
Abdulmonam Omar Ahmed Alaswad, Ihab Meftah Elfituri, Fawzia Elhashmi Mohamad(0-2014)