iosr-JCE   Volume-23 ~ Issue-1 ~Jan. - Feb. 2021

Abstract: In this Article, an intranet based file transfer and distribution system was developed. With recent development in information security were hackers has developed sophisticated applications and program to hacked even seemingly secured systems, the need to build more security walls can never be overrated. This article focuses on developing an intranet based system that will have multi security layers of authentication before a user will have access to a shared file .In achieving this, organizations were under studied to possible points of loophole, identify necessary measures and strategies which were employed in the development of the design algorithm used in building the different modules . Being a module by module based software design the research was done with the water fall model which allows for stepwise development of these modules. The algorithm, system block diagram and system component description was done while the associated images were attached as figures in the appendix.

Keywords: Development, intranet, file transfer, distribution system, and multi security layer PHP codes.

[1]. Douglas Kunda and AlinasweSiame,(2017)"Evolution of PHP Applications: A Systematic Literature Review" Mulungushi University, Kabwe, Zambia.
[2]. E. Merlo, D. Letarte and G. Antoniol, "SQL-Injection Security Evolution Analysis in PHP," IEEE, pp. 45-49, 2007. https://doi.org/10.1109/wse.2007.4380243
[3]. M. Hills and P. Klint (2014) "PHP AiR: Analyzing PHP Systems with Rascal," IEEE, pp. 454- 457, 2014.
[4]. Malrey Lee et al (2011) "Design and implementation of an intranet Security and access control system In ubi-com" Computing and Informatics, Vol. 30.
[5]. Mohammed M. A* , Alexander A Q (2017) "Information Security in an Organization" International Journal of Computer (IJC)

Abstract:WHAT IS Covid-19 teaching us? Chinese word CRISIS consists of two ideograms: the first means DANGER, the second means OPPORTUNITY. Most people perceive the coronavirus as a DANGER manifesting itself in its worst forms. It causes drastic behavior change, quarantine and social isolation. It creates panic, shortages and anxiety. It dramatically reduces economic activity, destroys stock markets and paves the way for recession. Schools, colleges, even kindergartens are closed. Sport events, concerts, competitions and championships are canceled. An overstretched health system is bursting at the seams. Borders are closed, traffic has stopped, airlines, cultural institutions, tourism.......

Key Word: information technology, e-business, digital business transformation, education, technology

[1]. Ira Kaufman & Velimir Srića 2020. EmpowerUs - From Crisis to Strategic Harmony, Kitsap Publishing
[2]. Veselin Vukotić. 2020. Simboli i metafore. Nova Knjiga. Podgorica
[3]. Velimir Srića. 2016. Sve tajne harmoničnog vođenja. Sveučilište u Zagrebu
[4]. Mario Spremić. 2016. Digitalna transformacija poslovanja. Sveučilište u Zagrebu
[5]. Lars Kurznack & Raymond Timmer. 2020. Anchor business decisions in a view of the post-COVID-19 era. KPMG

Abstract: Background:Server based network systems perform the centralization of the network functions. It also provides the ability to allow the companies to share folders and data with high level of security as well as increase the web browsing speed and the backup process. After the identification of required server-based network type based on the problems that the clients face, a particular server-based network will be installed along with any other required supporting networks. This study is designed to analyze server-based network system implementations according to client requirements. A questionnaire was used to gather the information on the satisfaction of the clients and the success rate of those implementations. After that for the evaluation of data, a qualitative analysis was done, in order to have a proper idea on the demand of the server......

Key Word: Server-based network; supportive networks; qualitative analysis

[1]. Computer Networks (5th Edition) – Andrew S. Tanenbaum 2010, Page 30-31.
[2]. Computer Networking: A Top-Down Approach (6th Edition) – Kurose and Ross 2017, Page 50-52.
[3]. TCP/IP Network Administration – Craig Hunt 1992, Page 40-45.
[4]. The Practice of System and Network Administration - Thomas A. Limoncelli, Strata R. Chalup and Christina J. Hogan 2007, Page 20-25.
[5]. Network Maintenance and Troubleshooting Guide: FieldTested Solutions for Everyday Problems - Neal Allen 2009, Page 60-70.

Abstract:Background: Nowadays researchers are working tirelessly to find ways to better understand, treat and eventually eliminate COVID-19. This paper presents an Expert System for Corona Diagnosis (ESCD) to predict Covid-19 based on cognitive automation and production-rules. Materials and Methods: This paper gives an overview of artificial intelligence in the medical and healthcare sector and presents a system that uses artificial-intelligence methods to solve problems within a specialized domain that ordinarily requires human expertise. Cognitive Automation extracts the symptoms from the unstructured text which can be found on various online resources like blogs.......

Key Word: Expert Systems; Artificial Intelligence; Python, Interference Engine; Knowledge Base, Covid-19; Cognitive Automation

[1]. M. J. I. H. K. A. H. Raju Vaishyaa, "Artificial Intelligence (AI) applications for COVID-19 pandemic," Diabetes & Metabolic Syndrome: Clinical Research & Reviews, vol. Volume 14, no. 4, pp. Pages 337-339, August 2020,.
[2]. J. J. SprockelDíaz, "Artificial intelligence in cardiovascular medicine: Applications in the diagnosis of infarction and prognosis of heart failure," Artificial Intelligence in Precision Health, pp. Pages 313-328, 2020 .
[3]. H. Tan, "A brief history and technical review of the expert system research," in IOP Conference Series: Materials Science and Engineering, 2017.
[4]. "Expert System for Early Diagnosis of COVID - 19," International Journal of Current Research and Review, vol. 12, no. 22, 2020.
[5]. C.-G. M.-C. A.-P. J.-R. J, "Design and Development of a Methodology Based on Expert Systems, Applied to the Treatment of Pressure Ulcers," Diagnostics, vol. 10, no. 9, 2020.

Abstract: This paper deals with the best practices of Microservices and importance of CQRS (Command Query Responsibility Segregation) and Event Sourcing for optimal architecture. Also, this paper guides you through the relevant AWS services and how to implement typical patterns, such as CQRS and Event Sourcing, natively with AWS services. Many companies falling into the trap of using REST nowadays, due to popularity and power REST provides based on its own merits, as an "all-in-one" tool.Most microservices architectures will have at least one of those use cases but it seems it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail. Developers are also used to design applications with synchronous request/reply since APIs and Databases have trained developers to invoke a method and expect an immediate response. But Synchronous communication is the crystal meth of distributed softwarebecause it feels good at the time but in the long run will lead with many problems.It has been identified a good Microservice Architecture can't be designed without Event-driven design using Event Sourcing and CQRS.

[1]. How Synchronous REST Turns Microservices Back into Monoliths – The New Stack [2]. B. M. Michelson, "Event-driven architecture overview", Patricia Seybold Group, vol. 2, 2006 [3]. G. Young. (2016) A Decade of DDD, CQRS,Event Sourcing –Domain-Driven Design Europ 2016. visited on 2016-10-11. [Online]. Available: https://www.youtube.com/watch?v=LDW0QWie21s [4]. G. Young. (2010) CQRS and Event Sourcing. visited on 2016-10-11. [Online]. Available: http://codebetter.com/gregyoung/2010/02/13/cqrs-and-event-sourcing/ [5]. D. Betts, J. Dominguez, G. Melnik, F. Simonazzi, and M. Subramanian, Exploring CQRS and Event Sourcing: A journey into high scalability, availability, and maintainability. Microsoft patterns & practices, 2013