Browsing by Author "Mbugua, Samuel"

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ENVIRONMENTAL IMPLICATIONS OF CELL PHONES PENETRATION AND DISPOSAL IN KENYA
(International Journal of Computers & Technology, 2014-05-25) Wabwoba, Franklin; Sakwa, Thomas; Mbugua, Samuel; Kilwake, Humphrey
ABSTRACT Kenya has over six million active mobile subscribers who may at some point want to replace or get rid of old mobile phones. A big number of the mobile phones were recently switched off for not being genuine without a prober mechanism being put in place for the disposal. If every affected individual or otherwise disposed off phones by throwing it away then there could a serious ecological disaster in waiting. Cell phones are hazardous materials because of electromagnetic radiation and electronic composition. They have substances such as antimony, arsenic, beryllium, cadmium, copper, lead, nickel and zinc which belong to a class of chemicals known as persistent toxins. These toxins pollute and remain in the environment for long periods. There are ill-effects of wireless and telecommunication devices on the environment are disastrous. The increased use of high resolution LCD screens leads to a potentially devastating environmental challenge. There is no clear policy frame work on e-waste management with a special focus on used mobile phones in the country. A proper disposal mechanism of wireless and telecommunication devices is a necessity in Kenya
Environmental implications of cell phones penetration and disposal in Kenya
(International Journal of Computers & Technology, 2014) Wabwoba, Franklin; Sakwa, Thomas; Mbugua, Samuel; Kilwake, Humphrey Juma
Kenya has over six million active mobile subscribers who may at some point want to replace or get rid of old mobile phones. A big number of the mobile phones were recently switched off for not being genuine without a prober mechanism being put in place for the disposal. If every affected individual or otherwise disposed off phones by throwing it away then there could a serious ecological disaster in waiting. Cell phones are hazardous materials because of electromagnetic radiation and electronic composition. They have substances such as antimony, arsenic, beryllium, cadmium, copper, lead, nickel and zinc which belong to a class of chemicals known as persistent toxins. These toxins pollute and remain in the environment for long periods. There are ill-effects of wireless and telecommunication devices on the environment are disastrous. The increased use of high resolution LCD screens leads to a potentially devastating environmental challenge. There is no clear policy frame work on e-waste management with a special focus on used mobile phones in the country. A proper disposal mechanism of wireless and telecommunication devices is a necessity in Kenya
Factors influencing the selection of mobile phone among university students in Kenya
(KIBU, 2018-06-12) Ronoh, Richard K.; Mbugua, Samuel; Wabwoba, Franklin
Mobile phone technology has reached unprecedented level leading to unconstrained selection nightmare. This study investigates the selection priorities of mobile phone among university students in Kenya. A total of 310 undergraduate students participated in the study. A survey research design was used in this study. Questionnaire was employed in collection of data and the collected data was analyzed using descriptive and inferential statistics. The findings from this study revealed that university students yearn for the latest technology phones which come with numerous features although not all features are actually used. The study established that the phone appearance, technology used in the phone, accessibility and connectivity are the most important considerations when selecting a mobile phone. The information obtained from this study will provide a baseline understanding of the factors influencing the selection and hence usage of mobile technology among university students in Kenya. Furthermore, the study shows how mobile features can be used as indicators of mobile phone selection.
Framework for evaluation of effectiveness of integrated financial management information system architecture implemented in public hospitals in Kenya
(KIBU, 2019-06-12) Afwande, Margaret; Mbugua, Samuel; Kilwake, Juma
Integrated Financial Management Information System (IFMIS), is an enterprise resource planning application that captures all functional processes and relevant financial flows within Public expenditure management. IFMIS is being adopted by the Public hospitals to promote efficiency, effectiveness, accountability, transparency, security of data management and comprehensive reporting. However, the Public hospitals are loosing a lot of money through scandals and this has compromised service delivery to the Public. Therefore, the purpose of this study was to investigate the effectiveness of IFMIS as used in Public procurement services in Public Hospitals in Kenyaand come up with an enhanced secure technical architecture. The objectives of the study were: to asses the extent to which IFMIS has been implemented in Public procurement services in Public hospitals in Kenya, to evaluate the effectiveness of IFMIS in enforcing logical access and technical controls in Public procurement services in Public Hospitals in Kenya and to develop a framework that will evaluate the effectiveness of IFMIS architecture that is implemented in Public procurement services in Public hospitals in Kenya .The study used mixed method research design targeting users of IFMIS. Stratified sampling was used to select the target population of 132 in 4 hospitals in Kenya. The target population was from 5 homogeneous stratum comprising of 44 Procurement Assistants, 36 Finance Assistants, 12 Audit Assistants, 28 Medical Practitioners and 12 ICT Staff. Proportional allocation method was used to calculate the sample size which was 99 respondents. The data was collected through questionnaires and direct observation. Content validity was done to ascertain the validity of the research instruments. Reliability of the instruments was carried out using test-retest technique. Internal consistence of data was computed using Crochbach Alpha Computation. Analysis of Quantitative and qualitative data was through descriptive and inferential statistics methods and content analysis respectively. The study developed a framework of enhanced technical architecture of IFMIS that would streamline procurement services in Public hospitals and improve provision of quality health care.
Green ICT implementation in developing nations: personnel perspective
(Scholars Press, 2014) Wabwoba, Franklin; Mbugua, Samuel
Though ICT is contributing to the economy associated with innovations, inventions and rapid development in almost all aspects of human life, it is also responsible for climatic degradation. The rapid increase of ICT usage means more costs of doing business, energy consumption, and more environmental challenges. The rapidly changing technology and lack of their understanding has put a lot of pressure on both management and ICT personnel to implement them on a trial and error manner. This has limited the gains meant to be obtained from green ICT. The lack of appropriate alignment between the ICT personnel capacity and the workplace readiness poses more environmental and unsustainable resource utilization challenges. The book was informed by the G-readiness model. It discusses the green ICT technologies, the personnel awareness of green ICT, green ICT maturity, and workplace readiness for green ICT and the perceived barriers to green ICT implementations. It explains the extended G-readiness assessment and G-alignment models that when well applied are bound to enhance the implementations of green ICT. It is an excellent book for undergraduate and graduate studies for Green ICT courses.
Model Driven Architecture: A Review of Current Trends
(International Journal of Computer Science and Mobile Applications, 2023-01-18) Onunga, Jeremiah; Mbugua, Samuel
The Object Management Group (OMG) adopted the Model Driven Architecture (MDA) approach from among the various Model Driven Engineering (MDE) methods. The MDA technique, which is based on the separation of concerns principle, aims to automate the software development process by using models rather than traditional coding. Model Driven Architecture (MDA) is a new technique to application modeling and creation that has gotten a lot of attention recently. Many organizations are now considering MDA as a way to organize and manage their application solutions, tool vendors are explicitly referring to their capabilities in terms of "MDA compliance," and the MDA lexicon of platform-specific and platform-independent models is now widely referenced in the industry. The OMG produced the second iteration of the MDA guide in June 2014 in an effort to implement the essential ideas and supplement the 2003 original with more precise specifications. Researchers' interpretations of the MDA words vary due to the 11-year difference and their respective perspectives and backgrounds. What causes uncertainty about what falls under and outside the MDA's scope. In this work, we present an overview of the current MDA trends simplifying integration challenges and enhancing business Information Technology (IT) alignment. This paper establishes boundaries around what constitutes MDA, positioning MDA in relation to other model-driven methods. It will also demonstrate its advantages over conventional software development and other model-driven methodologies. This paper highlights problems and difficulties that researchers have identified that affect the MDA. The paper also provides some insight into the MDA trends in research and directions, particularly with regard to the platforms that the MDA development process is aimed at and its automation.
Security Shortcomings of Electronic Web Based Voting Systems for Universities in Kenya
(KIBU, 2019-10) Simiyu, Prestone; Mbugua, Samuel; Otanga, Daniel
Electronic Voting can deliver free and fair elections as well as ensuring on time release of results. One factor fueling the adoption of e-voting is the access to internet and more so GSM network, by majority of the world population. However, with this adoption of electronic voting around the world, some concern are being raised regarding the process. Technically, it’s hard to achieve availability, integrity and confidentiality which are the pillars of a free and fair elections while using electronic voting. It is because of this issues that the purpose of this research was to examine security shortcomings for existing web based electronic voting frameworks. A mixed research design was used for the study covering both descriptive survey design and content analysis. The target population of the study was 13700 students, 60 student’s council leaders, 64 electoral Officials, 4 dean of student office officer, 6 ICT directorate staff and 29 top management from Catholic University and Kenya College of Accounting University both located in Kenya. Purposive sampling was used to select electoral commission chair, Dean of students while random sampling was used to select 6 management officers, 6 ICT directorate staff, 376 students, 14 electoral officials’ staff and 12 student leaders giving a sample of 420. Data collection Instruments were questioners, interview schedule and observation and the data collected was analyzed using descriptive analysis. It was established from the study that the university voting system of the sampled had issues with availability as they had failed at some point. Also, the systems experienced slow speed on the voting day. Another outcome was that the system had locked out a group of eligible voters. Therefore, the systems had issues with integrity. Finally, it was established that the voting system had not allowed non eligible people to vote as well as the system can link the voter and the voter’s ballot which is a confidentiality security concern. The output of the paper is a framework for solvingthe current security issues of the electronic voting web based system for Kenyan universities. The findings of the study are significant to electoral commissions of different institution, voters and policy makers