Browsing by Author "Matovu, Davis"

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    A Process Model to Enhance the Accuracy of Digital Forensic Investigations: A case of National Identification and Registration Authority (NIRA-Uganda)
    (East African Nature and Science Organization, 2022-12-19) Makheti, Alex; Ocen, Gilbert Gilibrays; Lusiba, Badru; Twaibu, Semwogerere; Alunyu, Andrew Eguar; Matovu, Davis; Odongtoo, Godfrey
    The field of digital forensics has become commonplace due to the increasing prevalence of technology since the late 20th century and the inevitable relevance of this technology in the conducting of criminal activity. In traditional forensics, the evidence is generally something tangible that could identify the criminal, such as hair, blood or fingerprints. In contrast, digital forensics deals with files and data in digital form extracted from digital devices like computers, and phones, among other digital devices, meaning is derived from the fact that a computer or computerized device is the subject or object of crime. In this paper, we explore the challenges faced by the National Identification and Registration Authority (NIRA) digital forensic investigation and develop a process model that enhances the accuracy of digital forensic investigation. We adopted a mixed method approach of research involving qualitative, quantitative and experimental design. The study makes significant findings in areas of enhancement accuracy of digital forensic investigation by enumerating the processes that must be followed. As a recommendation for future work, for purposes of generalisation of the study findings, a wider study involving other security agencies such as the police should be conducted.
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    An Analytical Review of Existing Supermarket Billing Systems
    (East African Nature and Science Organization, 2021-11-26) Ocen, Gilbert; Semwogerere, Twaibu; Sekamwa, Umar; Matovu, Davis
    Retail shops and stores form part of the nation’s business sector involved in selling and providing several goods and services. The main objective was to study and analyse existing supermarket billing systems and possibly identify their weaknesses and strengths. This will enable us to generate an RFID billing system that is unique and even more advantageous than the existing systems. The methodology used was qualitative involving hard and soft document reviews and observational experiments. Findings revealed that there are several billing systems which include the manual price tag system where a mini-computer (calculator) is used to sum up the total bill per customer at a time, the barcode reader system, the smart chart with store cards, and the ‘smart shopping cart. It was noted that these have the advantage of giving confidence all the items are counted, paid for, save time and are cheap to use. However, they are also associated with several weaknesses like long waiting time (queues), the systems require a lot of human effort to read the barcodes which is not efficient, barcode systems sometimes fail to read, possible human errors while entering information, possible cheating through wrongly-fed information and the desynchronization effects because of the unreliable network. This was an awareness drive about the existing supermarket billing systems in order to enhance further studies on better ones
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    An Improved Systematic Management Model for CCTV Footage in Police Criminal Investigations. A Case Study of Uganda Police Force
    (East African Nature and Science Organization, 2022-10-17) Ogwang, Nickson; Lusiba, Badru; Okello, Calvin Emmy; Ocen, Gilbert Gilibrays; Odongtoo, Godfrey; Matovu, Davis; Kamalha, Edwin
    Criminal investigations with CCTV footage are still having a lot of challenges being faced most especially in relation to footage management. A qualitative comparative study involving getting opinions from the experienced CCTV management team and the investigation team has been conducted to gather some information regarding the current CCTV management model. These findings were compared with the challenges reported by several media and individuals. The study revealed inadequate CCTV system audits, unauthorised footage recordings with personal devices by staff, footage leakages to social media, insufficient training for some staff, low coordination between Uganda Police Force CCTV management and stakeholders involved in road constructions, water supply constructions, billboard installations and electricity supply operations that interrupts CCTV camera operations in case of unexpected occurrences of their related activities. An improved model that involves cloud-based system audits, footage automated shutdown up-on detection of recording devices, cloud-based footage analysis and automated system backups have been incorporated into the current CCTV management model. The system computerisation procedure for the improved model have as well been outlined.
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    RFID-Based Automated Supermarket Self-Billing System
    (East African Nature and Science Organization, 2021-11-30) Sekamwa, Umar; Semwogerere, Twaibu; Ocen, Gilbert Gilibrays; Lusiba, Badru; Alunyu, Andrew; Matovu, Davis
    Supermarkets are large retail stores operated on a self-service basis. They sell a range of goods from agricultural produce to electronics with tagged prices. They are coupled with numerous advantages like supporting advanced means of payment like cheques, credit cards, smart store electronic cards and mobile money, offering transportation incentives and discounts. The study aimed at coming up with an RFID-Based billing system through automation. The methods and materials used included document reviews, observational experiments, system design, implementation and testing based on current situations in the supermarket business. Findings showed that there are several weaknesses with the existing systems and the new system could ably uphold the time resource, efficiency improvement of both workers and customers, and it is secure, cost-effective, and time-saving especially from queues. The widely implemented system can improve the revenue gap and possibly rejuvenate the national or international economy to a large extent.