Gilford T Hapanyengwi | University of Zimbabwe (original) (raw)

Papers by Gilford T Hapanyengwi

... It comes in three main types the QWERTY, the AZERTY, and the DVORAK. The difference between t... more ... It comes in three main types the QWERTY, the AZERTY, and the DVORAK. The difference between the three types is in the layout of the keys. ... KEYBOARD: This is an input device for the computer. It comes in three main types the QWERTY, the AZERTY, and the DVORAK. ...

EAST AFRICAN JOURNAL OF EDUCATION AND SOCIAL SCIENCES, 2022

This paper examined the perception of grade 1 pupils and their teachers towards WAPASA Applicatio... more This paper examined the perception of grade 1 pupils and their teachers towards WAPASA Application in the teaching and learning. The study employed the descriptive research design. A stratified random sampling of 210 pupils and a purposive sample of 12 teachers were from three purposively selected primary schools in Harare City. Of those, eight teachers and 196 pupils responded. Due to positive attitude of teachers and learner, it was concluded that WAPASA App is very useful for teaching and learning as it was perceived to be fun and interesting to use. Therefore, it can be used to support and enhance learning. If properly incorporated into the teaching and learning process, e-learning will play an important role for learning effectiveness. Therefore, it is recommended that, teachers should use the WAPASA App for maximized learning effectiveness. The Ministry of Education as well as directors of schools should provide in-service professional development workshops for teachers so tha...

Zimbabwe Journal of Educational Research, 2009

Proceedings of the EAI International Conference for Research, Innovation and Development for Africa, 2018

The role of information and communication technologies (ICTs) in poverty reduction and developmen... more The role of information and communication technologies (ICTs) in poverty reduction and development has been mainly assessed in the context of the agricultural sector. In this paper, we discuss the use of ICTs in Zimbabwe’s artisanal gold mining sector. The study uses desk research and a case study of Zhombe District in Midlands province. We contend that this line of inquiry deserves attention because of its huge impact on poverty reduction in Zimbabwe. The study concludes that there is little use of ICTs in the sector and highlights potential ICT applications that would enhance the sector’s contribution to poverty reduction and development. For example, while the case study notes current use of ICTs (in particular, mobile phones) for addressing the need for coordination and for communicating the opportunities and dangers associated with this illegal trade, immense scope exists in use of ICTs for disintermediation of the marketing process. Key to the success of suggested ICT initiati...

Advances in Agriculture

In Sub-Saharan Africa, where most irrigation systems are manually operated, water allocation and ... more In Sub-Saharan Africa, where most irrigation systems are manually operated, water allocation and irrigation scheduling are often based on uniform application irrespective of crop needs and growth stages, which results in nonoptimal water use. Recently, a lot of research has been carried out to improve irrigation water use efficiency through automation by employing wireless sensor-based monitoring systems. Further to the improvement of water use efficiency and yield, while reducing costs, a field trial was carried out at a farm in Harare, Zimbabwe, during the 2016, 2017, and 2018 winter seasons to test whether a new approach to the automated irrigation systems, one based on IoT and wirelessly connected soil sensors (called hereafter as WCSS), improves water use efficiency without reducing yield. WCSS method was compared with three widely used conventional irrigation methods, that is, manual scheduling, tensiometer-based scheduling, and weather-based scheduling. Impacts on water savin...

American Scientific Research Journal for Engineering, Technology, and Sciences, 2017

A new sequential singular function algorithm for packing Protocol Description Unit packets in the... more A new sequential singular function algorithm for packing Protocol Description Unit packets in the Short Message Mobile Originated Point-to-Point service is proposed. The single function algorithm simplifies the Short Message Entities programming where ATtention Commands are used to link Switched on Mobile Stations with Service Centers. This is in mode 0 of the short message service transmission. This paper shows that by using, only one single string function, the “ Mid ” or “ Substring” function, it is still possible and is simpler to encode all the metadata contained in the Transport Protocol Data Unit frame of the Submit Protocol Description Unit packet. Our results show that, this proposed algorithm, always outputs 100% perfectly accurate packets for any combination of header and user data payload submitted in hexadecimal octets or decimal semi-octet format. It is thus possible for programmers not only to manipulate the distinct fields of the header data but also to modify the me...

Proceedings of the Future Technologies Conference (FTC) 2021, Volume 1, 2021

Ways of representing and analyzing incomplete information in relational database systems are expl... more Ways of representing and analyzing incomplete information in relational database systems are explored. The relationship between different types of singular, i.e., special, data values is studied. Two new singular values are introduced and the use of a defeasible universal quantifier as a singular value is explored. Other singular values which have been covered in the literature are also reviewed, and emphasis is placed on how all the singular values relate to one another. A singular value see other is introduced. This singular value has an associated function for every attribute in which it can occur. The function indicates where the value which replaces see other comes from. The associated value can come from within the same tuple, from another tuple or from another relation. The previous work has used the closed world assumption, i.e., assertions not known to be true must be assumed to be false. We now consider the singular value open. A set of rules which produces a three valued ...

The Electronic Journal of Information Systems in Developing Countries, 2017

The importance of context specific ICT4D innovation has been highlighted in Information Systems r... more The importance of context specific ICT4D innovation has been highlighted in Information Systems research by the shortcomings of a-contextual innovation. This has often been accepted without due understanding of how to develop context specific interventions. There is therefore a need for a framework that elucidates ICT4D contextualisation and guides the development of context specific interventions. This should be useful to practitioners that are constantly advised to develop context specific artefacts without any clarity of how to do so. Using evidence from Zimbabwe this paper proposes the use of livelihood profiles for identifying the livelihood issues that matter in a particular locality and Sen's Capability Approach for assessing the opportunity freedoms to exploit the local livelihoods. This is presented as a systematic way of establishing the context under which ICT4D interventions will be deployed. The study uses focus groups under an interpretivist paradigm to investigate contextual issues in Zimbabwe Highveld Prime Communal livelihood zone. The study found a politically polarised contextual setting characterised by poor agricultural finance, ineffective crop and livestock markets, unrewarding labour markets against a good agricultural climate that is affected by cyclical droughts. As a result the study posits that ICT4D innovations for the zone must be designed to operate under these realities and limitations.

&amp;quot;Big data research provides unique means to signal opportunities and address cha... more &amp;quot;Big data research provides unique means to signal opportunities and address challenges faced by Mobile Network Operators (MNO) in Africa. This paper premises the idea of creating ‘African-Smart’ mobile networks built around value networks and supported by big data technologies. The proposed approach involves a bottom-up avenue, using raw data from mobile operators. Big data technologies augment research data to extract useful insights that could benefit the MNO operations and African users. The paper flags up a lack of sustainable research collaborations and partnerships between academic institutes and MNO in Africa. It also identifies the lack of instrumentation infrastructure in African institutes and communities. Big data research relies on instrumentation of voluminous and varied data at very high speeds. Africa is challenged in collecting data as most processes are still manually based. This paper proposes to establish Public Private Community Partnerships and invest in the col- lection of data. Such data enables the measuring of the ‘pulse’ of African communities and institutes. MNOs can take advantage by developing African-Smart networks that reflect the African pulse.&amp;quot;

Educating Professionals for Network-Centric Organisations, 1999

This paper describes two types of Computer Science projects that students get involved witk It th... more This paper describes two types of Computer Science projects that students get involved witk It then proposes a monitoring system for projects. The proposed system has been developed and used in the Department of Computer Science at the University of Zimbabwe. The monitoring system involves (a) an effective reporting structure, namely end of task reports and fortnightly reports, (b) three oral presentations, (c) a .final system demonstration. The monitoring system has been used for the past three years and has been found to be very effective.

Journal of Intelligent Information Systems, 1993

This paper surveys machine induction techniques for database management and analysis. Our premise... more This paper surveys machine induction techniques for database management and analysis. Our premise is that machine induction facilitates an evolution from relatively unstructured data stores to efficient and correct database implementations.

Journal of Electronic & Information Systems, 2021

COVID-19 effects have been felt in the education sector worldwide where schools, colleges, and un... more COVID-19 effects have been felt in the education sector worldwide where schools, colleges, and universities were closed as a way to reduce the spread of the deadly pandemic and loss of lives. The Ministry of Higher and Tertiary Education. advocate that no child should be left behind during the COVID-19 era, therefore gave a directive for universities to use other alternative means of teaching and learning to continuously provide teaching and learning to students during the series of lockdown. An efficient eLearning system in universities is very important as an alternative to faceto-face teaching and learning in this COVID-19 era to have continuity in teaching and learning during the induced lockdowns. Success in online learning can be achieved by understanding the level of readiness of online learning environments. The main objective of the study was to evaluate the adoption of online learning by students in Zimbabwean universities. A descriptive online survey employing questionnai...

International Journal of ICT Research in Africa and the Middle East, 2017

Researchers have worked on-finding e-commerce recommender systems evaluation methods that contrib... more Researchers have worked on-finding e-commerce recommender systems evaluation methods that contribute to an optimal solution. However, existing evaluations methods lack the assessment of user-centric factors such as buying decisions, user experience and user interactions resulting in less than optimum recommender systems. This paper investigates the problem of adequacy of recommender systems evaluation methods in relation to user-centric factors. Published work has revealed limitations of existing evaluation methods in terms of evaluating user satisfaction. This paper characterizes user-centric evaluation factors and then propose a user-centric evaluation conceptual framework to identify and expose a gap within literature. The researchers used an integrative review approach to formulate both the characterization and the conceptual framework for investigation. The results reveal a need to come up with a holistic evaluation framework that combines system-centric and user-centric evalua...

Knowledge Management (KM) has come to be regarded as an important activity in today's organizatio... more Knowledge Management (KM) has come to be regarded as an important activity in today's organizations. Technology plays a crucial role in KM of facilitating knowledge flow through the knowledge life cycle. This role is mostly realized by the implementation of a Knowledge Management System. However, the development of these systems is still haphazard, as organizations implement systems that are not guaranteed to enhance knowledge processing activities, and which may not be knowledge management systems at all. Most of these systems are groups of technologies brought together, with no theoretic and/or conceptual framework to justify the way in which they are integrated. The various forms of knowledge are not handled appropriately, as there is no distinction between the processes involved in managing these knowledge forms in the systems. Hence knowledge distribution and use is not done consistently, efficiently, and effectively. There is therefore a need for a reference point from a technical perspective, emanating from a theoretic and conceptual framework that will guide in developing these systems. This reference point is best provided in the form of a generic knowledge management system architecture, which will guide all technological implementations for KM. This paper seeks to outline the need for a generic knowledge management system and what is to be taken into consideration in terms of technical as well as organizational objectives when developing it. The paper also presents some of the quality attributes to be considered in developing the architecture, and the technologies that can be incorporated.

While various organizations have invested in knowledge management (KM), it is not part of day-to-... more While various organizations have invested in knowledge management (KM), it is not part of day-to-day business. Technology plays a major role in KM, aiding in the creation, transfer, sharing and storage of knowledge, making it an integral part of KM processes. technology's involvement in KM and how it can contribute effectively to the KM objectives of the implementing organization. However, there is a lack of depth in the implementations for KM. Most of the there is a weak foundation upon which KM is built. The theoretical framework for technological use in KM is not solidly developed, resulting in an unstructured approach towards This is as a result of the inter-disciplinary nature of KM, which has led to academics concentrating more on certain disciplines contributing to KM, such as management and social aspects of KM, while disciplines information technology (IT) have not received adequate attention and review. There is therefore need to analyze the issues that are of signific...

The emergence of mobile money in Zimbabwe has proved very popular as organisations across sectors... more The emergence of mobile money in Zimbabwe has proved very popular as organisations across sectors try to develop and package the product. This research, carried out through case study and desk research, seeks to establish whether and how the organisations involved meet the operational integration component of the strategic alignment model. Specifically operational fit between organisational and mobile infrastructure and processes through determining mobile money infrastructure and processes and the associated organisational infrastructure and processes within a mobile money ecosystem. The research established that a number of institutions have tried to redesign and repackage the product, but not all were successful. The failure was attributed to improper alignment between the available technologies and organisational processes and infrastructure. The research further exposes that operationally integrated organisations ensures that alignment components involved are adequate and well ...