Bio

Publications


2017

Gichamba, A, Wagacha PW, Ochieng DO.  2017.  An Assessment of e-Extension Platforms in Kenya. International Journal of Innovative Studies in Sciences and Engineering Technology . 3(7):36-40. Abstractfull text link

The use of ICT in agriculture within
developing countries has quickly gained popularity
among development agencies, the private sector and
even the government. ICT for agriculture (ICT4Ag)
services such as trade platforms, notification platforms
and advisory/extension services have been developed.
This has been catalyzed by the growing number of
farmers with access to ICT devices such as mobile
phones. Among the available services, advisory/extension
platforms have gained popularity among farmers and
agriculture stakeholders in the developing world. These
platforms have proven to be of importance to farmers
who are curious about new farming methodologies,
strategies to improve their yields, breeding techniques,
among other factors. The ICT platforms employed
include SMS, mobile applications, Interactive Voice
Response systems, social media platform such as
Facebook and Twitter, chat applications such as
Whatsapp, blogs, radio programs and tv programs. The
aim of this research was to assess the e-Extension
platforms used in Kenya, whose purpose is to advise
millions of farmers across different parts of the country
using ICT platforms. 28 government e-Extension officers
employed to advise farmers using ICT platforms were
interviewed. The officers represented 15 different
counties in Kenya. The study made important findings
that would inform the government, agriculture extension
content providers, and other stakeholders on critical
aspects to be considered in deploying and managing eextension
platforms among a population of diverse users
within a developing country.

KARURI, J, Waiganjo P, Daniel ORWA.  2017.  Determinants of Acceptance and Use of DHIS2 in Kenya: UTAUT-Based Model. Journal of Health Informatics in Developing Countries. 11(1) Abstractfull text link

Background: In 2010, Kenya initiated the process of adoption and implementation of a web-based system (DHIS2) as the national HIS to facilitate management of routine health information for evidence-based decision making. To reap maximum benefit from this implementation, DHIS2 needed to gain acceptance from all categories of targeted users. This study, conducted between June and August 2014, sought to develop a new technology acceptance model that can better explain the key determinants of acceptance and use of DHIS2 in Kenya.
Methods: The model was adapted from the Unified Theory of Acceptance and Use of Technology (UTAUT). An exploratory study was conducted primarily through the use of quantitative methods, but qualitative Key Informant Interview (KII) data was also collected in a pre-study to provide the background and contextual information used in refining the model. In the main phase of the study, a questionnaire was administered to health workers through cross-sectional survey both at national and regional levels.
Results: The total number of valid questionnaires returned was 269 against the 300 that were issued. This number represents slightly more than 20% of the approximately 1,100 health workers who have been trained on DHIS2 in Kenya, and these were drawn from at least 10 of Kenya’s 47 counties. Analysis of the survey data was done in two parts: descriptive analysis was performed using SPSS statistical analysis tool for the purpose of obtaining frequencies, means, standard deviation, skewness and kurtosis. Subsequently Structural Equation Modeling (SEM) and specifically Partial Least Square path modeling (PLS), was used to analyze the conceptual model and test the proposed hypotheses.
Conclusion: The resulting model revealed that social influence was the most pertinent predictor of behavioral intention in the study setting, while facilitating condition and computer anxiety play a significant role in predicting actual use of DHIS2. Findings from this case study can be extended to explain acceptance and use of health IT in other similar settings. Future research can test more variables and moderators to increase the overall predictive levels of the model.

Ngaruiya, N, Orwa D, Waiganjo P.  2017.  Towards a Deployment Model for eMonitoring of Geriatric Persons in Rural Developing Countries: Case of Kenya, 31 May - 02 June. https://www.researchgate.net/publication/317291029. 1, Namibia Abstract

The United Nations and the African Union considers a person aged 65
years and above as a geriatric person. The graying population over the past decades
is showing an exponential growth rate compared to the declining fertility rate. This
population in the developing countries is not boastful of active ageing (successful,
independent ageing) as they are challenged by various health issues and
psychosomatic conditions. They require constant care and in some cases, specialized
care in familiar environments (their homes with relatives) or nursing homes (called
Nyumba za Wazee in Kenya). The researchers with support from literature believe
that technology can offer this specialized care (E-monitoring). This would be offered
in the comfort of their homes through continuous assessment of the geriatric person
relaying information to both the formal and informal caregivers. The objective of this
paper is to explore, summarize and analyse the various technologies in gerontology,
acceptance and adoption models, with the aim of identifying a suitable deployment
model that could be adopted in the context of a developing country.

Klopp, J, Orwa D, Wagacha PW, Williams S, White A.  2017.  Informal 2.0: Seeing and Improving Urban Informal Practices through Digital Technologies The Digital Matatus case in Nairobi. Field Actions Science Reports. The journal of field actions. (16):39-43. Abstractfull text link

Conceived out of collaboration between Kenyan and American universities and the technology sector in Nairobi, Digital Matatus shows how to leverage the ubiquitous nature of cellphone technology to collect missing data for essential infrastructure - including those with high levels of informality. The project captured transit data in standardized form for Nairobi’s semi-formal bus system, developed the first public transit map for such a system and made the map and data free to the public, spurring innovation and improved services for citizens.
While most cities develop sophisticated IT projects to make their organization smarter, the Digital Matatus case suggests the value of a much more modest and bottom-up approach: it encourages reliance on common technologies like cellphones to understand and improve existing urban services – that often involve informality – in emerging countries. By developing the first-ever high quality data set and map of the Matatu network (very common semi-informal mini-buses in Kenya), the projects promotes a new, low-cost and more practical vision of smart and transit-oriented cities.

2013

Orwa, OD.  2013.  User-Centric ICT Adoption Model for Rural Farming Communities in Kenya. IST Africa Conference 2013. , Nairobi Kenya: IST Africa

2012

Atieno, LV, Moturi CA, Wagacha PW, Orwa DO, Ogutu JO, Wausi A.  2012.  Successful Implementation of Digital Village Projects: A Factor to Economic Empowerment at the Community Level.
Orwa, OD.  2012.  User-Centric ICT Adoption Model for Rural Farming Communities in Kenya. , Nairobi: University of Nairobi
Orwa, OD, Mwololo WT, Okoyo OJ.  2012.  Mobile Interfaced Crop Diagnostic Expert System. Internal Journal of Services Economics and Management. 4(1):4-26.

2011

Orwa, OD, Okoyo OJ.  2011.  Mobile Interfaced Crop Diagnostic Expert System. : University of Nairoboi

2009

Orwa, OD.  2009.  Innovative Design Approach for User Interfaces for Rural Farming Communties in Kenya, 5th July 2009. CHI 2009 . , Boston MA, USA

2008

Orwa, OD, Sarah K, Nelson C.  2008.  Remote 3D Recosntruction System . COSCIT 2007. :91-97., KCCT Nairobi: COSCIT
Orwa, OD, JDMoore.  2008.  Regional and Cultural Accessibility for the Java Micro Edition Africa, May. JavaOne. , San Francisco, USA
Orwa, OD, Lucy M.  2008.  Innovative Design Approach for Technology Adoption for Semi-illiterate Users in Rural Kenya, April. HCI for Community and International Development. , Florence Italy

2005

Orwa, OD.  2005.  Reform in Kenya's Education Sector; Case for Use of ICT, December 2005. :5-12., Nairobi, Kenya: NEPAD

2004

Orwa, OD.  2004.  SIDA ICT Survey for the Governance, Law and Order Sector (GJLOS), October 2004. :1-76., Nairobi Kenya: Swedish International Development Agency

2003

Orwa, OD.  2003.  ICT in Kenya's Economic Recovery, October 2003. :24-25., Nairobi: KEPSA and UNDP

1996

Orwa, OD.  1996.  Multi-User Remote Processing System. , China: Shanghai University

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