Against the backdrop of increasing adoption of e-Procurement in supply chain management, there is a need for adequate knowledge of the factors that influence the decision by organizations in the building industry to use e-Procurement. This study aims to fill the knowledge gap through investigating the factors influencing e-Procurement adoption based on the data sourced in a questionnaire survey involving 213 organizations in the building industry. The survey was conducted between June and November 2015 in Nigeria. Descriptive statistics, factor and categorical regression analyses were used to analyze the data. The results show that the three most important factors influencing the adoption of e-Procurement amongst the participants, in order of importance, were: the benefits of e-Procurement in enhancing efficiency in project delivery; eliminating geographic barriers and effective communication among project team members. The 29 factors were investigated in seven different dimensions - the benefits of e-Procurement use; level of awareness on e-Procurement in construction; and the availability and cost of e-Procurement applications emerged as the three most significant predictors of e-Procurement adoption in the survey. The study concludes by identifying strategies that should be engaged in increasing the uptake and maximizing the benefits of e-Procurement in the Nigerian building industry.

The use of electronic (e-­) procurement to support the execution of supply chain management activities in the different industrial sectors is permeating all regions of the world. However, in countries in sub-Saharan Africa where there is a significant level of corruption and unethical practices in the procurement process, there is a need for a better understanding of how e-Procurement can help to check the incidence of corrupt and unethical practices in construction project delivery. This study relied on a cross-sectional survey of 759 respondents, including architects, builders, engineers, estate/facilities managers, contractors, construction/project managers, quantity surveyors, supply chain managers and others to identify and analyse the anti-corruption capabilities of e-Procurement in construction project delivery in Nigeria. The results of the descriptive statistics, relative importance index and principal components analysis identified 18 anti-corruption capabilities in e-Procurement in construction project delivery with the three most important ones being the capability of e-Procurement to ensure good inventory management/record keeping; accountability by providing audit services trail and minimise direct human contacts during bidding. The key underlying dimensions of these capabilities include the advantage of e-Procurement over the traditional paper-based method; transparent bidding process and increase in competition in construction project delivery process. The findings of this study have implications, especially, on the use of e-Procurement to curb corruption in construction procurement activities.

The adoption of e-Procurement in construction is gaining global acceptability, but in a developing country like Nigeria, there is a paucity of studies on the e-Procurement tools/applications used by construction industry stakeholders and their experiences with this technology. This study investigated e-Procurement adoption and users' experience with it in the Nigerian construction industry using a questionnaire survey of 759 users of e-Procurement. The data were analyzed using descriptive statistics and factor analysis and the results show that whereas relatively high usage of e-Procurement tools in sending and receiving information on tender opportunities, tendering, and making and receiving payments for construction procurement transactions was observed, the use of this technology in monitoring the progress of work on construction sites or tracking the movement of materials was very low. It was also observed that users' experience with e-Procurement in Nigeria was influenced by the adequacy and reliability of Internet infrastructure and ease of use of the technology, operational environment, change management issues, benefits of the technology, and the availability, accessibility, and interoperability of e-Procurement systems. The study implies that in order to ensure sustained use of e-Procurement in Nigeria's construction sector, adequate attention should be given to these factors that influence users' experience.

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e-Procurement tools build on traditional methods of procurement by integrating the processes and people involved in construction businesses through Internet-supported information and communication technologies. In spite of how crucial these tools are there is a need to for strategic management decision making before they are procured and used because of the cost and technical implications involved. The study examined the gauging parameters for e-procurement acquisition in the construction businesses by firms and organisations in Nigeria. The study utilized a survey approach of actual users of e-procurement tools and technologies in the Nigerian construction industry. A total of 759 actual users were identified from several cities in the study area. Data obtained were analyzed in stacked bars, frequencies and categorical regression. The study presented the significant gauging parameters that can influence e-procurement technology acquisition. They include staff strength of the construction business, presence of quality internet facilities, security level and validation capacity of e-procurement transactions, supportive policy and legislative framework in e-procurement usage and computer literacy level of construction stakeholders participating in an eprocurement environment. In conclusion, the study developed a framework to guide construction businesses in e-procurement technology acquisition. Every construction organization should have unique metrics for measuring and predicting technology acquisition in order to avoid obsolescence and waste of scarce resources. There is a need for supportive policies and legislative frameworks that encourage e-procurement usage among construction stakeholders in the different countries.