There is some consensus among researchers that the first urban civilization labeled a ‘city’ was Sumer in the period 3,500–3,000 BC. The meaning of the word, however, has evolved with the advancement of technology. Adjectives such as digital, intelligent, and smart have been prefixed to ‘city’, to reflect the evolution. In this study, we pose the question: What makes a ‘Smart City’, as opposed to a traditional one? We review and synthesize multiple scientific studies and definitions, and present a unified definition of Smart City—a complex concept. We present the definition as an ontology which encapsulates the combinatorial complexity of the concept. It systematically and systemically synthesizes, and looks beyond, the various paths by which theory and practice contribute to the development and understanding of a smart city. The definition can be used to articulate the components of a Smart City using structured natural English. It serves as a multi-disciplinary lens to study the topic drawing upon concepts from Urban Design, Information Technology, Public Policy, and the Social Sciences. It can be used to systematically map the state-of-the-research and the state-of-the-practice on Smart Cities, discover the gaps in each and between the two, and formulate a strategy to bridge the gaps.

The Information Systems Journal (ISJ) published its first issue in 1991, and in 2015, the journal celebrated its 25th anniversary. This study presents an overview of the leading research trends in the papers that the journal has published during its first quarter of a century via a bibliometric and ontological analysis. From a bibliometric perspective, the analysis considers the publication and citation structure of the journal. The study then develops a graphical analysis of the bibliographic material by using visualization of similarities software that employs bibliographic coupling and cocitation analysis. The work produces an ontological framework of impact and analyses the journal papers to assess qualitatively ISJ's impact. The results indicate that the journal has grown significantly over time and is now recognized as one of the leading journals in information systems. Yet challenges remain if the journal is to meet its aims in impacting and setting the agenda for the development of the Information Systems field.

Purpose: Megaprojects are symbolic milestones of human history. Most megaprojects are one-of-a-kind endeavors to which traditional project management principles are neither applicable nor suitable, rendering the holistic study of megaprojects especially difficult. There is no systemic framework that can help systematically assess and guide megaprojects and megaproject research. In the absence of such a framework there is a significant risk of bias in planning the projects and the topics researched. The purpose of this paper is to present an ontological framework of megaprojects and discuss how it can help analyze individual megaprojects and synthesize the corpus of megaproject research.Design/methodology/approach: An ontology framework of megaproject is developed by deconstructing the symbolism and purpose of megaprojects into respective dimensions and their categories. The ontological framework is then used to map the extent literature on megaproject to identify the dominant themes and gaps in the state-of-the-research.Findings: The megaproject research has predominantly focused on select stakeholders (builders, governments, and communities), translation stages (implementation and conceptualization), and sublime (mostly economic). Other aspects of megaprojects have received little or no attention.Originality/value: The paper presents an ontological framework to holistically capture the symbolism and sublime of megaprojects. The framework is complete, expansive, and grounded, yet simple, parsimonious, and innovative. It is a tool for decision makers more than a formal ontology readable by machines.