Evaluating the Impact of Critical Factors in Agile Continuous Delivery Process: A System Dynamics Approach

Continuous Delivery is aimed at the frequent delivery of good quality software in a speedy, reliable and efficient fashion – with strong emphasis on automation and team collaboration. However, even with this new paradigm, repeatability of project outcome is still not guaranteed: project performance varies due to the various interacting and inter-related factors in the Continuous Delivery 'system'. This paper presents results from the investigation of various factors, in particular agile practices, on the quality of the developed software in the Continuous Delivery process. Results show that customer involvement and the cognitive ability of the QA have the most significant individual effects on the quality of software in continuous delivery

What a Difference a DV Makes ... The Impact of Conceptualizing the Dependent Variable in Innovation Success Factor Studies

The quest for the "success factors" that drive a company's innovation performance has attracted a great deal of attention among both practitioners and academics. The underlying assumption is that certain critical activities impact the innovation performance of the company or the project. However, the findings of success factor studies lack convergence. It has been speculated that this may be due to the fact that extant studies have used many different measures of the dependent variable "innovation performance". Our study is the first to analyze this issue systematically and empirically: we analyze the extent to which different conceptualizations of the dependent variable (a firm's innovation performance) lead to different innovation success factor patterns. In order to do so, we collected data from 234 German firms, including well-established success factors and six alternative measures of innovation performance. This allowed us to calculate whether or not success factors are robust to changes in the measurement of the dependent variable. We find that this is not the case: rather, the choice of the dependent variable makes a huge difference. From this, we draw important conclusions for future studies aiming to identify the success factors in companies' innovation performance

BCAS: A Web-enabled and GIS-based Decision Support System for the Diagnosis and Treatment of Breast Cancer

For decades, geographical variations in cancer rates have been observed but the precise determinants of such geographic differences in breast cancer development are unclear. Various statistical models have been proposed. Applications of these models, however, require that the data be assembled from a variety of sources, converted into the statistical models’ parameters and delivered effectively to researchers and policy makers. A web-enabled and GIS-based system can be developed to provide the needed functionality. This article overviews the conceptual web-enabled and GIS-based system (BCAS), illustrates the system’s use in diagnosing and treating breast cancer and examines the potential benefits and implications for breast cancer research and practice

THE role of the technology acceptance model in information systems research: a case study

Explaining the factors that lead to use and acceptance of information technology (IT), both at individual and organizational levels, has been the focus of information systems (IS) researchers since 1970s. The Technology Acceptance Model (TAM) is known as such an explanatory model and has increasingly gained recognition due to its focus on theories of human behaviour. Although this model has faced with some criticism in terms of not being able to fully explain the social-technical acceptance of technology, it is still known as one of the best IS methodologies that contributes greatly to explaining it. This paper discusses, describes and explains TAM as one of the well-known information system research methodologies and attempts to demonstrate how this model can be applied in practice in IS research projects. TAM is widely used in different areas of IS studies such as e-commerce, e-business, multimedia and mobile commerce. This paper shows how TAM can be applied in an IS research project by referring to a case study conducted in the area of mobile banking in the UK. This paper aims to contribute to IS research by providing an informed criticism of TAM as well as a clear proposal on how to use it

A systematic review of software development cost estimation studies

This paper aims to provide a basis for the improvement of software estimation research through a systematic review of previous work. The review identifies 304 software cost estimation papers in 76 journals and classifies the papers according to research topic, estimation approach, research approach, study context and data set. A web-based library of these cost estimation papers is provided to ease the identification of relevant estimation research results. The review results combined with other knowledge provide support for recommendations for future software cost estimation research, including: 1) Increase the breadth of the search for relevant studies, 2) Search manually for relevant papers within a carefully selected set of journals when completeness is essential, 3) Conduct more studies on estimation methods commonly used by the software industry, and, 4) Increase the awareness of how properties of the data sets impact the results when evaluating estimation methods

Reforming tax systems - the World Bank record in the 1990s

The main constraint on world Bank operations in tax and customs administration is the Bank's inadequate institutional framework for accumulating knowledge from loan operations, concludes this review of the Bank's record on reform of tax systems in the 1990s. The Bank's theoretical basis for reforming tax and customs administration is still rudimentary. Recent theories stress the importance of institutions that harness voice and improve transparency and contestability, but there is little evidence that reform of these factors alone makes tax administration more effective. Improvements are needed in pre-project diagnosis and project design, especially for examining accountability, administration costs, managerial autonomy, performance incentives for staff, taxpayer equity and services, and environmental factors. Pre-project work could draw more systematically on lessons from previous experience. Institutional components of project design have been biased toward organization, manpower upgrading, and procedures related to information technology. Too little attention has been paid to improving accountability, administrative cost-effectiveness, and anticorruption institution-building. Projects have made inadequate use of different kinds of performance indicators, with little uniformity in those applied. Methods used to evaluate project outcomes could be better and more uniform. Suggestions for future Bank operations: 1) doing better background work and articulating a strategy and comprehensive framework for Bank involvement in reform of tax administration. 2) Possibly supporting and strengthening regional tax administration associations, which could serve as catalysts for change. 3) Strengthening partnering and supporting private sector consultant organizations, so they can manage major components of administrative reform. 4) Institutionalizing the accumulation of knowledge about tax administration (which might require changing staff recruitment, the mix of staff skills, and training plans). The authors provide recommendations for improving project diagnosis, design, performance indicators, and appraisal, as well as a short list of projects that serve as guides to good practice.Enterprise Development&Reform,Decentralization,Public Sector Economics&Finance,Banks&Banking Reform,Municipal Financial Management,Banks&Banking Reform,National Governance,Public Sector Economics&Finance,Municipal Financial Management,Tax Policy and Administration