The Impact of Agile Methodologies and Cost Management Success Factors: An Empirical Study

تعد إدارة تكلفة البرامج ميزة هامة لإدارة المشاريع. على هذا النحو ، يجب أن تستخدم في مشروع أو خط عمل. تعد إدارة تكلفةالبرامج جزءًا لا يتجزأ من إخفاقات تطوير البرامج ، والتي بدورها تتسبب في فشل البرنامج. وبالتالي، من الضروري أن يطور المهنيون فيمجال تطوير البرمجيات مهاراتهم في إدارة التكاليف لتقديم مشاريع برمجية ناجحة. الهدف من هذه الدراسة هو دراسة تأثير عوامل النجاح فيإدارة التكاليف مع عوامل إدارة المشروع وثلاث منهجيات ذكية منهجيات البرمجة المتطرفة - (XP) و Scrum و Kanban التي تستخدم فيصناعة البرمجيات الباكستانية. ولتحديد النتائج، طبق الباحثون منهجًا كميًا من خلال مسح موسع ل 52 شركة لتطوير البرمجيات الذكية فيباكستان. تم إجراء التقنيات الإحصائية، مثل ارتباط بيرسون والانحراف المعياري والمعياري لفحص النتائج. بعد هذا التحليل، وجدنا أن إدارةالتكاليف لها تأثير إيجابي على عوامل إدارة المشاريع الأخرى، وهي الجدول الزمني، والمجال، والمخاطر، والموارد، والجودة. علاوة علىذلك، فقد تقرر أن أداء كانبان (Kanaban) بشكل عام أفضل من سكروم (Scrum) وإكس بي (XP) في سياق عوامل إدارة المشروعSoftware cost management is a significant feature of project management. As such, it needs to be employed in a project or line of work. Software cost management is integral to software development failures, which, in turn, cause software failure. Thus, it is imperative that software development professionals develop their cost management skills to deliver successful software projects. The aim of this study is to examine the impact of cost management success factors with project management factors and three agile methodologies – Extreme Programming (XP), Scrum and Kanban methodologies which are used in the Pakistani software industry. To determine the results, the researchers applied quantitative approach through an extensive survey on 52 agile software development companies in Pakistan. Statistical techniques, such as Pearson’s correlation and mean and standard deviation were performed to examine the results. Following this analysis, we found that cost management has a positive effect on other project management factors, which are schedule, scope, risk, resources, and quality. Furthermore, it is determined that, in general, Kanban performed better than both, Scrum and XP in the context of project management factors

The impact of agile methodologies and cost management success factors: an empirical study

Software cost management is a significant feature of project management. As such, it needs to be employed in a project or line of work. Software cost management is integral to software development failures, which, in turn, cause software failure. Thus, it is imperative that software development professionals develop their cost management skills to deliver successful software projects. The aim of this study is to examine the impact of cost management success factors with project management factors and three agile methodologies – Extreme Programming (XP), Scrum and Kanban methodologies which are used in the Pakistani software industry. To determine the results, the researchers applied quantitative approach through an extensive survey on 52 agile software development companies in Pakistan. Statistical techniques, such as Pearson’s correlation and mean and standard deviation were performed to examine the results. Following this analysis, we found that cost management has a positive effect on other project management factors, which are schedule, scope, risk, resources, and quality. Furthermore, it is determined that, in general, Kanban performed better than both, Scrum and XP in the context of project management factors

Use of mobile applications in citizen security

"An abstract is often presented separately from the article, so it must be able to in the following article the use of the mobile application is recommended as a tool that serves public safety because currently crimes of extortion and fraud are committed by making false calls to people's mobile devices. Therefore, the objective of this research is to help families with their welfare and safety and motivate the use of mobile applications. In the present work the situation, task, action, dan result (STAR) methodology was applied to elaborate the present work, this technique will allow improving the difficulties of the people. This methodology is very important because it is used to evaluate the circumstances in which people find themselves, a sequence must be followed to achieve the proposed objectives. The result obtained is an average of 84.5% on the design of the mobile prototype; being approved by the experts. The beneficiaries of the research are citizens through the mobile application.

Development of a Mobile Calories Monitoring Application for Linux Ubuntu Touch

The need to complement the offer of applications in the Ubuntu Touch store represents an opportunity to develop innovative applications of interest to the community of potential users. This article describes the work carried out within the scope of a master\u27s thesis where an open-source application was developed to monitor the calories consumed daily by a user. As a development process, Scrum Solo was used. The application\u27s functional and non-functional requirements were defined by several product owners, all of which were implemented. After a period of preliminary tests, it was concluded that the developed application presents relevant and differentiating features from other similar applications available in the Ubuntu Touch store

Quantum Software Engineering: A New Genre of Computing

Quantum computing (QC) is no longer only a scientific interest but is rapidly becoming an industrially available technology that can potentially tackle the limitations of classical computing. Over the last few years, major technology giants have invested in developing hardware and programming frameworks to develop quantum-specific applications. QC hardware technologies are gaining momentum, however, operationalizing the QC technologies trigger the need for software-intensive methodologies, techniques, processes, tools, roles, and responsibilities for developing industrial-centric quantum software applications. This paper presents the vision of the quantum software engineering (QSE) life cycle consisting of quantum requirements engineering, quantum software design, quantum software implementation, quantum software testing, and quantum software maintenance. This paper particularly calls for joint contributions of software engineering research and industrial community to present real-world solutions to support the entire quantum software development activities. The proposed vision facilitates the researchers and practitioners to propose new processes, reference architectures, novel tools, and practices to leverage quantum computers and develop emerging and next generations of quantum software

An ontology-based semantic building post-occupancy evaluation framework and its application

This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University LondonCatering to sustainable development in Architecture, Engineering and Construction (AEC) industry, many building performance evaluation (BPE) schemas have been developed to support building assessment and aim to narrow down the performance gap. Post-Occupancy Evaluation (POE), viewed as a sub-process of BPE, is a systematic method to obtain feedback on building performance in use. However, building evaluation is a complex and knowledge-intensive process with scattered and fragmented knowledge, it is time-consuming and error-prone to acquire explicit knowledge. Benefiting from the advantages of Semantic Web technology in knowledge conceptualization, ontology, as the core of the Semantic Web, has been widely taken as an effective method for knowledge management, information representation and extraction, and logical inference in the AEC industry, especially in the BPE field. However, most of the existing ontologies in the AEC industry are lightweight ontologies that mainly focus on building a structured system to represent the specific domain knowledge or information, without developing formal axioms and constraints to provide higher expressivity. Moreover, the research focus of ontology in building assessment is mainly on energy-related fields, and there is not a comprehensive POE ontology yet, especially with the focus on building occupant satisfaction, which is the starting point of this research. This research develops an ontology-based post-occupancy evaluation framework dedicated to building performance assessment, with the ultimate aim of optimizing building operation and improving building occupants' use experience quality and well-being. In the developed framework, a heavyweight ontology is developed to structure the fragmented building performance assessment knowledge in the POE domain. In POE ontology, the building occupants' needs for building performance are generalized and classified, and the corresponded building performance assessment knowledge is formalized. In addition, a set of SWRL (Semantic Web Rule Language) rules and SQWRL (Semantic Query-Enhanced Web Rule Language) query rules are developed based on the benchmarking evaluation axioms to enable automatic rule-based reasoning and query in different identified application scenarios. This ontology model enables effective POE-related knowledge retrieving and sharing, and promotes its implementation in the POE domain. To validate the developed framework, a case study is carried out facilitated by the Building Use Studies (BUS) Methodology to illustrate its feasibility and effectiveness in different application scenarios. This research concludes that the proposed ontology-based POE framework has the capability to conduct a multi-objective and multi-criteria POE assessment at the building operation stage and provide a multi-criteria optimised solution

A computational and empirical analysis of the thermal performance of insulating concrete formwork

The research presented in this EngD thesis focused on Insulated Concrete Formwork (ICF), a site-based, Modern Method of Construction (MMC). An ICF wall consists of modular prefabricated Expanded Polystyrene Insulation (EPS) hollow blocks and cast in situ concrete. The blocks are assembled on site and the concrete is poured into the void. Once the concrete has cured, the insulating formwork stays in place permanently, providing very low U-values and high levels of airtightness. ICF is often thought of as just an insulated panel acting thermally as a lightweight structure. There is a view that the internal layer of insulation isolates the thermal mass of the concrete from the internal space and interferes with thermal interaction. Despite evidence of ICF’s enhanced thermal storage capacity (compared to a lightweight timber-frame panel with equivalent insulation), there is still a gap in understanding when attempting to quantify the effect of the thermal mass within ICF.Using computational analysis (Building Performance Simulation - BPS) and empirical evaluation (monitoring data), the aim of the EngD research was to analyse the aspects that affect the thermal performance of ICF; to develop an understanding about its thermal behaviour and its response to dynamic heat transfer; and, to investigate how the latter is affected by the inherent thermal inertia of the concrete core. [Continues.]</div

Online citizen science projects: an exploration of motivation, contribution and participation

The number of online citizen science projects has increased significantly over the past decade, yet some aspects of participation are poorly understood as is the motivation behind the involvement of the scientists who set up these projects, and the citizen scientists who take part. This thesis explores three different online citizen science projects (Foldit, Folding@home and Planet Hunters) using a case study approach and data collected through online surveys, interviews and participant observation. It explores the motivations that initiate and sustain participation, and it examines the various ways individuals can contribute to these projects. It also investigates how participants (both professional scientists and citizen scientists) interact online. A number of theoretical models of motivation and participation are considered. While many individuals register to take part in these projects, only a small proportion become active participants. These active citizen scientist volunteers are motivated to participate because they want to make a contribution to science or have a background interest in science. Scientists set up these projects in order to get help analysing large volumes of data, particularly those that require human pattern recognition or problem-solving skills. The complexity of the project task and the presence of certain technological features can affect how participants interact with each other, and how they contribute. Tasks that are complex are more likely to present opportunities for cooperation and collaboration, and may foster the development of online communities of practice. The findings of this research suggest that online citizen science projects have been important in making scientific research more open for a number of distributed volunteers. These individuals have responded to the challenges presented by these projects, increasing their scientific and technical understanding, and self-organising into various roles and teams in order to produce new knowledge

Incentive Mechanisms and Quality Assurance for Peer Production

We investigate quality assurance and motivation in peer-production settings. We focus on the collaborative creation of structured knowledge. We study, how rating-based incentive mechanisms can increase the quality of the knowledge created. Further, we study how to increase the classification accuracy, in particular the presence of low-competence raters. Finally, we analyze how authors of a scientific conference rate peer reviews, and how authors\u27 ratings can increase the quality of the reviews