فیلترهای جستجو:
فیلتری انتخاب نشده است.
نمایش ۳۲۱ تا ۳۴۰ مورد از کل ۲٬۹۱۰ مورد.
حوزههای تخصصی:
From the recent literature review, it is evident that existing agile methodology lacks the method to evaluate the requirement understanding of agile team members for a given set of requirement chosen for agile software development. Hence, there is a need to introduce a requirement understanding check to ensure every agile team member follows the given requirement clearly without any ambiguity. To fill this existing gap, this research paper proposes to extend the usage of story cards to evaluate the understanding of the given requirement and to highlight any challenges and risks in the early stage of requirement understanding under agile software development methodology, if any. This paper primarily focuses to introduce a robust requirement understanding evaluation process in agile methodology. The research results were found to be motivating and were analyzed by comparing the data-points using time-series for performing agile query analysis, agile team velocity analysis and agile team involvement analysis for two agile teams where one team delivered the sprint output using agile traditional method while another team opted for proposed approach. A considerable decrease of 33.07% was observed in the number of queried raised and a significant increase of 26.36% in agile velocity was observed for agile sprint under proposed approach when compared to agile traditional approach. Also, a significant shift from 40%-80% team involvement under traditional agile method was uplifted to 80%-90% team involvement under proposed approach.
Solar Powered Automated Hydroponic Farming System with IoT Feedback(مقاله علمی وزارت علوم)
حوزههای تخصصی:
This paper presents implementation of cost-effective solar powered hydroponic system with Internet of Things (IoT) for online and remote checking and controlling the system operation. The objective was to take advantage of the abundant solar energy while incorporating IoT platform into the system. The system is made up of power supply unit, control unit, Wi-Fi unit, input unit and output unit. The system monitored temperature, humidity and volume of the nutrient solution and at the same time sent online messages to the farmer. The test carried out showed that the system is working and the readings obtained online showed a ± 1% variation from the physical measurement done remotely with meters. This implies that the online control of the system operation was effective
Analysis of Revocation Mechanisms for Blockchain Applications and a Proposed Model Based in Self-Sovereign Identity(مقاله علمی وزارت علوم)
منبع:
Journal of Information Technology Management , Volume ۱۴, Special Issue: The business value of Blockchain, challenges, and perspectives, ۲۰۲۲
191 - 210
حوزههای تخصصی:
The blockchain's immutability has allowed previously centralized operations to operate in a new way. The possibility of applications having a new architecture is given thanks to the innovative properties of the technology, which brought alternative control designs for distributed systems and allowed applications to work without the need for a central controlling point. The expansion of blockchain to other areas beyond cryptocurrencies has shown the need for applications to implement solutions to deal with corrective operations. Blockchain 3.0 applications bring new solutions for business needs. However, as opposed to immutability, the revoking functionality is much more complex to be implemented in this type of architecture, but paramount to applications resilience, allowing faulty or invalid information to be revoked, ensuring thus that the blockchain can still be trusted. This work assesses and discusses revocation mechanisms to contribute to the technical feasibility of several applications, which require corrective operations. We present a model in the academic area, which can be replicated for other types of systems in other areas.
Graph-Based Extractive Text Summarization Models: A Systematic Review(مقاله علمی وزارت علوم)
حوزههای تخصصی:
The volume of digital text data is continuously increasing both online and offline storage, which makes it difficult to read across documents on a particular topic and find the desired information within a possible available time. This necessitates the use of technique such as automatic text summarization. Many approaches and algorithms have been proposed for automatic text summarization including; supervised machine learning, clustering, graph-based and lexical chain, among others. This paper presents a novel systematic review of various graph-based automatic text summarization models.
Impact of ecological exploration processes on the development of scientific investigation approach (DIS) and personal action projects among high school students: A tool for reflection on classroom practices Case of an ecological school trip in a natural environment(مقاله علمی وزارت علوم)
حوزههای تخصصی:
The teaching of SVT in general offers learners an environment that allows them to explore and explain natural phenomena, to understand different spatio-temporal scales, to understand the world around them so that they can decide and act responsibly. It is interesting to note that the scientific ecological outing (SES) is an integral part of the SVT teaching program, at both college and qualifying secondary level, and that teachers are called to organize these outings in agreement with the programs as recalled by the circulars of the MEN. However, the SES allows the real observation and the execution of experiential practices in the field, it is the opportunity to place the learner in a learning situation according to a reflective and investigative scientific approach from his confrontation with reality Cariou J (2013), (2015) Offers a didactic framework and formalizes evaluation criteria for the implementation and management of a scientific investigation process. So that he can make connections with what the learner acquires as abstract knowledge in class in order to be able to decide and act responsibly and critically on the scale of everyday situations as an Eco citizen.
Factors Effecting the Adoption of E-Learning: An Empirical Study of Libyan Universities(مقاله علمی وزارت علوم)
حوزههای تخصصی:
The main aim of this thesis is to investigate the factors that could affect the students to adopt e-learning system in Libyan universities. This study is quantitative approach, a questionnaire was adopted from previous studies and distributed among the students to collect the data. The sample of the study consists 365 students from Libya. AMOS software was used to analysis the data. The results indicated that Performance Expectancy, Efforts Expectancy, Facilitating Conditions, Habit and Trust have significant impact on behavioural intention. Moreover, the relationship between Behavioural intention and use behaviour is also significantly positive. However, the relationship of social influence and behavioural intention was not found significant. Finally, the moderation effect was significant and supported between social influence, trust, and Habit with behavioural intention.
Balancing Interests in the Field of Tourism Based on Digital Marketing Tools(مقاله علمی وزارت علوم)
حوزههای تخصصی:
Digital technologies are actively implemented in all areas of tourism. The article identifies the main areas of balancing interests in the field of tourism on the basis of optimization of digital marketing tools. Analytical research has shown that a set of sales channels in the Internet environment and a set of tools are formed, depending on the marketing strategy of the travel company. The main tactics and tools of digital marketing in tourism are highlighted. These are: the company's website, digital marketing channels - online channels for promoting and attracting customers: SEO, online advertising, email marketing, sales funnel, content marketing, teaser advertising, SMM, etc. The study proposes the application of portfolio investment theory to optimize investment in digital marketing tools to achieve a specific goal. The article uses a method of building a mathematical model that will optimally distribute financial investments in digital marketing. Thus balancing of interests in the field of tourism on the basis of digital marketing tools is offered on the basis of KPI indicators, according to the allocated purposes.
A secure and robust stereo image encryption algorithm based on DCT and Schur decomposition(مقاله علمی وزارت علوم)
حوزههای تخصصی:
Security solutions of stereo images are always a major concern during the transmission and communication. In this manuscript, a simple yet efficient framework for encrypting stereo images is formulated using discrete cosine transform (DCT), generalized logistic map, Schur decomposition and magic square method. The framework initiated with the integration of DCT and generalized logistic map to unify both pair of images. This unified image is then encrypted using the Schur decomposition and magic square method. The various experiments and analysis have been done to explore the validity, proficiency and performance of the purport framework.
Geographic Routing Scheme for Resource and Communication Efficiency in the IoT Ecosystem using Swarm-Intelligence based BFO Algorithm(مقاله علمی وزارت علوم)
حوزههای تخصصی:
Wireless sensor networks (WSNs) are the sensor nodes that are generally interconnected and these nodes communicate wirelessly to collect the data from the environment around them. Sensor nodes are low-powered and distributed in a decentralized ADHOC manner. WSNs setup comes with some limitations such as energy constraints and the cooperative demands essential to perform multi-hop geographic routing for Internet of things (IoT) applications. Quality of Service (QoS) depends to a great extent on offering participating nodes an incentive for collaborating. The real-time applications of WSNs have potential design limitations such as energy and other QoS constraints in the context of IoT. This work formulates two different re-transmission strategies for optimized cross-layer design and also integrates the framework with a swarm intelligence technique assisted Bacteria Foraging Optimization (BFO) for efficient Cluster Head (CH) selection. The proposed work designs analytical modelling to realize the formulated concept and also simulates the computational design in a numerical computing tool. Finally, an extensive simulation is carried out using the MATLAB simulation tool. The obtained results show the effectiveness of the proposed system in terms of delay is reduced by 12%, throughput is increased to 10%, remaining energy of the network is increased to 11%, and packet delivery ratio of the proposed work in increased to 7-9% in comparison with the existing system.
Theoretical, Methodological, Communication and Information Technologies Approaches to Modeling and Forecasting Personnel Education in Covid-19 Conditions(مقاله علمی وزارت علوم)
حوزههای تخصصی:
The article is devoted to solving the problems of predicting the education of Ukrainian staff in the current COVID-2019 conditions in order to improve the efficiency of their work. Theoretical approaches regarding the characteristics of modeling and prediction of education have been studied, systematic and summarized. Factors that significantly complement the theory and methodology of the scientific provisions of the economy have been identified, taking into account the peculiarities of their work in the modern economic environment, structural changes, and new changes. The pros and cons of studying modeling approaches have been identified. The main features of structural change have been studied and it has been established that the modeling and forecasting of staff education has significant features.
بررسی نقش جوّ مسموم سازمان در تسهیم دانش با میانجی گری حمایت سازمانی ادراک شده در مؤسسات آموزشی(مقاله علمی وزارت علوم)
منبع:
مدیریت دانش سازمانی سال پنجم بهار ۱۴۰۱ شماره ۱۶
43 - 72
حوزههای تخصصی:
هدف این پژوهش شناسایی تأثیر جو مسموم سازمانی و حمایت سازمانی ادراک شده بر تسهیم دانش است. از نظر هدف، یک تحقیق کاربردی و از منظر روش گردآوری داده ها توصیفی- همبستگی است. جامعه آماری این مطالعه ۱۶۴۸ نفر از کارکنان مؤسسات آموزشی شهرستان سراب است. با توجه به جدول کرجسی و مورگان حجم نمونه ۳۱۳ نفر تعیین و با روش نمونه گیری طبقه ای انتخاب شد که بعد از حذف داده های پرت، تعداد نمونه به ۲۴۸ نفر رسید. داده ها با استفاده از پرسشنامه های استاندارد جو مسموم سازمانی روستایی، تسهیم دانش دیکسون و پرسشنامه استاندارد حمایت سازمانی ادراک شده گردآوری شد که بر مبنای مدل آلن و همکاران طراحی و اعتباریابی شده بود. تجزیه وتحلیل داده ها با بهره گرفتن از آزمون همبستگی پیرسون و مدل سازی معادلات ساختاری انجام گرفت. نتایج گویای برازش مدل مفهومی و تأیید تمامی فرضیه ها است؛ به نحوی که همه اثرات مستقیم در مدل ارائه شده و همچنین اثر غیرمستقیم جو مسموم سازمانی بر تسهیم دانش از طریق میانجی گری حمایت سازمانی ادراک شده مورد تأیید قرار گرفت. نتایج پژوهش بیان می دارد که حمایت سازمانی ادراک شده می تواند اثر منفی جو مسموم سازمانی را بر تسهیم دانش کارکنان مؤسسات آموزشی کاهش دهد؛ بنابراین لازم است جو مؤسسات آموزشی فاقد مسمویت باشد تا نیت سازمان در ارائه حمایت ها بر کارکنان آشکار شود و بدین ترتیب آن ها تسهیم دانش را مغایر با منافع خود تلقی نکنند.
Improving the State system of strategic planning of national security in the context of informatization of society(مقاله علمی وزارت علوم)
حوزههای تخصصی:
The inefficiency of the national security system is one of the biggest threats to Ukraine's national security. The strategic planning in the field of security and defense has designed to identify the means, including the future structure of forces, that would allow the institutions of the defense and security sector to effectively deal with potential future threats. The purpose of this study is development of theoretical and practical measures to increase the effectiveness of strategic management of national security processes on the basis of goal setting, forecasting and planning in the context of informatization of society. The relevance of this study is due to the needlegal regulation and improvement of the state system of strategic planning of national security of Ukraine. To achieve the goal of the study was used special scientific methods of legal knowledge. The results of the analysis showedwhat in the basis ensuring national security must rely on the principle of systematization, which means that the security and defense sector of Ukraine is considered as a single object of forecasting and planning. This study substantiates the main directions systemic reform of the security and defense sector, which has carried out in Ukraine to ensure the protection of the constitutional order, sovereignty, territorial integrity of the state in the face of armed aggression. The priorities should be implemented through key tasks, such as the establishment of a comprehensive strategic analysis of military threats to Ukraine's national security, coordination of intelligence activities, development of joint intelligence capabilities of the defense forces in order to obtain complete and reliable warning information for timely decision-making guaranteeing the military security of the state.
The Legal Mechanisms for Information Security in the context of Digitalization(مقاله علمی وزارت علوم)
حوزههای تخصصی:
As a result of the introduction of digital technologies in all spheres of society, various latest technologically conditioned risks and threats have become various. It requires the formation and implementation of a legal mechanism for further development and operation of the system ensuring information security, taking into account the effects of digitalization and transformation of society. The purpose of this study is development of scientifically substantiated proposals and recommendations for implementation legal mechanisms for information security in the context of digitalization. The relevance of this study is due to the needlegal regulation of relations in the information sphere, formation of a system of protection and counteraction to cybercrime. To achieve the goal of the study, methodological principles and approaches of legal science were used. The results of the analysis showed that the most significant mutual influence is demonstrated by a group of indicators of the state's institutional capacity and a group of indicators of the digital capacity of the national economy and cybersecurity. This study substantiates the main directions of accelerating the optimization of the institutional system of cybersecurity in Ukraine, which provides for two key areas: legal and organizational. The legal mechanisms include further improvement and harmonization of the regulatory framework, the formation of relevant legal norms, state policy in the field of information security. The organizational measures are aimed at improving the efficiency of responsible institutional structures - the subjects of cybersecurity - by increasing their capabilities, eliminating duplication in the exercise of their powers, taking into account the best practices of international and European experience. The core of the integrated information security system is the National Cyber Security Coordination Center.
The Impact of COVID-19 Crisis upon the Effectiveness of E-learning in Higher Education Institution(مقاله علمی وزارت علوم)
حوزههای تخصصی:
The infestation of the world pandemic has significantly changed the landscape of teaching and learning experience in Malaysia. Particularly for the institution under study, E-learning, previously used as the support medium to face-to-face classroom teaching, has become the primary medium of teaching and learning amid Covid-19. E-learning platform has replaced the face-to-face classes. Even though it is only a temporary approach, less is known in terms of its effectiveness. The present paper intends to examine the factors contributing to E-learning's effectiveness in a Higher Education Institution in Malaysia amid the COVID-19 crisis. The Technology Acceptance Model underpinned the conceptual framework. This study investigated the relationship between the independent variables (perceived usefulness, perceived ease of use, and self-motivation) and E-learning effectiveness. The data were collected through an online self-administrated questionnaire using Google form and received a total of 354 respondents. The data were analyzed using SPSS and Smart PLS. The findings revealed that perceived usefulness, perceived ease of use, and self-motivation positively influenced E-learning's effectiveness. This paper concluded that regardless of whether as the support medium or the primary medium in the teaching and learning process, the determinant to E-Learning effectiveness is still perceived the same. This study also supports the TAM proposition while incorporate self-motivation in measuring learning effectiveness.
Digitalization of Agribusiness in the Development of Foreign Economic Relations of the Region(مقاله علمی وزارت علوم)
منبع:
Journal of Information Technology Management , Volume ۱۳, Special Issue: Advanced Innovation Topics in Business and Management, ۲۰۲۱
123 - 141
حوزههای تخصصی:
The article is devoted to the research process of digitalization of vegetable development management as an important component of food security of the Black Sea region. Vegetables are necessary for the normal functioning of the human body, provide it with the necessary vitamins and trace elements. one of the conditions of good health. The annual volume of vegetables in food kits for the main social and demographic groups of the population of Ukraine is calculated. The dynamics of vegetable production of vegetable crops in the Black Sea region of Ukraine is studied. In addition, information and communication (digital) technologies in the agar sector are considered. It is proved that the digitization of agribusiness significantly saves the amount of materials and other resources, and execution time and production are optimized. Due to the systematization and grouping of data, the costs of document circulation are reduced, the process of accumulation and use of information is stimulated, the production and economic indicators of agricultural enterprises are improved, which will help increase their competitiveness in the long run.
Formation the Project Maturity of Public Administration in implementation of Digital Transformation Projects(مقاله علمی وزارت علوم)
منبع:
Journal of Information Technology Management , Volume ۱۳, Special Issue: Advanced Innovation Topics in Business and Management, ۲۰۲۱
163 - 187
حوزههای تخصصی:
The purpose of this study is to substantiate the basic principles and prerequisites for the formation of project maturity of public administration for the successful implementation of digital governance projects. The relevance of this study is due to the need to implement the task of digital transformation of Ukraine by solving the problem of modernization of public administration on the basis of constant increase of project maturity of the organizations.The study proved the existence of a direct dependence of prospects for the implementation of digital transformation projects on the level of project maturity of public management. A variant of the project maturity model adapted to the local self-government body is being developed. The model assumes three levels of maturity of local governments. It has established that the majority of the created united territorial communities of Ukraine were characterized by the first two levels of maturity. The implementation of the maturity model makes it possible to assess the current state of the system, choose adequate tools for staff training, create conditions for continuous improvement and realization of the potential of the local community for the implementation of digital transformation projects.
طراحی مدل ارزیابی عملکرد شرکت ارتباطات سیار ایران با رویکرد سازمان دانش محور(مقاله علمی وزارت علوم)
منبع:
مدیریت راهبردی دانش سازمانی سال چهارم بهار ۱۴۰۰ شماره ۱۲
155 - 195
حوزههای تخصصی:
شرکت ارتباطات سیار ایران (همراه اوّل) به عنوان یک سازمان دانش محور با توجّه به ماهیت صنعت خدمات ارتباطی در کشور، پویایی و تغییر بالایی را در حوزه فعالیت خود پیش روی دارد. برای کنترل و انطباق با این تغییرات، این شرکت نیازمند مدلی نوین برای ارزیابی عملکرد خود است. بر همین اساس مقاله حاضر، پژوهشی کیفی در خصوص ارزیابی عملکرد شرکت ارتباطات سیار ایران (همراه اوّل) با رویکرد سازمان دانش محور و با عبور از مدل های ارزیابی عملکرد موجود با نگاه سنتی و کوتاه مدت است تا چالش های این حوزه را با مدلی جامع و مانع، شفاف و ساده پوشش دهد، به گونه ای که واقع گرایانه باشد و با حوزه های حساس و کلیدی عملکرد این شرکت به عنوان یک سازمان دانش محور نیز مرتبط باشد. در ابتدا به منظور جمع آوری داده ها، پس از بررسی ادبیات و پیشینه تحقیقات انجام شده، چارچوب و پروتکل مصاحبه نیمه ساختاریافته تهیه و تدوین و در ادامه از میان کارشناسان و خبرگان علمی و اجرایی فعال در حوزه خدمات ارتباطی با روش نمونه گیری هدفمند "گلوله برفی"، مشارکت کنندگان انتخاب شدند. تحلیل داده ها با روش تحلیل تم استقرایی شش مرحله ای کلارک و براون کدگذاری گردید. تحلیل داده ها در فرایند کدگذاری با کمک نرم افزار MAXQDA منجر به ظهور 104 کد باز، 27 تم فرعی و 7 تم اصلی شامل مؤلفه های مدیریت و نیروی انسانی، سازمانی، فرایندی، بازار و فضای رقابتی، فنی و اجرایی فضای کسب و کار، بسترسازی مبتنی بر دانش و نتایج در سه حوزه سازمانی، مشتریان و رگولاتوری شد. با توجه به ویژگی های خاص سازمان های فعال در صنعت خدمات ارتباطی و تأکید آن ها بر دانش و فناوری اطلاعات به منظور رسیدن به کمال سازمانی، نتایج این پژوهش می تواند توسط سایر شرکت های دانش محور نیز مورد استفاده قرار گیرد.
The Influence of Knowledge Generation on Organizational Creativity in CASNOS Foundation(مقاله علمی وزارت علوم)
حوزههای تخصصی:
This study aims to test the relationship between knowledge generation and organizational creativity. The second method was surveyed (analytical) using exploratory research through the survey as a data collection tool. The validity coefficient was measured as a reasonable degree of stability was obtained for a sample of (46) individuals. The data was analyzed using statistical package (SPSS V25). Descriptive Statistic Among the findings is that CASNOS has a medium level of the knowledge generation process, and there is a statistically significant effect of knowledge generation on the organizational innovation of CASNOS (El-Oued), according to the dimensions adopted in the study model.
Social Media as a New Communication Platform in the Context of the Information Eco Strategy(مقاله علمی وزارت علوم)
منبع:
Journal of Information Technology Management , Volume ۱۳, Special Issue: Role of ICT in Advancing Business and Management, ۲۰۲۱
128 - 142
حوزههای تخصصی:
The article is devoted to a comprehensive analysis of peculiarities of the content types, which can be placed in social media and Ukrainian Internet media, its differences, types of manipulation, and methods of prevention, perception, and distribution of unreliable information, determination of difference between fact and judgment. The article also analyzes the statistics of social media usage in Ukraine and around the world, using Facebook as an example. Various kinds and types of media existing on the Internet and traditional, conducted a survey of the most popular content using the Starch method, it was possible to identify how a person perceives one content that is placed on different media. The relationship between content type and media type is established. The phenomenon of information restriction, arising as a result of modern algorithms embedded in the Internet companies and social media, their positive and negative aspects and why, therefore, we are deprived of a choice among a wide range of other topics, and learning some other points of view was considered. Examining the origin and meaning of the "Information Bubble" term, the authors propose to use a different term, "Membrane of Relevance", which, in their opinion, is more relevant to the essence of the said concept. The authors propose to use a taxonomy method to determine the impact of content on a particular type of media, which will greatly simplify the content analysis process.
روش شناسی برنامه ریزی راهبردی فناوری اطلاعات در صنعت توزیع برق با تمرکز بر کتابخانه زیرساخت فناوری اطلاعات(مقاله علمی وزارت علوم)
حوزههای تخصصی:
برنامه ریزی راهبردی نقش کلیدی در موفقیت آتی سازمانها دارد. فناوری اطلاعات به عنوان یک حوزه نوظهور در سازمانهای ایرانی، برای موفقیت نیازمند برنامه ریزی راهبردی است. در این تحقیق پس از مرور نظام مند روشهای تدوین برنامه راهبردی فناوری اطلاعات و ارائه سیر تکوین این روشها، یک روش بومی برای تدوین برنامه راهبردی فناوری اطلاعات شرکتهای توزیع برق ارائه شده است. این روش یک فراترکیب کمی-کیفی است. طی این تحقیق که شامل 5 فاز است، شناخت سازمان براساس معماری اطلاعاتی فرآیندها انجام می شود و سپس براساس چشم انداز همسویی کسب و کار و فناوری اطلاعات، دستیابی به وضعیت بهینه در به روشهای کتابخانه زیرساخت فناوری اطلاعات به عنوان یکی از روشهای همسویی کسب و کار و فناوری اطلاعات با رویکرد حاکمیت فناوری اطلاعات، دنبال می شود. با تطبیق فرآیندهای کسب و کار توزیع برق و فرآیندهای کتابخانه زیرساخت فناوری اطلاعات، وضعیت موجود و وضعیت مطلوب در هر فرآیند براساس نظرات خبرگان کسب و کار تعیین شد. بر این اساس فرآیندهای مدیریت تداوم خدمت، مدیریت کاتالوگ خدمت و مدیریت سبد خدمت دارای بیشترین فاصله از وضعیت مطلوب بودند و برای سایر فرآیندها نیز همین تحلیل فاصله انجام شد. براساس تحلیل فاصله، راهبردهای متناسب به ازای هر یک از فرآیندهای کتابخانه زیرساخت فناوری اطلاعات براساس به روشها ارائه شد.