44,391 research outputs found

    Adaptive development and maintenance of user-centric software systems

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    A software system cannot be developed without considering the various facets of its environment. Stakeholders – including the users that play a central role – have their needs, expectations, and perceptions of a system. Organisational and technical aspects of the environment are constantly changing. The ability to adapt a software system and its requirements to its environment throughout its full lifecycle is of paramount importance in a constantly changing environment. The continuous involvement of users is as important as the constant evaluation of the system and the observation of evolving environments. We present a methodology for adaptive software systems development and maintenance. We draw upon a diverse range of accepted methods including participatory design, software architecture, and evolutionary design. Our focus is on user-centred software systems

    Markov Decision Processes with Applications in Wireless Sensor Networks: A Survey

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    Wireless sensor networks (WSNs) consist of autonomous and resource-limited devices. The devices cooperate to monitor one or more physical phenomena within an area of interest. WSNs operate as stochastic systems because of randomness in the monitored environments. For long service time and low maintenance cost, WSNs require adaptive and robust methods to address data exchange, topology formulation, resource and power optimization, sensing coverage and object detection, and security challenges. In these problems, sensor nodes are to make optimized decisions from a set of accessible strategies to achieve design goals. This survey reviews numerous applications of the Markov decision process (MDP) framework, a powerful decision-making tool to develop adaptive algorithms and protocols for WSNs. Furthermore, various solution methods are discussed and compared to serve as a guide for using MDPs in WSNs

    Managing Climatic Risks to Combat Land Degradation and Enhance Food security: Key Information Needs

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    This paper discusses the key information needs to reduce the negative impacts of weather variability and climate change on land degradation and food security, and identifies the opportunities and barriers between the information and services needed. It suggests that vulnerability assessments based on a livelihood concept that includes climate information and key socio-economic variables can overcome the narrow focus of common one-dimensional vulnerability studies. Both current and future climatic risks can be managed better if there is appropriate policy and institutional support together with technological interventions to address the complexities of multiple risks that agriculture has to face. This would require effective partnerships among agencies dealing with meteorological and hydrological services, agricultural research, land degradation and food security issues. In addition a state-of-the-art infrastructure to measure, record, store and disseminate data on weather variables, and access to weather and seasonal climate forecasts at desired spatial and temporal scales would be needed

    Towards an Expert Network in Open Standards and Open Source Software: Research, Expertise and Synergy for Open and Libres Standards and Software (RESOLL) - Version 2.0

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    CIRANO and its partners are proposing the creation of an Expert Network in Open Standards and Open Source Software (Research, Expertise and Synergy for Open and Libres Standards and Software-RESOLL), which would be a partnership between information technology research centres, government and private user organizations, and businesses working in the field. The network will conduct studies and pilot projects that integrate computer solutions based on open standards and open source software, mainly in e-government fields such as health, education, and scientific research, as well as municipal and quasi-public services and business processes for SMEs. The knowledge, expertise and tools thus developed will be disseminated in a number of ways in order to Quebec and Canadian expertise in the field. RESOLL will also have economic and strategic benefits in that it will put the new economic model to the test in terms of open standards and open source software as well as the reuse of software components by organizations. Background The development of on-line government services and e-business is a priority for governments and businesses of all sizes. It requires considerable spending and significant strategic and organizational changes. Of the many information technology solutions available, the use of open standards and open source software is often brought up by those in the know. Although the Internet and many world-renowned software programs were developed largely from open standards and open source software, there is still a need to study, and above all prove the advantages of this approach for public and quasi-public organizations as well as small to medium-sized businesses. It is essential to identify the needs of these organizations, document best practices, experiment with open source software solutions, evaluate the performance of the software and share the knowledge and know-how of Quebec and Canadian research centres and businesses. RESOLL Goals he main goal of the Expert Network on Open Standards and Open Source Software (RESOLL) is to give people an understanding of the benefits of open standards and open source software and suggest an intelligent and advantageous use of them for public and quasi-public organizations and SMEs. More specifically, the goals are as follows: Document and share government and industry policies, strategies, and practices with respect to the use and development of adaptive software and open source software, defining open standards, open source software, adaptive software, and proprietary software; Adapt these practices and share the different methods with partners and the IT management and development communities in government and business; Establish innovative prototypes and pilot projects in order to test and demonstrate the advantages and features of this approach; Develop the expertise of Quebec and Canadian organizations in the field and create synergy between them and their users; P ublish and share the findings of the work, contribute to the enrichment of a collective software asset base available to public and quasi-public organizations and SMEs while explaining the legal issues involved in the various types of licences and electronic services. Process ESOLL is a multilateral partnership founded on the excellence of partners in their respective field. The RESOLL process will be based on the needs of its partners and users. Once these needs have been identified, research will be conducted to identify available solutions, adapt them through an integration process and alpha test them. This would be followed by a pilot project as required by the organizations and businesses. The pilot project will be implemented and evaluated in order to learn from it and ensure that necessary adjustments are made. Solutions thus obtained will be implemented as electronic services either by the client organization’s IT department or by a business partner. It is up to each organization to select their service provider. RESOLL will encourage the transfer of developed tools and services to partners for complete autonomy. Each project will have its own budget, funded by client partners. RESOLL will use part of its operating budget to start projects and develop a start-up asset base for its activities. Expectations and Deliverables The expectations of RESOLL partners and the team can be expressed by the achievement of their goals. RESOLL’s actions will quickly lead to concrete results. The deliverables will be: Policy and position papers to help partners make clear and informed decisions; Needs analyses and suggested solutions; Software solutions based on open standards and open source software integrated into experimental electronic services; Pilot project experiments that combine strategies, plans, software solutions, project support, evaluation and recommendations; Studies and interpretation documents for different types of licences and software; Collaborative Web site for sharing documents and open source software developed in the context of RESOLL projects or available on the Internet, with comments and explanations; Information and knowledge sharing activities for RESOLL and its partners (conferences, workshops, training, etc.). Partners RESOLL is a multilateral partnership. The partners that have been asked to become involved are: CIRANO, CRIM, RISQ, the governments of Quebec and Canada, Industry Canada, university researchers, Canadian and Quebec software and information technology companies, and not-for-profit user organizations from the software and information technology fields. Budget ESOLL’s master infrastructure budget will make it possible to establish a small coordination team involving part-time resources seconded from their parent organizations. We plan to obtain general financing from government and the businesses involved. The individual projects will provide their own financing. Other Benefits RESOLL will contribute to Quebec’s and Canada’s world leadership by sharing the results of its work. It will contribute to the eventual creation of resources that will enable partner companies to commercialize services based on open source software.Open standard, free software, open software, FOSS, e-government, business process, small and medium enterprises,

    Intangible trust requirements - how to fill the requirements trust "gap"?

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    Previous research efforts have been expended in terms of the capture and subsequent instantiation of "soft" trust requirements that relate to HCI usability concerns or in relation to "hard" tangible security requirements that primarily relate to security a ssurance and security protocols. Little direct focus has been paid to managing intangible trust related requirements per se. This 'gap' is perhaps most evident in the public B2C (Business to Consumer) E- Systems we all use on a daily basis. Some speculative suggestions are made as to how to fill the 'gap'. Visual card sorting is suggested as a suitable evaluative tool; whilst deontic logic trust norms and UML extended notation are the suggested (methodologically invariant) means by which software development teams can perhaps more fully capture hence visualize intangible trust requirements

    BPM News - Folge 3

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    Die BPM-Kolumne des EMISA-Forums berichtet über aktuelle Themen, Projekte und Veranstaltungen aus dem BPM-Umfeld. Schwerpunkt der vorliegenden Kolumne bildet das Thema Standardisierung von Prozessbeschreibungssprachen und -notationen im Allgemeinen und BPEL4WS (Business Process Execution Language for Web Services) im Speziellen. Hierzu liefert Jan Mendling von der Wirtschaftsuniversität Wien in aktuelles Schlagwort. Des weiteren erhalten Leser eine Zusammenfassung zweier im ersten Halbjahr 2006 veranstalteten Workshops zu den Themen „Flexibilität prozessorientierter Informationssysteme“ und „Kollaborative Prozesse“ sowie einen BPM Veranstaltungskalender für die 2. Jahreshälfte 2006

    Predictive Analytics In Higher Education: Five Guiding Practices for Ethical Use

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    Without ethical practices, student data could be used to curtail academic success rather than help ensure it. For example, without a clear plan in place, an institution could use predictive analytics to justify using fewer resources to recruit low-income students because their chances of enrolling are less sure than for more affluent prospective students. In this report, New America lays out important questions to consider as administrators formulate how to use predictive analytics ethically

    Кибербезопасность в образовательных сетях

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    The paper discusses the possible impact of digital space on a human, as well as human-related directions in cyber-security analysis in the education: levels of cyber-security, social engineering role in cyber-security of education, “cognitive vaccination”. “A Human” is considered in general meaning, mainly as a learner. The analysis is provided on the basis of experience of hybrid war in Ukraine that have demonstrated the change of the target of military operations from military personnel and critical infrastructure to a human in general. Young people are the vulnerable group that can be the main goal of cognitive operations in long-term perspective, and they are the weakest link of the System.У статті обговорюється можливий вплив цифрового простору на людину, а також пов'язані з людиною напрямки кібербезпеки в освіті: рівні кібербезпеки, роль соціального інжинірингу в кібербезпеці освіти, «когнітивна вакцинація». «Людина» розглядається в загальному значенні, головним чином як та, що навчається. Аналіз надається на основі досвіду гібридної війни в Україні, яка продемонструвала зміну цілей військових операцій з військовослужбовців та критичної інфраструктури на людину загалом. Молодь - це вразлива група, яка може бути основною метою таких операцій в довгостроковій перспективі, і вони є найслабшою ланкою системи.В документе обсуждается возможное влияние цифрового пространства на человека, а также связанные с ним направления в анализе кибербезопасности в образовании: уровни кибербезопасности, роль социальной инженерии в кибербезопасности образования, «когнитивная вакцинация». «Человек» рассматривается в общем смысле, в основном как ученик. Анализ представлен на основе опыта гибридной войны в Украине, которая продемонстрировала изменение цели военных действий с военного персонала и критической инфраструктуры на человека в целом. Молодые люди являются уязвимой группой, которая может быть главной целью когнитивных операций в долгосрочной перспективе, и они являются самым слабым звеном Систем
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