389,907 research outputs found
The necessities for building a model to evaluate Business Intelligence projects- Literature Review
In recent years Business Intelligence (BI) systems have consistently been
rated as one of the highest priorities of Information Systems (IS) and business
leaders. BI allows firms to apply information for supporting their processes
and decisions by combining its capabilities in both of organizational and
technical issues. Many of companies are being spent a significant portion of
its IT budgets on business intelligence and related technology. Evaluation of
BI readiness is vital because it serves two important goals. First, it shows
gaps areas where company is not ready to proceed with its BI efforts. By
identifying BI readiness gaps, we can avoid wasting time and resources. Second,
the evaluation guides us what we need to close the gaps and implement BI with a
high probability of success. This paper proposes to present an overview of BI
and necessities for evaluation of readiness. Key words: Business intelligence,
Evaluation, Success, ReadinessComment: International Journal of Computer Science & Engineering Survey
(IJCSES) Vol.3, No.2, April 201
Organizational Excellence in Palestinian Universities of Gaza Strip
The research aims to identify the organizational excellence in Palestinian universities of Gaza Strip, from the perspective of senior management. The questionnaires were distributed the top senior management in the Palestinian universities, and the study population was (344) employees in senior management in Palestinian universities. A stratified random sample were selected from of employees in the Palestinian universities consist of (182) employees at return rate of (69.2%). SPSS program for analyzing and processing the data was used. The study reached the following results: the senior management agrees largely on the importance of the axis of "Leadership Excellence" and "Excellence service sectors". The senior management agrees moderately about the importance of the axis of the “Knowledge excellence". The study showed that there is a weakness in the employment of scientific research to serve the community, there is weakness in the follow-up of the universities management for the performance of their graduates in the institutions in which they work. Senior management agrees on the importance of the "Organizational Excellence" moderately. The recommendations of study includes: the need to develop principles and fair criteria for the selection of the best candidates for the university and university leaders based on specialization, competence, experience, skills, integrity and not on the basis of favoritism
KM Maturity Factors Affecting High Performance in Universities
This paper aims to measure Knowledge Management Maturity (KMM) in the universities to determine the impact of knowledge
management on high performance. This study was applied on Al-Quds Open University in Gaza strip, Palestine. Asian
productivity organization model was applied to measure KMM. Second dimension which assess high performance was
developed by the authors. The controlled sample was (306). Several statistical tools were used for data analysis and hypotheses
testing, including reliability Correlation using Cronbach’s alpha, “ANOVA”, Simple Linear Regression and Step Wise
Regression.The overall findings of the current study suggest that KMM is suitable for measuring high performance. KMM
assessment shows that maturity level is in level three. Findings also support the main hypothesis and it is sub- hypotheses. The
most important factors effecting high performance are: Processes, KM leadership, People, KM Outcomes and Learning and
Innovation. Furthermore the current study is unique by the virtue of its nature, scope and way of implied investigation, as it is
the first comparative study in the universities of Palestine explores the status of KMM using the Asian productivity Model
Special Libraries, April 1962
Volume 53, Issue 4https://scholarworks.sjsu.edu/sla_sl_1962/1003/thumbnail.jp
Eco‐Holonic 4.0 Circular Business Model to Conceptualize Sustainable Value Chain Towards Digital Transition
The purpose of this paper is to conceptualize a circular business model based on an Eco-Holonic Architecture, through the integration of circular economy and holonic principles. A conceptual model is developed to manage the complexity of integrating circular economy principles, digital transformation, and tools and frameworks for sustainability into business models. The proposed architecture is multilevel and multiscale in order to achieve the instantiation of the sustainable value chain in any territory. The architecture promotes the incorporation of circular economy and holonic principles into new circular business models. This integrated perspective of business model can support the design and upgrade of the manufacturing companies in their respective industrial sectors. The conceptual model proposed is based on activity theory that considers the interactions between technical and social systems and allows the mitigation of the metabolic rift that exists between natural and social metabolism. This study contributes to the existing literature on circular economy, circular business models and activity theory by considering holonic paradigm concerns, which have not been explored yet. This research also offers a unique holonic architecture of circular business model by considering different levels, relationships, dynamism and contextualization (territory) aspects
A Survey on Economic-driven Evaluations of Information Technology
The economic-driven evaluation of information technology (IT) has become an important instrument in the management of IT projects. Numerous approaches have been developed to quantify the costs of an IT investment and its assumed profit, to evaluate its impact on business process performance, and to analyze the role of IT regarding the achievement of enterprise objectives. This paper discusses approaches for evaluating IT from an economic-driven perspective. Our comparison is based on a framework distinguishing between classification criteria and evaluation criteria. The former allow for the categorization of evaluation approaches based on their similarities and differences. The latter, by contrast, represent attributes that allow to evaluate the discussed approaches. Finally, we give an example of a typical economic-driven IT evaluation
Providing value to a business using a lightweight design system to support knowledge reuse by designers
This paper describes an alternative approach to knowledge based systems in engineering than traditional geometry or explicit knowledge focused systems. Past systems have supported product optimisation rather than creative solutions and provide little benefit to businesses for bespoke and low volume products or products which do not benefit from optimisation. The approach here addresses this by supporting the creativity of designers through codified tacit knowledge and encouraging knowledge reuse for bespoke product development, in particular for small to medium sized enterprises. The implementation and evaluation of the approach is described within a company producing bespoke fixtures and tooling in shorter than average lead times. The active support of knowledge management in the company is intended to add value to the business by further reducing the lead times of the designs and creating a positive impact to business processes. The evaluation demonstrates a viable alternative framework to the traditional management of knowledge in engineering, which could be implemented by other small to medium enterprises
Study on thermal model for calculating transformer hot Spot temperature
A power transformer is a static piece of apparatus with two or more windings which, by
electromagnetic induction, transforms a system of alternating voltage and current into another
system of voltage and current usually of different values and at same frequency for the purpose
of transmitting electrical power.
The hot spot temperature depends on instantaneous load and ambient temperature,
winding design and also cooling model. There are two possible methods for hotspot temperature
determination. The first method is to measure the hot spot temperature using a fiber optic, and
other is to calculation the hotspot temperature using transformer thermal models. It was noticed
that the hot spot temperature rise over top oil temperature due to load changes is a function
depending on time as well as the transformer loading (overshoot time dependent function). It has
also been noticed that the top oil temperature time constant is shorter than the time constant
suggested by the present IEC loading guide, especially in cases where the oil is guided through
the windings in a zigzag pattern for the ONAN and ONAF cooling modes. This results in winding
hottest spot temperatures higher than those predicted by the loading guides during transient states
after the load current increases, before the corresponding steady states have been reached.
This thesis presents more accurate temperature calculation methods taking into account
the findings mentioned above. The models are based on heat transfer theory, application of the
lumped capacitance method, the thermal-electrical analogy and definition of nonlinear thermal
resistances at different locations within a power transformer. The methods presented in this
thesis take into account all oil physical parameters change and loss variation with temperature.
In addition, the proposed equations are used to estimate the equivalent thermal capacitances of
the transformer oil for different transformer designs and winding-oil circulations. The models are
validated using experimental results, which have been obtained from the normal heat run test
performed by the transformer manufacturer at varying load current on a 250-MVA-ONAFcooled
unit, a 400-MVA-ONAF-cooled
unit and a 2500-KVA-ONAN-cooled
unit. The results
are also compared with the IEC 60076-7:2005 loading guide method.
Keywords: power transformers, hot spot temperature, top oil temperature, non-linear therma
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