352 research outputs found
Key Challenges in Agile Requirements Engineering
Agile Software Development (ASD) is becoming more popular in all fields of
industry. For an agile transformation, organizations need to continuously improve their
established approaches to Requirements Engineering (RE) as well as their approaches to
software development. This is accompanied by some chalâlenges in terms of agile RE. The
main objective of this paper is to identify the most important challenges in agile RE industry
has to face today. Therefore, we conducted an iterative expert judgement process with 26
experts in the field of ASD, comprising three complementary rounds.
In sum, we identified 20 challenges in three rounds. Six of these challenges are defined as
key challenges. Based on the results, we provide options for dealing with those key
challenges by means of agile techniques and tools. The results show that the identified
challenges are often not limited to ASD, but they rather refer to software development in
general. Therefore, we can conclude that organâizations still struggle with agile transition and
understanding agile values, in particular, in terms of stakeholder and user involvement.Ministerio de EconomĂa y Competitividad TIN2013-46928-C3-3-RMinisterio de EconomĂa y Competitividad TIN2016-76956-C3-2-RMinisterio de EconomĂa y Competitividad TIN2015-71938-RED
The evaluation of (social-)psychological comfort in clothing, a possible approach
This paper presents the first results of a PhD research on psychological comfort of
clothing. In order to understand and conceptualize the psychological aspects of clothing
comfort, a variation of the Delphi Method was used to seek opinions from experts. This
method was chosen because of its consensus-building features. The results were obtained from
a qualitative text analysis, conducted over the expertsâ responses to the first round of questions.
The analytic process shed some light on the formation of the psychological comfort concept as
well as the potential attributes to be evaluated when assessing this comfort dimension.This work is supported by FEDER funds through the Competitivity Factors Operational Programme -
COMPETE and by national funds through FCT â Foundation for Science and Technology within the
scope of the project POCI-01-0145-FEDER-007136.
The first author would also like to gratefully acknowledge the support from the Araucaria Foundation
of ParanĂĄ State and the Federal University of Technology, specially, the Fashion Design Department
and the Office of Research and Graduate Studies.info:eu-repo/semantics/publishedVersio
Delphi-Consensus Weights for Ischemic and Bleeding Events to Be Included in a Composite Outcome for RCTs in Thrombosis Prevention
To weight ischemic and bleeding events according to their severity to be used in a composite outcome in RCTs in the field of thrombosis prevention.Using a Delphi consensus method, a panel of anaesthesiology and cardiology experts rated the severity of thrombotic and bleeding clinical events. The ratings were expressed on a 10-point scale. The median and quartiles of the ratings of each item were returned to the experts. Then, the panel members evaluated the events a second time with knowledge of the group responses from the first round. Cronbach's a was used as a measure of homogeneity for the ratings. The final rating for each event corresponded to the median rating obtained at the last Delphi round.Of 70 experts invited, 32 (46%) accepted to participate. Consensus was reached at the second round as indicated by Cronbach's a value (0.99 (95% CI 0.98-1.00)) so the Delphi was stopped. Severity ranged from under-popliteal venous thrombosis (medianâ=â3, Q1â=â2; Q3â=â3) to ischemic stroke or intracerebral hemorrhage with severe disability at 7 days and massive pulmonary embolism (medianâ=â9, Q1â=â9; Q3â=â9). Ratings did not differ according to the medical specialty of experts.These ratings could be used to weight ischemic and bleeding events of various severity comprising a composite outcome in the field of thrombosis prevention
Developing standards for reporting implementation studies of complex interventions (StaRI): a systematic review and e-Delphi
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited
Model construction of medical endoscope service evaluation system-based on the analysis of Delphi method
Background:
Medical endoscope is widely used in clinical practice for the purpose of diagnosis and treatment, occupying around 5% of the medical device market. Evaluating the true service level of medical endoscope is essential and necessary to improve overall performance of medical diagnosis and treatment, and to maintain competitiveness of endoscope manufacturers, however, such a tool is not available in the market. This study develops an Evaluation Index System (EIS) to assess service level of medical endoscope, and to provide suggestions for improving the service level through the Delphi method.
Methods:
Firstly, the possible factors influencing the service level were identified from literature review. In parallel, the Delphi expert method questionnaire was designed and 25 experts were invited to conduct three rounds of questionnaire, to evaluate and rate the possible factors. Finally, we determined the weights associated with the factors, using the analytic hierarchy process (AHP) and percentage method, and developed the service level EIS.
Results:
The EIS consists of 3 first-level indicators, 24âs-level indicators and 68 third-level indicators. According to the weights computed using AHP, first-level indicators are ranked as post-sale (0.62), in-sale (0.25) and pre-sale (0.13). Through case verification, the medical endoscope brand Olympus had a total score of 4.17, Shanghai Aohua had a total score of 3.71, and Shanghai Chengyun had a total score of 3.28, which matches its market popularity and ranking in terms of market share. The results obtained from the EIS are consistent with the reality.
Conclusions:
The EIS established in this study is comprehensive, reliable and reasonable with strong practicality. The EIS can act as a tool for the endoscope users to evaluate potential products and make informed choices. It also provides a measurable basis for endoscope manufacturers and service providers to improve service quality
Towards a framework for work package allocation for GSD
Proceeding of: Proceeding of: OTM 2011 Workshops: Confederated International Workshops and Posters: EI2N+NSF ICE, ICSP+INBAST, ISDE, ORM, OTMA, SWWS+MONET+SeDeS, and VADER 2011, Hersonissos, Crete, Greece, October 17-21, 2011Global software development is an inexorable trend in the software industry. The impact of the trend in conventional software development can be found in many of its aspects. One of them is task or work package allocation. Task allocation was traditionally driven by resource competency and availability but GSD introduces new complexities to this process including time-zones differences, costs and cultural differences. In this work a report on the construction of a framework for work-package allocation within GSD projects is presented. This framework lies on three main pillars: individual and organizational competency, organizational customization and sound assessment methods.This work is supported by the Spanish Centro para el Desarrollo
TecnolĂłgico Industrial (CDTI) under the Eureka Project E! 6244 PROPS-Tour and
the national cooperation project SEM-IDi (IDI-20091150)
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Threats to the validity of the Collegiate Learning Assessment (CLA+) as a measure of critical thinking skills and implications for Learning Gain
The University of Reading Learning Gain project is a three-year longitudinal project to test and evaluate a range of available methodologies and to draw conclusions on what might be the right combination of instruments for the measurement of Learning Gain in higher education. This paper analyses the validity of a measure of critical thinking skills, the Collegiate Learning Assessment (CLA+) and the implications of using this standardised test as a proxy for Learning Gain. The paper reviews five inferences regarding the interpretations and use of test scores: construct representation, scoring, generalisation, extrapolation and decision-making. Each section reviews some of the available evidence in support of the claims the CLA+ makes and the threats to their validity. The possible impact of these issues on Learning Gain in the UK is considered
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