Software in Amateur “Packet Radio” Communications and Networking

2014 ◽  
pp. 122-188 ◽  
Author(s):  
Miroslav Škorić
Keyword(s):  
Wireless Communications ◽  
Operating Systems ◽  
End Users ◽  
Free Software ◽  
End User ◽  
Radio Communications ◽  
Packet Radio ◽  
Proprietary Software ◽  
Software Products ◽  
Amateur Radio

In modern (amateur radio) wireless communications, we use computers. Depending on particular situations, such as employers’ and personal preferences, users can adopt more or less proprietary operating systems and related end-user programs. In emerging and developing societies, the usage of proprietary software can be costly. Not only that, contrary to so-called “open” software, the “closed” software is not able to motivate its users to upgrade those programs regularly, not only because of high prices and restricted licensing policies, but also because of its nature, which is the “closedness” of program codes, where the end-users are not allowed to change programmed software, and so assist companies in improving features of their software products. Therefore, the authors help prospective newcomers in the amateur wireless communications to become familiar with the “open” software and, as well, to encourage them in implementing many “free” software solutions at home or work.

scholarly journals Software Libre... Una alternativa de solución en la Administración Pública Municipal [Free Software... An alternative solution Municipal Public Administration]

2014 ◽  
Author(s):  
Luis Fernando CETARES RUIZ
Keyword(s):  
Latin America ◽  
Public Administration ◽  
Developed Countries ◽  
End Users ◽  
Free Software ◽  
Alternative Solution ◽  
Proprietary Software ◽  
Technology Investment

Resumen   A pesar del movimiento que inició aproximadamente en 1980, con la motivación generada por el inconformismo en las restricciones del software privativo, y aunque los beneficios con el SL (Software Libre) son tanto económicos como sociales, es desconocido por los usuarios finales, aun cuando lo utilizan a diario. En este documento se describen su filosofía y los beneficios que ha generado en el ámbito mundial, no sólo en países desarrollados como España y Francia, sino en vía de desarrollo, especialmente en Latinoamérica; también las grandes oportunidades que ofrece como motor de crecimiento de la economía y de igual manera la iniciativa que le apuesta a su implementación para beneficio de la comunidad del municipio de Flandes, que permite minimizar costos en inversión tecnológica sin alterar significativamente el desempeño de los funcionarios. Palabras Claves: Apache, Aplicativos, Comunidad, Distribuciones, Internet, Linux, Servidores, Software Libre   Abstract   Despite the movement that began around 1980, with the motivation generated by the inconsistency in the constraints of proprietary software and although benefits with SL (Free Software) are both economic and social, is unknown to end users, even if use it daily. Philosophy and the benefits it has generated worldwide are described herein, not only in developed countries such as Spain and France, but in the process of development, especially in Latin America, also great opportunities as an engine of growth economy and likewise the initiative to bet on its implementation for the benefit of the community in the municipality of Flanders, which minimizes costs in technology investment without significantly altering the performance of officials. Keywords: Apache, Aplicativos, Community, Distributions, Internet, Linux, Servers, Free Software

scholarly journals Performance analysis of selected hypervisors (Virtual Machine Monitors - VMMs)

2016 ◽  
Vol 62 (3) ◽  
pp. 231-236 ◽  
Author(s):  
Waldemar Graniszewski ◽  
Adam Arciszewski
Keyword(s):  
Performance Analysis ◽  
Open Source ◽  
Virtual Machine ◽  
Operating Systems ◽  
Virtual Machine Monitor ◽  
It Projects ◽  
Network Infrastructure ◽  
Proprietary Software ◽  
Software Products ◽  
Better Than

Abstract Virtualization of operating systems and network infrastructure plays an important role in current IT projects. With the number of services running on different hardware resources it is easy to provide availability, security and efficiency using virtualizers. All virtualization vendors claim that their hypervisor (virtual machine monitor - VMM) is better than their competitors. In this paper we evaluate performance of different solutions: proprietary software products (Hyper-V, ESXi, OVM, VirtualBox), and open source (Xen). We are using standard benchmark tools to compare efficiency of main hardware components, i.e. CPU (nbench), NIC (netperf), storage (Filebench), memory (ramspeed). Results of each tests are presented.

scholarly journals 4G over 3G Mobile Broadband Speed Improvements on Smartphones from End Users Perspective

2013 ◽  
Vol 9 (1) ◽  
pp. 922-925
Author(s):  
Mubashir Ali
Keyword(s):  
Wireless Communications ◽  
Wireless Communication ◽  
Mobile Phones ◽  
Mobile Networks ◽  
End Users ◽  
Smart Phones ◽  
End User ◽  
Mobile Broadband ◽  
Long Time ◽  
Better Than

Mobile & wireless communication has been one of the hottest thing and developing extremely fast in present times, thanks to the advances of technology in all the fields of mobile and wireless communications. It has not been a long time that 4th generation of mobile networks i.e. 4G, is introduced. Since then, there has been hype all around regarding the numerous advantages of 4G and that, it is better than 3G. This paper will discuss the uses of mobile broadband on smartphones; compare the data speeds of 3G and 4G and how the speed improvement of 4G over 3G makes not much of a difference to an end user using internet on smart phones / mobile phones.

scholarly journals End-User Software Development: Effectiveness of a Software Engineering-Centric Instructional Strategy

10.28945/4580 ◽  
2020 ◽  
Vol 19 ◽  
pp. 367-393 ◽  
Author(s):  
Ilenia Fronza ◽  
Luis Corral ◽  
Claus Pahl
Keyword(s):  
Software Engineering ◽  
Software Development ◽  
Instructional Strategies ◽  
Case Studies ◽  
Instructional Strategy ◽  
End Users ◽  
Assessment Framework ◽  
End User ◽  
Software Products ◽  
Software Product

Aim/Purpose: This work aims to introduce and evaluate an instructional strategy that aids end-users with developing their software products during intensive project-based events. Background: End-users produce software in the labor market, and one of the challenges for End-User Software Engineering (EUSE) is the need to create functional software products without a formal education in software development. Methodology: In this work, we present an instructional strategy to expose end-users to Agile-based Software Engineering (SE) practices and enhance their ability to developing high-quality software. Moreover, we introduce a SE approach for the collection of metrics to assess the effectiveness of the instructional strategy. We conducted two case studies to validate the effectiveness of our strategy; the comprehensive analysis of the outcome products evaluates the strategy and demonstrates how to interpret the collected metrics. Contribution: This work contributes to the research and practitioner body of knowledge by leveraging SE centric concepts to design an instructional strategy to lay the foundations of SE competencies in inexperienced developers. This work presents an instructional strategy to develop SE competencies through an intensive and time-bound structure that may be replicated. Moreover, the present work introduces a framework to evaluate these competencies from a product-centric approach, specialized for non-professional individuals. Finally, the framework contributes to understanding how to assess software quality when the software product is written in non-conventional, introductory programming languages. Findings: The results show the effectiveness of our instructional strategy: teams were successful in constructing a working software product. However, participants did not display a good command of source code order and structure. Recommendations for Practitioners: Our instructional strategy provides practitioners with a framework to lay foundations in SE competencies during intensive project-based events. Based on the results of our case studies, we provide a set of recommendations for educational practice. Recommendation for Researchers: We propose an assessment framework to analyze the effectiveness of the instructional strategy from a SE perspective. This analysis provides an overall picture of the participants’ performance; other researchers could use our framework to evaluate the effectiveness of their activities, which would contribute to increasing the possibility of comparing the effectiveness of different instructional strategies. Impact on Society: Given the number of end-user developers who create software products without a formal SE training, several professional and educational contexts can benefit from our proposed instructional strategy and assessment framework. Future Research: Further research can focus on improving the assessment framework by including both process and product metrics to shed light on the effectiveness of the instructional strategies.

scholarly journals The impact of end-userś participation (cancer patients) during the optimization process

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S Houwaart
Keyword(s):  
End Users ◽  
Public Health Care ◽  
Optimization Process ◽  
Patient Organization ◽  
End User ◽  
The Public ◽  
Patient Organizations ◽  
Crucial Information ◽  
The Individual ◽  
The Impact

Abstract End-user (e.g. patients or the public) testing of information material is becoming more common in the German public health care system. However, including the end-user (in this case patients) in an optimisation process and thus enabling a close collaboration while developing PIMs is still rare. This is surprising, given the fact that patients provide the exact perspective one is trying to address. Within the isPO project, a patient organization is included as a legal project partner to act as the patient representative and provide the patient's perspective. As such, the patient organization was included in the PHR approach as part of the PIM-optimisation team. During the optimisation process, the patients gave practical insights into the procedures of diagnosing and treating different types of cancer as well as into the patient's changing priorities and challenges at different time points. This was crucial information for the envisioned application of the individual PIMs and their hierarchical overview. Moreover, the developed PIM-checklist enabled the patients to give detailed feedback to the PIMs. With their experience of being in the exact situation in which the PIMs will be applied, their recommendations, especially on the wording and layout of the materials, have been a valuable contribution to the PIM optimisation process. In this part of the seminar, we will take a closer look at the following skill building aspects: What is gained from including patients as end-users in the development and optimization of PIM?How can we reach patients to contribute to a PIM optimization process? Which requirements and prerequisites do patients have to provide to successfully work on an optimisation team?How to compromise and weigh opinions when different ideas occur? Altogether, this part will construct a structured path of productive patient involvement and help to overcome uncertainties regarding a collaboration with patient organizations.

scholarly journals Modelling End-User Behavior and Behavioral Change in Smart Grids. An Application of the Model of Frame Selection

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6674
Author(s):  
Sebastian Hoffmann ◽  
Fabian Adelt ◽  
Johannes Weyer
Keyword(s):  
Smart Grids ◽  
Online Survey ◽  
End Users ◽  
Influential Factors ◽  
System Stability ◽  
End User ◽  
Frame Selection ◽  
Model Of Frame Selection ◽  
Modes Of Governance ◽  
Strong Control

This paper presents an agent-based model (ABM) for residential end-users, which is part of a larger, interdisciplinary co-simulation framework that helps to investigate the performance of future power distribution grids (i.e., smart grid scenarios). Different modes of governance (strong, soft and self-organization) as well as end-users’ heterogeneous behavior represent key influential factors. Feedback was implemented as a measure to foster grid-beneficial behavior, which encompasses a range of monetary and non-monetary incentives (e.g., via social comparison). The model of frame selection (MFS) serves as theoretical background for modelling end-users’ decision-making. Additionally, we conducted an online survey to ground the end-user sub-model on empirical data. Despite these empirical and theoretical foundations, the model presented should be viewed as a conceptual framework, which requires further data collection. Using an example scenario, representing a lowly populated residential area (167 households) with a high share of photovoltaic systems (30%), different modes of governance were compared with regard to their suitability for improving system stability (measured in cumulated load). Both soft and strong control were able to decrease overall fluctuations as well as the mean cumulated load (by approx. 10%, based on weekly observation). However, we argue that soft control could be sufficient and more societally desirable.

SECURITY IN CLOUD COMPUTING IN INDIAN GOVERNMENT

2021 ◽  
Vol 12 (3) ◽  
Author(s):  
Nitin Vishnu Choudhari ◽  
Dr. Ashish B Sasankar
Keyword(s):  
Cloud Computing ◽  
Service Delivery ◽  
Service Providers ◽  
Cloud Service ◽  
Cloud Security ◽  
End Users ◽  
Security Architecture ◽  
Security Measures ◽  
End User ◽  
Cloud Service Providers

Abstract –Today Security issue is the topmost problem in the cloud computing environment. It leads to serious discomfort to the Governance and end-users. Numerous security solutions and policies are available however practically ineffective in use. Most of the security solutions are centered towards cloud technology and cloud service providers only and no consideration has been given to the Network, accessing, and device securities at the end-user level. The discomfort at the end-user level was left untreated. The security of the various public, private networks, variety of devices used by end-users, accessibility, and capacity of end-users is left untreated. This leads towards the strong need for the possible modification of the security architecture for data security at all levels and secured service delivery. This leads towards the strong need for the possible adaption of modified security measures and provisions, which shall provide secured hosting and service delivery at all levels and reduce the security gap between the cloud service providers and end-users. This paper investigates the study and analyze the security architecture in the Cloud environment of Govt. of India and suggest the modifications in the security architecture as per the changing scenario and to fulfill the future needs for the secured service delivery from central up to the end-user level. Keywords: Cloud Security, Security in GI Cloud, Cloud Security measures, Security Assessment in GI Cloud, Proposed Security for GI cloud

Ten conversations about identity preservation

2004 ◽  
Vol 4 (2) ◽  
pp. 111-123 ◽  
Author(s):  
Peter Goldsmith ◽  
Karen Bender
Keyword(s):  
Supply Chain ◽  
Life Science ◽  
Food System ◽  
Risk Mitigation ◽  
End Users ◽  
End User ◽  
Organizational Models ◽  
Identity Preservation ◽  
Needs Assessments ◽  
Current Risk

Dynamics in the global food system, along with a cascade of technologies, drive demands for capturing information and sharing information vertically within the supply chain. Food safety, genetic engineering, and animal welfare all have contributed to the need for enhanced information flow within the supply chain. Identity preservation in grains and oilseeds is an emerging issue that may influence the structure of agriculture in the longer term. This research addresses the following questions. While demand for high-information grains appears to be growing, where and how along the supply chain is the value created and captured? Though it appears that the economy demands ever-increasing amounts of differentiation, why do opportunities for producers and life science companies to create and capture significant new sources of value remain elusive? To answer these questions needs assessments were conducted with grain procurement executives. Their responses reveal the "buyer's calculus" where buyers balance investment in specific relationship assets with the market uplift or risk mitigation return it generates. Buying from a competitively structured industry has numerous benefits. There is a "cost" or tradeoff leaving the spot market procurement model in favor of a relationship-based model; hence the calculus. The current equilibrium state reflects the current risk-adjusted value proposition suppliers deliver to end users. Though end-user benefits are on the horizon with the next generation of biotechnologies, their emergence is insufficient to guarantee farmers and life science greater returns. End users will always balance the risk mitigation and market uplift features of a supply offering with the risks of narrowing their supply base. To drive value up the chain, suppliers need to shift away from focusing solely on the products of the future and focus on the technologies, delivery systems, and organizational models that, when bundled with new products solve problems and make end users more competitive.

scholarly journals A Mobile Health Intervention for HIV Prevention Among Racially and Ethnically Diverse Young Men: Usability Evaluation (Preprint)

2018 ◽  
Author(s):  
Hwayoung Cho ◽  
Dakota Powell ◽  
Adrienne Pichon ◽  
Jennie Thai ◽  
Josh Bruce ◽  
...  
Keyword(s):  
New York ◽  
Hiv Prevention ◽  
Mobile Health ◽  
Young Men ◽  
The United States ◽  
End Users ◽  
End User ◽  
Face To Face ◽  
Usability Problem ◽  
Prevention Curriculum

BACKGROUND Mobile health (mHealth) apps have the potential to be a useful mode of delivering HIV prevention information, particularly for young men (13-24 years) who account for 21% of new HIV diagnoses in the United States. We translated an existing evidence-based, face-to-face HIV prevention curriculum into a portable platform and developed a mobile Web app: MyPEEPS Mobile. OBJECTIVE The purpose of this study was to assess the usability of MyPEEPS Mobile from both expert and end user perspectives. METHODS We conducted a heuristic evaluation with five experts in informatics to identify violations of usability principles and end user usability testing with 20 young men aged 15 to 18 years in New York, NY, Birmingham, AL, and Chicago, IL to identify potential obstacles to their use of the app. RESULTS Mean scores of the overall severity of the identified heuristic violations rated by experts ranged from 0.4 and 2.6 (0=no usability problem to 4=usability catastrophe). Overall, our end users successfully completed the tasks associated with use case scenarios and provided comments/recommendations on improving usability of MyPEEPS Mobile. The mean of the overall Post-Study System Usability Questionnaire scores rated by the end users was 1.63 (SD 0.65), reflecting strong user acceptance of the app. CONCLUSIONS The comments made by experts and end users will be used to refine MyPEEPS Mobile prior to a pilot study assessing the acceptability of the app across diverse sexual minority young men in their everyday lives.

Sign in / Sign up

Export Citation Format

Share Document