Reliability Of Information Systems Research Articles

Employees’ Engagement in the Context of the Reliability of Information Systems in the Organization

Employees’ Engagement in the Context of the Reliability of Information Systems in the Organization

Математическое моделирование отказоустойчивости информационных систем

The article deals with the problem of reliability of information systems, in order to solve this problem, a method for assessing the fault tolerance of data transmission systems using the apparatus of mathematical modeling of faulttolerant systems with three levels of operation was introduced. Also the mathematical model in the form of a graph of states and the probability of failure with a system of differential equations for its description was formulated. The solution of mathematical model allows to obtain the probability of failure at different levels of functioning of information systems in order to detect and find faults and equipment failures.

THE EFFECTIVENESS OF SERVICE QUALITY AND ACADEMIC SYSTEM INFORMATION TOWARD THE SATISFACTION AND LOYALTY OF STUDENT ( RESEARCH AT HARAPAN BANGSA PURWOKERTO INSTITUTE OF HEALTH SCIENCES )

The purpose of this study was to find out the influences of service quality dimensions such as tangibles, reliability, responsiveness, assurance, empathy and Academic System Information to satisfaction and the influences of all variables to loyalty of students at Harapan Bangsa Purwokerto institute of health sciences. The used technique sampling in this study was random sampling method. The sample in this research was 128 respondents. The data collecting techniques is used observation and questionnaires. The data analytical technique used research instrument test such as validity and reliability tests, linearity test, hypothesis tests such as path analysis, t test, F test, determination coefficient, and coefficient correlation of variables. The test results showed that all instruments were valid and reliable. The analysis results of this study shown that: tangible, reliability, and assurance had a positive and significant effect to satisfaction, responsiveness and Academic Information System had a positive but insignificant effect to satisfaction. Empathy had a negative and insignificant effect to satisfaction. Tangibles, reliability, empathy and satisfaction had a positive and significant effect to loyalty, responsiveness and satisfaction had a positive but insignificant effect to loyalty, and assurance and Academic Information System had a negative and insignificant effect to loyalty. Tangibles, reliability, responsiveness, assurance, empathy, trust and satisfaction simultaneously had a significant effect to loyalty. The results of path analysis showed that: the direct effect of tangibles to loyalty was more effective rather than the indirect effect via satisfaction. The indirect effect of reliability to loyalty via satisfaction was more effective rather than the direct effect to loyalty. The direct effect of responsiveness to loyalty was more effective rather than the indirect effect via satisfaction. The indirect effect of assurance to loyalty via satisfaction was more effective rather than the direct effect to loyalty. The direct effect of empathy to loyalty was more effective rather than the indirect effect via satisfaction. The indirect effect of Academic Information System to loyalty via satisfaction was more effective rather than the direct effect to loyalty. The indirect effect of satisfaction as variable of intervening in this study was able to mediate variable of reliability, assurance and Academic Information System to loyalty but it was unable to mediate variable of tangibles, responsiveness and empathy to loyalty. Tangible was the most dominant variable effect to loyalty. The total effect of tangible to loyalty via satisfaction was most dominant total effect to loyaltyKeywords: Service quality dimensions, Academic Information System, satisfaction, and loyalty.

Analytical justification of formulas for calculating the probability of failure-free operation for simple reliability models

In the majority of works connected with research of reliability of production and other technical systems the Kolmogorov axiomatics is applied. The corresponding analytical apparatus allows to solve problems of maximization of probability of performance of production tasks (for example, daily schedule of steel smelting or monthly production plan). Evaluation of reliability of both production and information systems is a mandatory procedure in their design and is based on the construction of a special structural scheme, called the system model for calculating its reliability. It should be noted that Kolmogorov’s axioms are formulated for a system consisting of two elements. The corresponding graphical explanation of axiom equity is based on an imaginary experiment on a random drop of a certain point on a unit square, inside of which there are two intersectingcircles whose planes are proportional to the probability of reliable operation of the corresponding elements. But there is no mention that the centers of circles should be at a certain distance from each other. In this paper, for the known Kolmogorov axioms underlying the classical probability theory, their analytical conclusion is given.

Outcomes of community-based differentiated models of multi-month dispensing of antiretroviral medication among stable HIV-infected patients in Lesotho: a cluster randomised non-inferiority trial protocol

BackgroundCurrent World Health Organization (WHO) guidelines recommend early initiation of HIV positive patients on antiretroviral therapy (ART) irrespective of their clinical or immunological status known as the test and start approach. Lesotho, like many other countries introduced this approach in 2016 as a strategy to reach epidemic control. There will be rapidly growing number of HIV-infected individuals initiating treatment leading to practical challenges on health systems such as congestion, long waiting time for patients and limited time to provide quality services to patients. Differentiated models of ART delivery is an innovative solution that helps to increase access to care, while reducing the burden on existing health systems. Ultimately this model will help to achieve retention and viral suppression. We describe a demonstration study designed to evaluate a community-based differentiated model of multi-month dispensing (MMD) approaches of ART among stable HIV patients in Lesotho.MethodsThis study will be a three-arm cluster randomised trial, which will enrol approximately 5760 HIV-infected individuals who are stable on ART in 30 selected clusters. The clusters, which are health facilities, will be randomly assigned into the following differentiated model of care arms: (i) 3 monthly ART supply at facilities (Control), (ii) 3 monthly ART supply through community ART groups (CAGs) and (iii) 6 monthly ART supply through community ART distribution points (CAD). Primary outcomes are retention in care and virologic suppression, and secondary outcomes include feasibility and cost effectiveness.DiscussionImportant lessons will be learnt to allow for improved implementation of such demonstration projects, including various needs for reliable supply of medication, access to quality clinical data including access to viral loads (VLs) results, frameworks to support lay worker cadre, involvement of community stakeholders, and reliable data systems including records of key indicators. MMD will have positive implications including improved retention, virologic suppression, convenience and access to medication.Trial registrationClinicalTrials.gov Identifier: NCT03438370. Accepted on 16 February 2018.

Korzyści i problemy implementacji systemów w środowisku chmury obliczeniowej – studia przypadków polskich przedsiębiorstw

Using cloud computing with web technology affects the scalability, reliability and availability of information and data systems, often reducing the cost of organization. The use and transfer to the cloud of IT systems, including the ERP, can be a source of many problems and difficulties. The aim of the article is, apart from theoretical considerations, an indication of how Polish companies perceive the advantages and barriers of implementation cloud based ERP. The article presents two case studies from Polish companies.

Understanding Health-Related Quality of Life in Caregivers of Civilians and Service Members/Veterans With Traumatic Brain Injury: Establishing the Reliability and Validity of PROMIS Fatigue and Sleep Disturbance Item Banks

ObjectiveTo examine the reliability and validity of Patient-Reported Outcomes Measurement Information System (PROMIS) measures of sleep disturbance and fatigue in traumatic brain injury (TBI) caregivers and to determine the severity of fatigue and sleep disturbance in these caregivers. DesignCross-sectional survey data collected through an online data capture platform. SettingA total of 4 rehabilitation hospitals and Walter Reed National Military Medical Center. ParticipantsCaregivers (N=560) of civilians (n=344) and service member/veterans (SMVs) (n=216) with TBI. InterventionNot applicable. Main Outcome MeasuresPROMIS sleep and fatigue measures administered as both computerized adaptive tests (CATs) and 4-item short forms (SFs). ResultsFor both samples, floor and ceiling effects for the PROMIS measures were low (<11%), internal consistency was very good (all α≥0.80), and test-retest reliability was acceptable (all r≥0.70 except for the fatigue CAT in the SMV sample r=0.63). Convergent validity was supported by moderate correlations between the PROMIS and related measures. Discriminant validity was supported by low correlations between PROMIS measures and measures of dissimilar constructs. PROMIS scores indicated significantly worse sleep and fatigue for those caring for someone with high levels versus low levels of impairment. ConclusionsFindings support the reliability and validity of the PROMIS CAT and SF measures of sleep disturbance and fatigue in caregivers of civilians and SMVs with TBI.

Building capacity in health and education systems to deliver interventions that strengthen early child development.

Building capacity within health and education systems of low- and middle-income countries in order to deliver high-quality early childhood services requires coordinated efforts across sectors, effective governance, sufficient funding, an adequate workforce, reliable data systems, and continuous monitoring, evaluation, and improvement cycles; it also requires partnerships with the private sector, communities, and parents. In addition, building capacity requires leadership, innovation of strategies to fit into existing structures, evidence-based intervention models, and effective partnerships that help make interventions more culturally relevant, help finance them, and help create institutional long-term support and sustainability for them. In this article, we focus on identifying eight critical aspects of enabling systemic support for early childhood services. Every action that strengthens these critical aspects should be seen as necessary, but insufficient, steps toward a national strong governance structure for delivering a locally relevant and comprehensive early child development program that promotes children's developmental potentials.

Optimation of Operation System Integration between Main and Feeder Public Transport (Case Study: Trans Jakarta-Kopaja Bus Services)

Promoting a better public transport is a key strategy to cope with urban transport problems which are mostly caused by a huge private vehicle usage. A better public transport service quality not only focuses on one type of public transport mode, but also concerns on inter modes service integration. Fragmented inter mode public transport service leads to a longer trip chain as well as average travel time which would result in its failure to compete with a private vehicle. This paper examines the optimation process of operation system integration between Trans Jakarta Bus as the main public transport mode and Kopaja Bus as feeder public transport service in Jakarta. Using scoring-interview method combined with standard parameters in operation system integration, this paper identifies the key factors that determine the success of the two public transport operation system integrations. The study found that some key integration parameters, such as the cancellation of “system setoran”, passenger get in-get out at official stop points, and systematic payment, positively contribute to a better service integration. However, some parameters such as fine system, time and changing point reliability, and information system reliability are among those which need improvement. These findings are very useful for the authority to set the right strategy to improve operation system integration between Trans Jakarta and Kopaja Bus services.

Fog-computing concept usage as means to enhance information and control system reliability

This paper focuses on the reliability issue of information and control systems (ICS). The authors propose using the elements of the fog-computing concept to enhance the reliability function. The key idea of fog-computing is to shift computations to the fog-layer of the network, and thus to decrease the workload of the communication environment and data processing components. As for ICS, workload also can be distributed among sensors, actuators and network infrastructure facilities near the sources of data. The authors simulated typical workload distribution situations for the “traditional” ICS architecture and for the one with fogcomputing concept elements usage. The paper contains some models, selected simulation results and conclusion about the prospects of the fog-computing as a means to enhance ICS reliability.

Probabilistic models reliability of information and control systems

The paper deal with devoting the problem of reliability prediction and modeling the functioning process of information and control systems (ICS), which are described by the Markov random process. The methodology of the study consist in considering ICS as Markov systems. Modeling the functioning process of information and control systems will increase authenticity and reliability of information from the ICS, as well as improve the efficiency of its work. As an example, the mathematical model of the functioning the computer system of the dispatch service is constructed in the paper. Mathematical modeling was conducted in the environment of MathCad. Mathematical modeling allows determining the average number of steps before system moves into the absorbing state. Taking into account the length of stay the system in each condition allows determining the average life of the system until the full failure. The development of model and technology for calculating the characteristics of stochastic systems allows investigating a wide class of such systems and determining optimal maintenance operation term in order to ensure reliability and reduce the waste on downtime.

Distributed Information and Control system reliability enhancement by fog-computing concept application

The paper focuses on the information and control system reliability issue. Authors of the current paper propose a new complex approach of information and control system reliability enhancement by application of the computing concept elements. The approach proposed consists of a complex of optimization problems to be solved. These problems are: estimation of computational complexity, which can be shifted to the edge of the network and fog-layer, distribution of computations among the data processing elements and distribution of computations among the sensors. The problems as well as some simulated results and discussion are formulated and presented within this paper.

Information System for Prevention of National Healthcare Insurance Fraud Among Inpatients of Advanced Referral Health Services

Background: The National Health Insurance (JKN) was started from January 1st, 2014, however every year there was a deficit between the income of the Social Security Administrator Healthcare (BPJS Kesehatan) and the money paid to healthcare facilities. One of the causes was the potential for JKN fraud in inpatient services at advanced referral health facilities (FKRTL). As a response, the Ministry of Health, the Corruption Eradication Commission (KPK) and other JKN stakeholders currently are developing a JKN fraud prevention, early detection, investigation and action system.Objective: This research aimed to analyze the implementation of the new information system for potential JKN fraud prevention and detection in inpatient services for JKN participants in RSUP Dr. Soeradji Tirtonegoro as an example of FKRTL.Design: This study used cross-sectional methods in assessing JKN fraud in single episodes of patient care by using JKN fraud indicators in the information system. We identified potential JKN fraud during April-July 2017 from JKN claim data. Reliability of information system was assessed by HOT-Fit research questionnaire (Human Organization Technology and Benefit) and Stata® software.Results: The data shown there was a significant decrease in potential JKN fraud conducted by FKRTL between April-July 2017: in April 14 findings, May 8 findings, June 1 findings, and July there were no findings. Prevention and early detection of potential JKN fraud among hospitalized JKN participants were conducted effectively by using an information system that contains indicators of JKN fraud. Reliability analysis of information system on the patient administration officers (TURP), BPJS Kesehatan officers and hospital internal verification officers resulted in alpha Cronbach value of &gt; 0.8.Conclusions: The results show that the information system is reliable to prevent and early detect potential JKN fraud in inpatient services for JKN participants in FKRTL. Information system is effective and reliable for prevention and early detection potential National Health Insurance fraud in service of inpatient advanced referral health services.

新聞報道による情報システム事故の信頼性・安全性の分析(情報システムの信頼性・安全性)

新聞報道による情報システム事故の信頼性・安全性の分析(情報システムの信頼性・安全性)

Improving Reliability of Railway Interlocking System with Component-based Technology( Reliability and Maintainability of Information Systems)

Improving Reliability of Railway Interlocking System with Component-based Technology( Reliability and Maintainability of Information Systems)

Reliability of information systems in organization in the context of banking sector: Empirical study from Poland

The notion of information systems (IS) reliability in organization is discussed in this article. It contains critical review of the literature, definition of IS reliability and brief overview of the theoretical model of IS reliability in organization developed by the author (including system reliability, information reliability, service reliability and usage reliability). The potential use of the model of IS reliability is demonstrated as a part of empirical research devoted to the analysis and evaluation of IS by the information technology (IT) specialists from inside and outside of the banking sector. The analysis is based on survey conducted among more than 200 IT specialists from and outside of the banking sector in Wroclaw, Lower Silesia, Poland. Banking sector is given as an example due to its uniqueness—extreme sensitivity to IS reliability and accuracy. The analysis of IS reliability in organization is supplemented by the comparison of the way of understanding the notion by the two groups of specialists in order to verify whether the IS reliability is understood in the same way by industry sectors differing in terms of their sensitivity to IS support.

Application of methods of organizing complex expert examinations for increasing reliability and failure robustness of information systems and complexes

The article provides a review of approaches and methods used by Russian and foreign authors for solving tasks of increasing reliability and failure robustness of information systems (IS) and hardware and software complexes. The methods of organizing complex expert examinations (МОСEE) are described and the possibility and necessity of МОСEE combined application for analyzing reliability and failure robustness of IS, their components and hardware and software complexes are proven. The following methods and models were used to perform a comprehensive assessment: PATTERN methodology, G.S. Pospelov’s method of solving matrices, models based on the information approach of А. А. Denisov. A number of modifications of the above МОСEE is offered; methodology of system analysis for solving a task of assessing reliability of information system and its components has been developed; a conceptual model of methodology of developing new solutions in the field of IS and IT has been built.

Разработка моделей для исследования надёжности восстанавливаемой после отказов информационной системы с архитектурой «клиент-сервер»

Разработка моделей для исследования надёжности восстанавливаемой после отказов информационной системы с архитектурой «клиент-сервер»

Potential Contribution of Drones to Reliability of Kenya's Land Information System

Potential Contribution of Drones to Reliability of Kenya's Land Information System

The Relationship between Accounting Information Systems and Making Investment Decisions in the Industrial Companies Listed in the Saudi Stock Market

The study aimed to measure the relationship between the investment decision-making in the industrial companies listed in the Saudi Stock Market with the (IVs) characteristics of the accounting information systems (appropriateness and reliability, comparability and understanding), and renovation and maintenance of the hardware and software. The problem in the Kingdom of Saudi Arabia is that the government depends on oil revenues more than on attracting investments, therefore, the importance of this study is constituted by the provision of critical recommendations to policy makers in the Kingdom of Saudi Arabia in order to overcome this issue and improve the investments. In order to achieve the objectives of this study, questionnaires were administered to 194 people representing the study population; a multiple regression (standard regression) was also used to test the study hypotheses. In general, all variables were positively significantly related with the investment decision-making.The findings of this study also showed that the independent variables explained more than 65% of the variance in investment decision-making. The Saudi government and policy makers should issue new regulations to increase the interest in accounting information systems in order to attract the investment. In relation to the practical and theoretical contribution, this study used new variables in the new model, such as renovation and maintenance of the hardware and software. Furthermore, practical contribution will help policy makers and the Saudi government to advance in this area and implement new policies for investors in order to protect the economy and the society stability due to the war in Yemen and Syria.