Test Team Research Articles

Generalized software release and testing stop time policy

PurposeAlmost everything around us is the output of software-driven machines or working with software. Software firms are working hard to meet the user’s requirements. But developing a fault-free software is not possible. Also due to market competition, firms do not want to delay their software release. But early release software comes with the problem of user reporting more failures during operations due to more number of faults lying in it. To overcome the above situation, software firms these days are releasing software with an adequate amount of testing instead of delaying the release to develop reliable software and releasing software patches post release to make the software more reliable. The paper aims to discuss these issues.Design/methodology/approachThe authors have developed a generalized framework by assuming that testing continues beyond software release to determine the time to release and stop testing of software. As the testing team is always not skilled, hence, the rate of detection correction of faults during testing may change over time. Also, they may commit an error during software development, hence increasing the number of faults. Therefore, the authors have to consider these two factors as well in our proposed model. Further, the authors have done sensitivity analysis based on the cost-modeling parameters to check and analyze their impact on the software testing and release policy.FindingsFrom the proposed model, the authors found that it is better to release early and continue testing in the post-release phase. By using this model, firms can get the benefits of early release, and at the same time, users get the benefit of post-release software reliability assurance.Originality/valueThe authors are proposing a generalized model for software scheduling.

Research and Application of Cable Controlled Layered Water Injection Technology in Daqing Oilfield

Daqing Oilfield has entered the development stage of high water cut later stage, the contradiction between inter layers and interior layers is more prominent, the rate of water injection pass rate decreases rapidly, the manual test workload is huge, the existing test team can not meet the requirements; at the same time, the existing high-efficiency measurement and adjustment technology cannot provide Continuous monitoring data and real-time dynamic adjustment of downhole injection volume, for this purpose, Daqing Oilfield carried out research and research on cable-controlled intelligent layered water injection technology. The technology is mainly composed of two parts: underground cable-controlled intelligent water injection technology pipe column and ground wireless remote control system. It can realize real-time monitoring and control of underground stratified flow and pressure in the office, realize online inspection, automatic measurement and adjustment, and report output. With the function, 30 wells were tested in the field and achieved good results. This technology is a continuous, efficient and real-time new generation water injection technology.

Towards Scrum Based Agile Framework for Global Software Development Teams

Organizations are moving their workforce to guarantee matters of trade and profit where accounts are expected to be less expensive and provide better quality products with the accessibility of skilled labor. With the evident benefits, distributed teams often face challenges with reliable and efficient communication coordination patterns that lead towards project failure. In the rapidly growing software industry, it becomes critical for any business to have better management activities to acquire right processes and practices. Agile methods are considered as a remedy for mitigating distributed teams’ challenges, with their consistent focus on communication. Here, we intend to propose a tailored Scrum based solution for distributed teams that empowers anticipated communication and coordination throughout the development process. In the first phase of framework development we have evaluated the state of agile practices from both literature and industry; based on collected evidence and suggestive guidelines a scrum based agile framework was formulated. The Scrum is a project management method in Agile Methods family. Scrum is an iterative process that asks for incremental development of the product, includes cross functional development and testing teams. Evaluation results show that the proposed framework contributes positively to improve development process quality. We have performed theoretical as well as empirical evaluation to validate proposed framework. We have eight project managing rising aspects in DSD (Distributed Software Development) to evaluate the proposed framework.

Teaming: Are two communication modes better than one?

PurposeApplying media synchronicity theory (MST) as a theoretical foundation, this paper aims to examine whether teams using multiple communication modes perform better on a complex intra-team task than those using a single mode.Design/methodology/approachThe authors adopted a mixed-methods explanatory design. Data were collected from 44 teams directly following participation in the Everest Leadership and Team Simulation. Teams were assigned a specific mode of communication: virtual (text-chat only), face-to-face (FTF) or dual (FTF and chat).FindingsNo significant differences in team goals achieved were found when comparing dual modes to single modes, counter to predictions based on MST. Qualitative data indicated that FTF communication is dominant and might lead to “medium inertia” when multiple modes are available. FTF teams reported higher perceptions of team effectiveness than text-chat-only teams.Research limitations/implicationsThis study was conducted on a small number of teams in an artificial environment; therefore, generalizability is limited. Future research should consider other measures of team performance and test teams in a virtual setting where distance, as well as time, are factors.Practical implicationsFTF communication tends to be dominant to a point where virtual options are ignored, suggesting that greater awareness around communication processes required for complex tasks, and ways to appropriate different media for conveyance or convergence, is key to team performance.Originality/valueThis study highlights the importance of determining processes by which teams shift between media to maximize conveyance and convergence processes. Additionally, distinguishing between objective performance and perceptions of performance highlight an additional challenge for teams that can be explored.

Software requirements testing approaches: a systematic literature review

Testing a software system is an important step approach to ensuring quality, safety, and reliability in safety-critical systems (SCS). Several authors have published new approaches to improve the processes of testing safety requirements taking into consideration existing processes that seek to improve techniques and contribute positively with software developers. This article aims to investigate the main approaches to requirements testing, particularly focusing on safety requirements in the context of SCS. We investigated how these approaches have been developed and what contributions they provide to academia and industry. We evaluated the pros and cons of the approaches and how they related to the joint work of requirements engineers and testers. We performed a systematic literature review (SLR), selecting 53 papers published between 1990 and 2018. Our research was conducted according to the guidelines proposed by Kitchenham and Biolchini. The results of this SLR point out to the new research related to the software and safety-critical systems testing. The results show issues in the integration of requirements engineers with the application test team and gaps in the approaches found, particularly in the applications of the techniques in the industry setting. Moreover, several approaches are presented to solve problems and help to prevent future problems. The results of this research point to the main approaches to requirements testing and their use in academia and industry, as well as the advantages and disadvantages. The shortcomings allow us to suggest new research in safety-critical systems in the scope of validation, verification, specification, and testing of safety requirements, as well as to integrate test teams with requirements engineers in order to get better results. Based on the results, we suggest future studies for improvements in the requirements testing techniques to improve the integration of safety requirements and test cases.

Development of Augmented Reality Applications for the Entire Spectrum of Screw Compressor Manufacturing Process

Augmented Reality (AR) in industrial applications connects users across digital and physical worlds and coupled with rapid return of investment, easy adoption, and as a meaningful way to stand out from the competition, AR is quickly becoming increasingly common in the industrial world. This paper first provides the reader with a description on what exactly is augmented reality and the difference between augmented reality and virtual reality, before moving onto describing the scope of this new application for an organisation like Howden. A brief analysis of how augmented reality is quickly finding a footing within this sphere is offered alongside an overview of the main players and actors. The paper then focuses on how the 3D CAD modelling already completed by the research and development, bare-shaft engineering and package engineering teams can be utilised in the rapid development of augmented reality applications. Examples of how Howden are developing and using these AR applications are then given with specific reference to the Screw sales teams using them to show prospective clients the model of their package / machine; the Screw package build teams sharing knowledge using AR during package fit-out and hazard and operability studies; the bare-shaft test team using AR within their acoustic enclosure and finally the impact of AR in the service teams. The paper concludes with how, as this technology becomes more mainstream, manufacturers adopting AR can significantly add value to their customers experience both in terms of service and satisfaction but also differentiate themselves from their competitors.

Generalized multi‐release modelling of software reliability growth models from the perspective of two types of imperfect debugging and change point

AbstractOwing to release of software in multiple releases, code changes take place in software. Because of this added complexity in software, the testing team may be unable to correct the fault upon detection, leaving the actual fault to reside in the software, termed as imperfect debugging or there may be replacement of original fault by other fault, leading to error generation. Many other factors exist that affect the testing phase of software like strategies of testing, test cases, skill, efficiency, and learning of testing team. All these factors cannot be kept stable during the whole process of testing. They may change at any time moment causing the background processes to experience change, which is known as change‐point. Keeping all these critical testing environment factors under consideration, a new software reliability growth model has been proposed, which is derived from an non homogenous Poisson process (NHPP)based unified scheme for multi‐release two‐stage fault detection/observation and correction/removal software reliability models. The developed model is numerically illustrated on tandem data set for four releases.

EFEKTIVITAS KONSELING DAN TES HIV (KTHIV) BERDASARKAN PERMENKES NOMOR 21 TAHUN 2013 TENTANG PENANGGULANGAN HIV DAN AIDS DI PUSKESMAS KABUPATEN CILACAP

Abstract This study goals to know and analyze the effectiveness of Consolidating Effectiveness and Human Immunodeficiency Virus Test implementation on Human Immunodeficiency Virus and Acquired Immune Deficiency Syndrome prevention in the health public center in the Cilacap and to know and analyze the problem and find the solutions by doctors in the handling of Human Immunodeficiency Virus and Acquired Immune Deficiency Syndrome in Cilacap Health Public Center. This research uses sociological juridical approach. The data research get from interviews with the Head of Public Health Center in Cilacap and the Human Immunodeficiency Virus Counseling and Testing Team and also collecting the Constitution, documentation, literature, and internet access in Related issues with the health law. The data will be analyzed using deductive method. Based on the discussion and the data of research can be concluded that: First, Human Immunodeficiency Virus counseling at Cilacap public health center has been effective. It can be see from the existence of Counseling activities (prevention), preventive (checking Human Immunodeficiency Virus for Pregnancy period and Prospective marriage partner, doing filter test for the donation of blood and using a sterile tools in medical treatment), curative (Care and treatment of Sufferers of Human Immunodeficiency Virus and Acquired Immune Deficiency Syndrome ) at the Health Public Center based on the Regulation of Health Minister N umber 2 1 of 201 3 about the Control of Human Immunodeficiency Virus and Acquired Immune Deficiency Syndrome to reduce morbidity, mortality, limiting the infection and the complication semination in order to the epidemic does not extend to other areas and to reduce the negative impact from this virus. The Cilacap government also make the regulation Number 2 of 2015 about Human Immunodeficiency Virus and Acquired Immune Deficiency Syndrome prevention, which organize Pregnancy period and Prospective marriage partner should take a part the Human Immuno deficiency Virus test and counseling in the health care facility. Second, the problem and the solutions of Human Immunideficiency Virus Counseling and Testing in Cilacap Public Health Center it include health officer element (less the Counseling and Testing Team) so it is necessary to make another new Team, the Regulation Factor (no sanction or punishment if it refuse the test) so we need the regulation obviously, there is no private room for Counseling and Testing of Human Immunodeficiency Virus test in public health centers Keywords: Counseling, Human Immunodeficiency Virus, Acquired Immune Deficiency Syndrome Â

P110 Adoption of an Electronic Textbook with Inclusive Access and Adaptive Learning Reduces DFWI Rate in an Online Introductory Nutrition Course

Objective To determine the impact of switching from a hard copy to an electronic textbook with inclusive access and adaptive learning experiences on the drop, fail, withdraw, incomplete (DFWI) rate in an online undergraduate introductory nutrition course. Use of Theory or Research Earning a D, F, W, or I in a course has a negative effect on a student's progression towards completion of a degree. While enrollment in online courses continues to increase, student retention rates continue to decrease. One strategy suggested to increase retention, and by extension decrease DFWI rates, is using an electronic textbook with computer-based learning resources and activities that promote active learning. Target Audience Undergraduate students enrolled in an online introductory nutrition course at a Midwestern urban university from August 2012-December 2018. Program Description From Fall 2012-Spring 2017, students used a hard copy textbook (HCT). Beginning Fall 2017, students used an interactive electronic textbook (ET) with inclusive (anytime/anywhere) access that included integrated videos, online ability to highlight/take notes, and online adaptive learning-by-doing activities (study guides, diet analysis, meal planning, etc). All semesters used publisher PowerPoint presentations and test bank. Evaluation Methods The data set, with prior approval from the university Institutional Research, Assessment and Testing team, was generated using university DFWI reports. Grade and academic level data from 1034 undergraduate introductory nutrition course students (n = 810; HCT, n = 224; ET) were examined. Results Students in the ET course had statistically significant lower DFWI rates (9.4 ± 2.0%; range 6.1-11.3%) than HCT students (19.8 ± 8.2%; range 9.9-35.1%), P Conclusions Electronic textbooks with inclusive (anytime/anywhere) access on multiple digital platforms facilitate incorporating adaptive learning experiences into courses. Nutrition educators should consider this strategy to foster active student engagement in mastering basic food and nutrition knowledge with the added benefit of decreasing DFWI rates. Funding None.

Automated Testing of Simulation Software in the Aviation Industry: An Experience Report

An industry-academia collaboration developed a test automation framework for aviation simulation software. The technology has been successfully deployed in several test teams.

People-process-performance benchmarking technique in cloud computing environment

Purpose Cloud computing is relatively a new type of technology demanding a new method of management techniques to attain security and privacy leading to customer satisfaction regarding “Business Protection” measure. As cloud computing businesses are usually composed of multiple colocation sites/departments, the purpose of this paper is to propose a benchmark operation to measure and compare the overall integrated people-process-performance (PPP) among different departments within cloud computing organization. The purpose of this paper is to motivate staff/units to improve the process performance and meet the standards in a competitive approach among business units. Design/methodology/approach The research method was conducted at Cirrus Ltd, which is a cloud computing service provider where a focus group consists of six IT professionals/managers. The objective of the focus group was to investigate the proposed technique by selecting the best practices relevant criteria, with the relevant sub-criteria as a benchmarking performance tool to measure PPP via an analytic hierarchy processing (AHP) approach. The standard pairwise comparative AHP scale was used to measure the performance of three different teams defined as production team, user acceptance testing team and the development team. Findings Based on best practice performance measurement (reviewed in this paper) of cloud computing, the proposed AHP model was implemented in a local medium-sized cloud service provider named “Cirrus” with their single site data center. The actual criteria relevant to Cirrus was an adaptation of the “Best practice” described in the literature. The main reason for the adaptation of criteria was that the principle of PPP assumes multiple departments/datacenters located in a different geographical area in large service providers. As Cirrus is a type of SMEs, the adaptation of performance measurement was based on teams within the same data center location. Irrelevant of this adaptation, the objective of measuring vendors KPI using the AHP technique as a specific output of PPP is also a valid situation. Practical implications This study provides guidance for achieving cloud computing performance measurement using the AHP technique. Hence, the proposed technique is an integrated model to measure the PPP under monitored cloud environment. Originality/value The proposed technique measures and manages the performance of cloud service providers that also implicitly act as a catalyst to attain trust in such high information-sensitive environment leading to organizational effectiveness of managing cloud organizations.

Impacts of networking effects on software reliability growth processes: A multi‐attribute utility theory approach

AbstractSoftware reliability growth models, which are based on nonhomogeneous Poisson processes, are widely adopted tools when describing the stochastic failure behavior and measuring the reliability growth in software systems. Faults in the systems, which eventually cause the failures, are usually connected with each other in complicated ways. Considering a group of networked faults, we raise a new model to examine the reliability of software systems and assess the model's performance from real‐world data sets. Our numerical studies show that the new model, capturing networking effects among faults, well fits the failure data. We also formally study the optimal software release policy using the multi‐attribute utility theory (MAUT), considering both the reliability attribute and the cost attribute. We find that, if the networking effects among different layers of faults were ignored by the software testing team, the best time to release the software package to the market would be much later while the utility reaches its maximum. Sensitivity analysis is further delivered.

An Empirical Study on the Issues of Traditional Defect Life Cycle in Agile Model

In an Agile workflow, work is divided into sprints and each sprint has a particular activity which needs to be completed. Agile aligns development activity with customer’s requirement. It is an iterative progress methodology, where requirements develop through association between the customer and self-organizing teams. As there is less documentation available in agile methodology, product team, development team and testing team need to work in close association to develop the quality software with minimum defect leakage. In this paper, we analyze empirically the defect life cycle for agile model to determine the correct phases of a defect in the agile workflow. Results obtained may help team to optimize the time and develop the quality software with minimum defect leakage.

Effort based software reliability model with fault reduction factor, change point and imperfect debugging

The growing need of software’s in almost every sphere of life has increased the demand of producing error free software’s. But producing high quality software needs resources (effort and time). Numerous time and effort based models were developed in literature with the assumptions of imperfect debugging and change point. Where imperfect debugging is the inefficiency of testing team to remove the faults perfectly due to the insufficient understanding of the software and change point as the time where change in fault detection takes place due to change in various strategies. An important attribute having an impact on software reliability is fault reduction factor (FRF) which is defined as the total number of removed faults in proportion to the experienced failures. In this paper, we have proposed a generalized framework to develop effort based software reliability model with FRF, change point and error generation. For the purpose of model validation and parameter estimation, two real datasets have been used.

A Reliable and an Efficient Web Testing System

To improve the reliability and efficiency of Web Software, the Testing Team should be creative and innovative, the experience and intuition of Tester also matters a lot. And most often the destructive nature of Tester brings reliable software to the user. Actually, Testing is the responsibility of everybody who is involved in the Project. But, one’s personal curiosity and attention is more important than the various techniques and tools available in the market for Web Testing due to the phenomena that Software Testing is an art. In this study, we are actually discussing certain techniques and tools which can be helpful to minimize bugs in Web Application and achieve reliability and efficiency to a certain level. Indeed, for bettering the quality of Web Application, Testing may not be considered as the only effective method because no one can certify that a system is bug-free. This paper presents some essential web testing techniques, strategies, methods and tools which need to be focused on when performing Web Testing for several web applications in order to achieve better results

Assessing for Fetal Alcohol Spectrum Disorder.

Background The recommended "gold standard" for Fetal Alcohol Spectrum Disorder (FASD) assessment involves a multidisciplinary diagnostic team and comprehensive battery of neuropsychological tests to evaluate functioning across 10 brain domains. The current Canadian Guideline for diagnosis of FASD outlines a list of test measures for assessment; however, very little research exists to explore which specific tools are being used in clinical practice. Objectives The purpose of the current study was to gain a better understanding of the testing measures used by FASD clinicians in Alberta, Canada. Methods A survey was sent to coordinators of 23 Alberta FASD clinics requesting them to distribute the survey to their diagnostic team members, including physicians, psychologists, speech-language pathologists (SLPs), and occupational therapists (OTs). Results A wide range of measures (both direct and indirect; n = 173) to assess brain domains were reported by clinics. Many tests were used to assess function across multiple brain domains. Most of the commonly used tests aligned with those suggested in the Canadian Guideline; however, there were many additional measures being used that were that were not listed in the Guideline. Conclusions This study revealed important information about the use of testing measures in FASD assessment and sheds light on the commonalities in practice across clinics in Alberta. Results demonstrate strong convergence of direct and indirect measures to assess brain function. Ultimately, identifying a comprehensive, reliable, and usable testing battery of measures for FASD assessment will improve the clarity and accuracy of the diagnostic process and facilitate advancements in the field, as well as enable comparisons across clinics.

Time Factory

Have you asked yourself how you will look over 15 years? At the Bosch factory in Jucu, we saw a time machine that can help you to travel for 15 years in the future. And the technologies used seem to have come from the reality of the next decades. This "time machine" is, in fact, part of Bosch's Engineering, Quality and Validation Laboratory (EQV). It's the test room, where the products are "aged" for 15 years to analyze how they can withstand the passage of time and the action of natural phenomena - storm, equatorial rain or frost. The EQV lab concept was created from the idea of synergy between R&D departments and production, a configuration that can provide a holistic view of Bosch products that are being analyzed from the initial development phase of the product until the product returns to the laboratory to investigate possible defects that occurred during their use. "We test the product's resistance to equatorial rain, for example. If it is an electronic component mounted on a machine that will go to South America and we know that there is very high humidity in that area, here we simulate the aging of samples in a more accelerated way, "explains Grasim Robert, head of the analysis group of the EQV lab. But they are not the only tests the products are subjected to. The water resistance of the samples is also done with a very strong 6 bar jet and the water has a force similar to that coming from a fire hose. Other tests check for resistance to different types of dust - for example, Arizona powder is more abrasive and worn plastic components, while ash-containing dust can lead to short-circuits - or saline mist, which activates corrosion mechanisms. In the climatic rooms, explains Grasim Robert, there are several parameters: Time, temperature and humidity. Depending on ISO standards and customer requirements, the test team varies these three physical parameters. There are tests that last for 10-12 months. In other words, a 15-year journey in the future still takes a few months, but taking into account the pace with which technology evolves, it is obvious that this duration is reduced.

Medi-Test: Generating Tests from Medical Reference Texts

The Medi-test system we developed was motivated by the large number of resources available for the medical domain, as well as the number of tests needed in this field (during and after the medical school) for evaluation, promotion, certification, etc. Generating questions to support learning and user interactivity has been an interesting and dynamic topic in NLP since the availability of e-book curricula and e-learning platforms. Current e-learning platforms offer increased support for student evaluation, with an emphasis in exploiting automation in both test generation and evaluation. In this context, our system is able to evaluate a student’s academic performance for the medical domain. Using medical reference texts as input and supported by a specially designed medical ontology, Medi-test generates different types of questionnaires for Romanian language. The evaluation includes 4 types of questions (multiple-choice, fill in the blanks, true/false, and match), can have customizable length and difficulty, and can be automatically graded. A recent extension of our system also allows for the generation of tests which include images. We evaluated our system with a local testing team, but also with a set of medicine students, and user satisfaction questionnaires showed that the system can be used to enhance learning.

Views on the practical determination of sustainability sittings of optical vehicles of literal apparatus registration

The resolution of on-board optical means of registration of aircraft under operating conditions depends on various factors. Very often a question arises about the assessment of the resolution of on-board optical means of registration of aircraft in conducting heterogeneous tests without having the necessary devices and devices in its arsenal. But before the testers there is no problem determining the quality of imaging or the requirements for on-board optical systems, and the task of how to simply and visually test or evaluate the resolution of on-board optical systems of aircraft. There are formulas, corresponding summary tables that allow you to make the necessary calculations to determine the specific values of these factors to achieve the specified parameters, however, for maximum convenience, a scheme - a layout (hereinafter - Measure) is proposed that allows determining the resolution of the installed photo and video equipment on aircraft by measuring the distance between two contrasting objects in Measure, where the camera begins to distinguish them as separate colors. Measurements are performed by analyzing the video (photo) of the image of the measure obtained from a certain distance. The visible part of Miri is analyzed, which distinguishes two contrasting colors. The resulting image is compared to its actual appearance, and thus the real resolution (the distance between the two visible segments) is determined. Thus, the Measure is intended for evaluation during testing of resolution of photo, video equipment (means of objective control) of aircraft. The considered technique will allow during the tests to move away from the theoretical part of calculations to assess the resolution of optical means of registration of aircraft. In addition, its production does not require significant material costs, and in the case of fabric or plastic film, it allows for its compact transportation and storage. The use of the proposed layout for the assessment of resolution will allow the test team, in the shortest possible time and with minimum equipment, to determine the compliance of the resolution of the optical means of registration of aircraft with the declared requirements in the conditions of flight experiments.

Hurricane Florence tests team at Brunswick Medical Center.

The rainfall unleashed across North Carolina by Hurricane Florence—about 8 trillion gallons, according to an unofficial estimate from the National Weather Service—meant several days of isolation for the team members of Novant Health Brunswick Medical Center. “Brunswick County was basically