Gantt Chart Research Articles

Business Education and Training During the Enterprises' Digital Transformation: Notation Alignment and Equivalence Rules Among the Enterprises' Business Process Models

Business process modeling attracts great importance in enterprises due to the need for a graphically simplified and less verbal way to manage their operations. Nevertheless, the existence of various process modeling standards across the different departments of the same enterprise, such as Business Process Modeling Notation (BPMN) diagrams, classic flowcharts, Gantt charts and Petri nets, urges their notation alignment. After the business process model nota-tion alignment, complex constraints and relationships among the enterprise's department processes can be automated and simplified. In the light of the digital transformation of today's enterprises, the main objective of this paper is the proposal of a straightforward and simplified business educational equivalence table so that a direct conversion among BPMN diagrams, flowcharts, Gantt Charts and Petri Nets can be locally fulfilled by non-specialized personnel in each enterprise's department. The methodology of this paper can be generalized in every enterprise where the aforementioned process modeling standards across its different departments coexist.

Project Delivery of Goods With Limited Resources and Minimum Time Using Fuzzy Logic Method

In solving the problem of fuzzy application for scheduling delivery of goods with a limited power source and minimal time, the problems that are still not considered in the RCPS problem modeling are the uncertainty characteristics of the parameters of the timing of activities in the delivery project. Even though this can be solved by using the PERT (Project Evaluation and Review Technoloque) method with a probabilistic approach, this technique still ignores the limitations of the supply of resources. Actually, a probabilistic approach can be used, if previously provided data about the experience in completing similar projects. But if the project is a new project or the techniques and methodologies used to complete a new project, such as new techniques and methodologies in software engineering, among others: object-oriented design and programming, computer-aided software design, user interface management systems, fourth generation languages, etc., then the probabilistic approach is not suitable. 
 In this situation, the decision maker must be able to estimate the cost and time duration, of all activities in the project based on existing experience, related to the level of knowledge they have, about new techniques and methodologies to be applied, and the level of human resource expertise. which are available. This method of estimating project costs and time, which is more precise, uses representations in the form of fuzzy numbers, namely fuzzy sets in the set of real numbers that are normal, convex, and closed intervals. The delivery time is modeled as a fuzzy number of LR types IKiri, IKanan, α, β, with three values ​​of α-cuts E = 0.3, L = 0.7, and I = 1.0. The fuzzy transformation model is based on three pairs of inferior and superior values ​​from α-cuts. The priority for scheduling delivery of goods is based on the smallest early start time EST value. Resources are solved by serial and parallel models. The smallest makespan value is used to determine the best solution. Goods delivery settlement uses fuzzy operations, namely arithmetic operations and relation operations. 
 Analysis of the output oftware based on testing with test scenarios (table ^ .50) for some input data shows that the parallel method is better than the serial method. This is indicated by the large difference in makespan value generated from the two methods. Based on input data from a software development project, the serial method gives makespan values ​​in the range between 675.0 and 867.0, while the parallel method gives makespan values ​​in the range between 116.0 and 259.0. The analysis of the output software in a fuzzy Gantt Chart representation shows that an activity can be scheduled with varying degrees of optimism. The degree of optimistic activity scheduling can be graded in linguistic terminology between two extreme pessimistic and optimistic values, namely very pessimistic, pessimistic, slightly pessimistic, slightly optimistic, optimistic, very optomistic.

A Comparison of the Application of the SMED Methodology in Two Different Cutting Lines

Purpose: This study was carried out in a cork company and its purpose was to observe and analyze the practices and methods used during the tools/series change moments and to propose improvements and alternatives to these same procedures so that the time needed to carry out the setup is reduced by 15% in both lines. Methodology/Approach:The methodology included the following phases: 1st - historical data collection and setup video recording, 2nd - footage analysis and conduction of informal interviews with employees, 3rd - flow, Gantt, and spaghetti charts creation and making of an action plan based on the waste and improvement opportunities identified in video analysis, 4th - validation with the line workers of the new operating mode created with the Single Minute Exchange of Dies (SMED) tool and communication to the Maintenance department about their role in this project, 5th - making and placement of plasticized cards on the cutting lines to ensure that new operating mode is followed and carrying out the actions identified in the action plan. Findings: Throughout this project using observations, video recording and its subsequent analysis, as well as interviews to the workers operating in the line, it was found the existence of several actions carried out by them during the setups which did not add value to the product, lack of adequate tools for the work to be performed and lack of work tools in general Research Limitation/implication: The study was limited by the lines and products under study and by the duration of the curricular internship, which was about five months. Originality/Value of paper: The article demonstrates the added value in terms of product quality and production output rate that SMED methodology can bring to companies that adopt the lean philosophy and in particular this continuous improvement tool.

Cost Optimization of the Medical Tourism Market Research Project in Poland and Turkey

Research and development projects constitute a specific group of activities carried out in the course of scientific research. The purpose of this article was the analysis of the planned research and development project related to the research on medical services market in Poland and Turkey in the aspect of cost optimization. The analyzed project was designed to examine consumer behavior in the market of a new and growing tourism sector, i.e. medical tourism. Medical tourism is currently defined as the traveling of people to a foreign country in order to undergo planned treatment there, caused by financial or qualitative reasons or due to the unavailability of services in the country of residence. The aim of the planned research project was to compare the behavior of two different groups of stakeholders on two different markets - Polish and Turkish. Efficient implementation of a research project requires precise planning of all activities that should be conducted. The performed analysis showed that regardless of the location of the planned project, its schedule consists of similar components, but the time and costs associated with the project will be different and will largely depend on the location of the research. In the article, in order to optimize the basic parameters of a research project carried out in various destinations, a traditional project management tool, i.e. the Gantt chart, was used, and complemented with the cost gradient concept. The use of both those tools made it possible to identify activities, the change of which has the greatest impact on the cost and time optimization of the project in Poland and Turkey. The analysis of the research project carried out in various destinations showed that, regardless of the location of the research project, shortening its time is associated with a similar increase in the cost of the project, despite the fact that it concerns different activities in both analyzed cases. As a rule, the implementation of a project, including a research project, should be preceded by planning, which enables its subsequent optimization using traditional project management tools.

ANÁLISIS DEL PROYECTO PARA LA INSTALACIÓN DE UN MOLINO DE PIEDRA EN LA CANTERA DE CABEZAS, UNIÓN DE REYES

This article is carried out in the Base Business Unit (UEB) Cantera de Cabezas, belonging to the Business Group of the Construction Materials Industry, with the aim of: analyzing the start-up of an investment project in the installation of a stone mill to obtain marl powder. The methods and techniques used are to study of the demand and the feasibility of the project, direct observation, Gantt chart. With the application of the aforementioned methods it was obtained as a result that with the installation of the stone mill the production of marl powder (coco) is increased, a total management of the generated waste is guaranteed and the duration of the project is 7 months and 4 days with a total cost of $ 45817.92. For the implementation of the techniques, were used tools such as Microsoft Office, Visio 2010, Project Professional 2010 and EndNote X8.

Biomethane in Poland—Current Status, Potential, Perspective and Development

Every year the interest in biofuels, including biomethane, grows in Poland. Biomethane, obtained from biogas, is widely used in the Polish economy; the most important two applications are as gas injected into the gas grid and as automotive fuel. The aim of this work is to determine the potential for the development of the biomethane sector in Poland. The following article presents the technological stages of biomethane extraction and purification. The investment process for biogas/biomethane installation is presented in the form of a Gannt chart; this process is extremely long in Poland, with a duration of three years. In the coming months, the Polish Oil Mining and Gas Extraction will begin to invest in biomethane, which will be connected to the gas grid, while the Polish oil refiner and petrol retailer, Orlen, will invest in biomethane to be used as automotive fuel. This article includes a SWOT (Strengths, Weaknesses, Opportunities, Threats) and PEST (Political, Economic, Social, Technological) analysis of the biogas/biomethane sector in Poland. The main barriers to the development of the biogas/biomethane sector in Poland are high investment costs, long lead times and a strong conventional energy lobby. The most important advantages of biogas/biomethane technology in Poland include environmental aspects, high biomethane potential and well-developed agriculture. The development of biogas/biomethane technology in Poland will slowly reduce environmental pollution, reduce carbon dioxide emissions and allow for partial independence from the importing of natural gas.

How to manage scope, time and cost of project management plan to develop manufacture information system

The information system project must be built with the right processes as especially the project management. The Right Management Project will create a good and right product. And also will reach optimal satisfy users. So we must management the project very well. In management project have triple constraints that are scope, time and cost management. In this research manage scope, time and cost of project management plan to develop manufacture information system with study case on a company that manufacture plastic bag because the stakeholder want to know how complete the application will be built and how long it will be take and how much it will be cost to develop manufacture information system. It is done to minimize project failures before start to develop. So the researches focus to manage scope, time and cost of project management to develop manufacture information system. This paper present outputs from our research such as product scope, project scope, work breakdown structure (wbs), project duration which are equipped with predecessor and milestones, Gantt chart tables, as well as project cost estimates.

Case Article—The SafeBirth Clinic

The effective utilization of capacity is an important operational goal that managers strive to achieve. Most textbooks use the following simple “bottleneck formula” to illustrate the calculation of process capacity: the capacity of each resource is first calculated by examining that resource in isolation; process capacity is then taken as the smallest (bottleneck) among the resource capacities. The bottleneck formula is, in fact, an approximation of the true process capacity and correctly calculates capacity only in some straightforward settings, for example, in processes where each activity requires only one resource and in processes where each resource is dedicated to only one activity. However, when activities require multiple resources simultaneously (collaboration) and when resources are capable of doing multiple activities (multitasking), the simple formula can be significantly inaccurate. Further, several commonly held managerial insights related to process capacity and least-capacity resources that emerge from the formula can be misleading. The main goal of this case is to alert students that, for processes with collaboration and multitasking, the use of the bottleneck formula brings the potential danger of reaching incorrect conclusions about capacity and what constitutes a bottleneck of a process and may eventually lead to erroneous decisions with significant financial impact, for example, investing in procuring an expensive resource without being able to realize the presumed increase in capacity. More generally, the case illustrates the principles of process capacity and bottleneck structures and clarifies some often-repeated misunderstandings on the relationship between process capacity and least-capacity resources. The case also illustrates the importance of using Gantt charts for conveniently displaying schedules of activities.

Epidemiology, Infection Prevention, Testing Data, and Clinical Outcomes of COVID-19 on Five Inpatient Psychiatric Units in a large Academic Medical Center

Inpatient psychiatric facilities can face significant challenges in containing infectious outbreaks during the COVID-19 pandemic. The main objective of this study was to characterize the epidemiology, testing data, and containment protocols of COVID-19 in a large academic medical center during the height of the COVID-19 outbreak. A retrospective cohort analysis was conducted on hospitalized individuals on five inpatient psychiatric units from March 1st to July 8th, 2020. Demographic data collected include age, race, gender, ethnicity, diagnosis, and admission status (one or multiple admissions). In addition, a Gantt chart was used to assess outbreak data and timelines for one unit. Testing data was collected for patients admitted to inpatient psychiatric units, emergency room visits, and employees. 964 individuals were hospitalized psychiatrically. The study population included ethnically diverse patients with various mental illnesses. We also describe infection prevention strategies, screening, and triage protocols utilized to safely continue patient flow during and beyond the study period with a low patient and employee infection rate. In summary, our study suggests that early implementation of triage, screening, extensive testing, and unit-specific interventions can help prevent and contain the spread of COVID-19 in inpatient psychiatric units and help facilitate safe delivery of care during a pandemic.

Use of Simulation Tools for Optimization of the Time Duration of Winter Maintenance Activities at Airports

Aviation and climate change are often associated. The effects of climate change have increasing impact on the safe operation of airports. Due to both climate and weather conditions changes, airport winter maintenance is a significantly important activity of airports, especially in areas where a harsh winter season is expected. Continuous optimization of airport winter maintenance processes is necessary. The aim of this article is to present a possible way to optimize maintenance processes using simulation tools. The team of researchers identified key factors that are necessary for the application of the optimization. The article presents a procedure designed for safe handling of one of the model situations in winter maintenance of airports. The model of simulation defines critical points in the maintenance procedures designed for maintenance optimization using the data obtained from an international airport. Based on the determination of critical points of the maintenance procedures processed using a Gantt chart, the authors analyzed the differences of the performed procedures applied in the airport. The result of applied research is the identification of the next critical points in the simulation that may potentially represent critical activities of the winter maintenance procedure and have an influence on their optimization.

HR management in private medical institutions

The article summarizes the arguments and counter-arguments within the scientific discussion on improving the HR management system in medical centers through HR policy tools. The study’s main purpose is to form proposals and focus on the prospects for the development of HR management in medical institutions. Systematization of learned treatises and approaches on the development of HR management systems showed problems in HR management’s current methods and systems. The urgency of solving this scientific problem is that the improvement of HR policy could effectively form and modernize medical organizations’ personnel management systems. The study of improving the HR management system in medical centers was carried out in the following logical sequence: considering the basics of personnel management in the private organizations; studying the methods and current trends in personnel management; analyzing the current system of HR management and personnel management on the example of medical institutions of Ukraine; developing recommendations for improving the HR policy of medical centers have been formed considering the obtained results. The methodological tools of the study were the methods of comparison, the BSC system of Kaplan and Norton, the fundamental provisions of personnel management, the calculation method and the method of data analysis, and the Gantt chart. The object of the study is the HR policy of medical institutions in Ukraine. The article presents the empirical analysis results based on the identified problems of organizing a personnel management system. The essence and features of the HR policy of medical centers were determined. In the study, the authors considered the state of medical centers’ staffing and HR management methods in health care. To investigate the organizational structure and personnel in the current situation of HR management of medical centers, the analysis of personnel and financial indicators was conducted. The findings showed the deficiencies in the personnel document management and HR management system of medical centers and the reasons for staff turnover. The comparison method, Kaplan and Norton’s BSC system, Gantt chart, calculation, and data analysis allowed identifying the ways to improve the existing HR management system in organizations.

Accelerate the Implementation Time of Kadiri University Clinic Constructions Projects Using Critical Path Method (CPM)

The efficiency of project implementation time becomes one of the efforts in optimizing the use of implementation time. CPM is one of the network methods used to determine the critical path of each implementation. This research aims to optimize Time by applying CPM methods in the Kadiri University Clinic construction project in Kediri. The project consists of 2 floors with 12 essential items of work. The implementation time of the project is planned to be complete for 134 days. The data used in this study form a project schedule (Gantt chart). From the data, analysis of the sequence of implementation using the Work Breakdown Structure (WBS) method and carried out the calculation of earliest start (ES), latest start (LS), earliest finish (EF), and latest finish (LF). Critical paths are known from slack/float calculations and are depicted in the form of network diagrams. From the analyses, it is known that the project can be complete within 71 days. The results were 63 days earlier than planned. With the use of the CPM method in project scheduling, optimal timing and critical implementation are found. So that it can be used as a reference in the performance of the project implementation.

Keep IT Together

Prior research shows that project managers tend to avoid following the optimal work plan, and that this tendency is negatively influenced by the perceived complexity of the Gantt chart. This research introduces a central factor moderating this effect: the level of communication effort required by PMs (project managers) when managing IT (information technology) team members. To test this prediction, the researchers followed an experimental approach and manipulated the level of communication effort by defining two group types, which differed in the number of team members and the geographical distance between them (together or not). Research results show that the complexity level of the Gantt chart negatively affects PMs' motivation to adopt an optimal work plan, and importantly, findings suggest that the group type (together or not) attenuates this effect. Research findings also offer practical implications for managers seeking to influence PM's behavior and attenuate the negative impact of Gantt chart complexity without changing other aspects of the work plan.

Means for organizing project activities in informatics for the development of universal educational actions of upper secondary school students

The article discusses the feasibility of organizing project activity in informatics, aimed at developing universal educational actions of upper secondary school students. The possibility of development of regulatory, cognitive and communicative universal educational actions in the context of project activity is revealed. Various means of organizational and methodological support of project activity on informatics are proposed, contributing to the development of universal educational actions of upper secondary school students. An algorithm for constructing a Gantt chart is described, and an example of upper secondary school students compiling a cyclogram of an informatics project based on this algorithm is considered. The possibility of using the Trello online resource to manage upper secondary school students in informatics project activity is demonstrated. The analysis of the formation of universal educational actions of upper secondary school students as a result of the use of organizational and methodological support of compulsory project activity in informatics is presented.

AN APPLICATION OF METAHEURISTIC OPTIMIZATION ALGORITHMS FOR SOLVING THE FLEXIBLE JOB-SHOP SCHEDULING PROBLEM

Abstract. The Flexible Job Planning (FJSP) problem is another planning and scheduling problem. It is a continuation of the classic problem of scheduling jobs, where each operation can be performed on different machines, while the processing time depends on the machine being used. FJSP is a difficult NP problem that consists of two sub-problems, scheduling problems and scheduling operations. The paper presents a model for solving FJSP based on meta-heuristic algorithms: Genetic algorithm (GA), Tabu search (TS) and Ant colony optimization (ACO). The efficiency of the approach in solving the aforementioned problem is reflected in the flexible search of space and the choice of dominant solutions. The results of the computation are graphically represented on the Gantt chart.

IT project information system for risk management of human resources

The work is devoted to the research of sources of risks of formation and management of human resources of the company and the development of a project of an information system to minimize the risks of dismissal. Existing approaches to employee incentives and programmatic decisions on the human capital accounting are described. This work analyzes the most famous modern information systems for monitoring and management of personnel. A target tree has been built to address the current problematic situation. Alternative means for the realization of the project of the information system considering the peculiarities of the scope are considered. The hierarchy of the general purpose of choosing the optimal means of implementing the information system for minimizing the risks of personnel management is presented. Using the method of analytical hierarchy, the priorities of alternatives relative to the focus are calculated. The most appropriate project implementation for such a system is to use the WordPress platform. A complex of UML diagrams was developed for the project implementation. The structure of the project in the form of WBS is given. Gantt chart, which shows in detail the schedule of information system design. To track all possible deviations of the project, the critical path of the project is calculated. The prototype information system for minimizing the risks of dismissal of workers runs on an Apache Web Server using MySQL as a database. The design was based on a suite of tools for creating WordPress sites and web applications. The project of the information system implements the policy of identification and management of risks associated with the outflow of valuable employees, describes and allows to regulate the procedure of identification and accounting of employees who are the sole owners of project knowledge. It also defines the sequence of steps that make it impossible to incur the risks associated with the outflow of staff, complicate, and/or slow down the process. The information system in the field of software development, database design, and support of existing information systems is offered.

Flexible flow shop scheduling with interval grey processing time

Purposepurpose of this paper is providing a solution for flexible flow shop scheduling problem with uncertain processing time in aeronautical composite lay-up workshop.Design/methodology/approachA flexible flow scheduling model and algorithm with interval grey processing time is established. First, according to actual needs of composite laminate shop scheduling process, interval grey number is used to represent uncertain processing time, and interval grey processing time measurement method, grey number calculation and comparison rules, grey Gantt chart, and other methods are further applied. Then a flexible flow shop scheduling model with interval grey processing time (G-FFSP) is established, and an artificial bee colony algorithm based on an adaptive neighbourhood search strategy is designed to solve the model. Finally, six examples are generated for simulation scheduling, and the efficiency and performance of the model and algorithm are evaluated by comparing the results.FindingsResults show that flexible flow shop scheduling model and algorithm with interval grey processing time can provide an optimal solution for composite lay-up shop scheduling problems and other similar flow shop scheduling problems.Social implicationsUncertain processing time is common in flexible workshop manufacturing, and manual scheduling greatly restricts the production efficiency of workshop. In this paper, combined with grey system theory, an intelligent algorithm is used to solve flexible flow shop scheduling problem to promote intelligent and efficient production of enterprises.Originality/valueThis paper applies and perfects interval grey processing time measurement method, grey number calculation and comparison rules, grey Gantt chart and other methods. A flexible flow shop scheduling model with interval grey processing time is established, and an artificial bee colony algorithm with an adaptive domain search strategy is designed. It provides a comprehensive solution for flexible flow shop scheduling with uncertain processing time.

Gesture Controlled Robotic Hand Using RF Unit and Accelerometer

In the race of man v/s machine, automation comes as a companion of man and machine. Taking the technology to the next level from the mobile driven world to an automation driven world, will increase manufacturers their production rates, productivity and efficiency with materials, product quality, and worker safety. From ancient times the ingenuity and the brain power human beings have astonished researchers with engineering and mechanical marvels like the wheel, bow and arrow, cross bows, etc. What started from the wheel did not end there but evolved into the complex mechatronics systems that we see around us today. The robotics is one such human marvel that will be one-day equal human beings themselves. The robots thus have far more use in the daily life than any other systems. The robotics and automation is a rising piece of technology which could lessen the loads of work and solve the problems exponentially. As robotics is finding its place on every sector in this globe, the aim this project is to introduce robotics in the field of industry. The title of the system is ‘Gesture controlled robotic arm’. The aim of the system is to provide safety and to increase productivity in our industries. The research project should be designed in such a way that it should occupy minimum space, should possess high maneuverability and high agility. The project in discussion is types of robots which needs minimum space and are proved to be highly maneuverable and highly agile. The robot contains two main units, one is the robotic arm and second is the data glove with accelerometer using a RF controller. The robotic arm unit is responsible for the hand functions of the whole structure of the robot. The data glove is responsible for the input feedback to the robotic arm. The robotic unit will be controlled by an Arduino platform to improve its stability. The angle tilt will be measured using ADXL335 sensor. The ADXL335 uses angle, tilt and yaw values with Arduino for data transfer. Through advanced primary and secondary research techniques, system implementation hurdles and potential risks involved in developing such a system are identified. The project is fully planned using advanced project management techniques like PERT chart and Gantt chart in order to identify the critical activities and the timeline related with it.

Hepatitis A outbreak among MSM in Berlin due to low vaccination coverage: Epidemiology, management, and successful interventions

ObjectivesTo describe the characteristics of a large hepatitis A virus (HAV) outbreak among men who have sex with men (MSM) in Berlin and to assess the impact of measures implemented. MethodsCases of laboratory-confirmed, symptomatic HAV infection notified in Berlin, Germany between August 2016 and February 2018 were analysed using routine and enhanced surveillance data including genotyping results. Several studies involving different groups of participants were conducted to further investigate the outbreak, including surveys on knowledge and practices of HAV vaccination among physicians and vaccination coverage and determinants of vaccination status among MSM. The measures implemented were categorized by target group in a Gantt chart. To assess their impact, health insurance data on HAV vaccination uptake were analysed, comparing Berlin and other federal states. ResultsDuring the outbreak period, a total of 222 cases were reported (of which 91 were sequence-confirmed), with a peak in case numbers in January 2017. Physicians were aware of the existing vaccination recommendations, but vaccination coverage among 756 MSM was low, with 32.7% being completely vaccinated and 17.3% being incompletely vaccinated before 2017. HAV vaccination before 2017 was associated with being born in Germany (odds ratio 2.36) and HIV-positive (odds ratio 1.80). HAV monovalent vaccination uptake increased by 164% from 2016 to 2017 among males in Berlin, compared to 7% in other federal states. ConclusionsMultiple measures targeting the MSM community, physicians, and public health to increase HAV vaccination uptake were successfully implemented. To prevent future HAV outbreaks, we recommend monitoring vaccination coverage among MSM, promoting awareness of existing recommendations among physicians, and ensuring access for foreign-born and young MSM.

Опыт визуального моделирования в проектировании учебного процесса

The paper discusses author’s experience in designing of the conception of the educational process in direction of training (speciality) «Sociology». As an example, the author considers the design of the educational process for the educational program «Information and analytical support for social management». The author uses visual modeling tools to solve this problem. The author considers visual models of the educational process. These visual models is specific modifications of Gantt chart.