Stages Of System Design Research Articles

ANALISIS PEMASARAN DAN DESAIN SISTEM PERBAIKAN KUALITAS TEPUNG TALAS BENENG

Problems faced in the beneng taro flour production system is quality and quantity. Therefore, it is necessary to analyze and design the improvement of the quality of beneng taro flour. The purpose of this paper is to analyze and design a quality improvement model in taro beneng. The system design stage begins with analyzed the entities of beneng taro flour production, analyzed the market, determined the quality performance indicators of the beneng taro flour, evaluated the quality, and improvements designed of the beneng taro flour. In the needs analysis, it produces input, output, stakeholder roles, control, and resources. The quality performance indicators is done by listing the quality attributes that determine quality performance. In this model, there are 8 quality dimensions and 16 of quality attributes. Quality evaluation is then carried out by comparing product performance and consumer expectations. Design improvement is done by analyzing the results of quality evaluation. Based on the analysis, there are 6 product attributes that need improvement including texture, color, suitability of product information, price suitability, ease of access and product popularity.

ISO 9126 UNTUK PENGUJIAN GAME EDUKASI MEMBUANG SAMPAH BERBASIS ANDROID

Games are applications that are familiar to people from all walks of life. Efforts to increase the efficiency of providing applications that contain educational elements require a variety of alternatives and new innovations in programming to be applied as a tool to simplify the learning process. This study aims to create a game design called the game "Throw your trash" by inserting educational elements about how to dispose of garbage in its place and introducing the types of waste. And the sample used is elementary school students, because of their interest in the theoretical learning process, considering that children prefer to play games. The methodology used is starting from system analysis, design and implementation stages, and testing using ISO 9126.The results of this educational game to throw garbage show that the game application based on the aspect obtained a percentage of 95% of the Functionality test and the results of the analysis of usability testing obtained a percentage of 81.89% Kata Kunci: education, games, testing, android, ISO 9126

CREATION OF WEBSITE-BASED ELECTRONIC ARCHIVES AT THE CLASS II NON-TPI BLITAR IMMIGRATION OFFICE

Information is important to facilitate administrative and bureaucratic work in the era of increasingly rapid technological development. Information from all recorded activities of institutions and agencies is stored in archive form. Arranging or managing the archives of applicants for passports and residence permits at the Immigration Office is the task of the Information Technology Subsection. It is known that currently Kantor Imigrasi Kelas II Non TPI Blitar is still using the conventional filing system, where for archiving it uses more paper, so there are lots of piles of archive files for passport and residence permit applicants that fill the archive room. The purpose of this research is to create a website- based Electronic Archive to reduce the risk of file accumulation in the archive room of Kantor Imigrasi Kelas II Non TPI Blitar. This study uses the System Development Life Cycle (SDLC) application development method which is a way of developing a software that provides the possibility to create a structured and systematic system (sequentially) starting at the stages of requirements analysis, system design, implementation, testing, development, and maintenance. The results of this research application "Arsip Elektronik Berbasis Website pada Kantor Imigrasi Kelas II Non TPI Blitar" has been successfully created using the SDLC design method. The existence of digitizing the archive files of applicants for passports and residence permits, will facilitate the archive search process and save the use of archive space at Kantor Imigrasi Kelas II Non TPI Blitar.

Pencarian Data Barang Produk Atribut Sekolah Menggunakan Algoritma Binary Search

ABSTRACTTechnology and information that is growing and sophisticated must be balanced according to the needs. For it was made the application of binary algorithms for the search data goods production of school attributes. Many methods in search with the goal of making it easier to search, e.g. search data of production items of school attributes with binary search method. Convection in the search of production goods using the manual way by looking for the archive data written in the notebook, the purpose of this research is to create a data retrieval system of goods that will be applied as a data retrieval tool of goods, as well as change the system manual to the computing system. In this research using Binary Search algorithm. Binary search algorithm is a technique applied only on the sorted element (sorted). This research using method of binary search algorithm with analysis stage, system design, coding/construction, testing, and implementation. In the analysis stage, the collection of data conducted is observation and literature study. At the system design stage using Unified Modelling Language (UML) include the use case diagram, activity diagram, Sequence diagram, and Diagram class. At the construction stage using the Java programming language using Netbeans and MySQL Server tools while the implementation of this system is the application of data retrieval of goods. To know the eligibility of a system, it is necessary to test against the search time of 210 data each time duration, 0.0004 seconds, 0.0005 seconds, 0.0006 seconds, 0.0007 seconds, 0.0008 seconds, 0.0009 seconds, 0.0010 seconds, 0.0012 seconds, 0.0014 seconds, 0.00117 seconds. The final result of this study is the application of search for production goods with Binary Search Algorithm Method.

Optimal parametric design of delayless subband active noise control system based on genetic algorithm optimization

Active noise control systems are generally application-specific, and an appropriate algorithm with an optimal configuration is desirable in the first stage of active noise control system design and deployment. This study presents a design of the subband active noise control system with optimal parameters for a practical broadband active noise control. Although the delayless subband active noise control has gained wide attention for broadband noise cancellation, an optimal design remains a challenge because of the complex interplay between multiple factors such as spectral leakage, delay and weight stacking distortion subject to a number of configurable parameters, and weight stacking method. The configurable parameters can hardly be optimized independently because the active noise control performance depends on the combined configuration. A simple near black box active noise control algorithm optimization model is thus established by incorporating the genetic algorithm optimization into the parametric design of the delayless subband algorithm. The automated process does not require an understanding of the performance characteristics for different parameters. The significance of applying the automated genetic algorithm optimization to the complex multiparameter nonlinear active noise control design is revealed by numerical simulations, particularly for the multichannel low-frequency broadband active noise control system configured with the delayless subband algorithms. This provides a way for the optimal parametric design of subband active noise control before being used in a practical complex scenario.

THE MODELING OF INFORMATION SECURITY SYSTEM DESIGN PROCESSES IN STATE INFORMATION SYSTEMS

The relevance and necessity of implementing measures to protect information in state information systems today is obvious both from the point of view of existing legislation, and from the point of view of the objective presence of a large number of threats of a very different nature. Protective measures should take into account such factors as the growth of the volume of processed information, the use of various data processing technologies, the multi-user nature of access to information resources, and the complexity of the modes of operation of technical means [Schneier, 2003]. Thus, ensuring information security is a complex of interrelated business processes of an organizational, legal and technical nature. The complexity of the processes of implementing security systems makes it necessary to perform the planning stage of this process, which is closely related to the need to develop a domain model. This determines the relevance of writing this work. The purpose of this article is to develop a set of models that describe the features of organizational, legal and technical processes that arise at the design stages of information security systems in state information systems. The methodological basis for writing the work is the normative legal acts of the FSTEC of Russia. A comparative analysis of possible methods of modeling the described subject area allowed us to determine the tools used. To describe the ongoing processes in the design of the information security system, the SADT functional graphical modeling methodology was used. Mathematical modeling methods were used to model the process of rational choice of information security tools. The result of the research presented in this paper is a set of models that describes the processes characteristic of the design stage of the information security system in state information systems.

Web Based e-Posyandu at Posyandu Teratai Putih Bahalayung Village using CodeIgniter Framework

Posyandu, which stands for Integrated Health Family Planning Service Post, is a basic health activity organized for people who are assisted by health workers, one of which is the Posyandu Teratai Putih Bahalayung Village. There are several obstacles in this manual system, including Posyandu cadres who often experience difficulties in the data search process, this is because these cadres may not remember the location of the data being searched for or do not understand the data written by other cadres. The system development method used is the Waterfall methodology, from the requirements analysis stage to system testing. For system requirements analysis, the data taken is posyandu data from 2019. For the system design stage, using ERD and DFD, namely Context Diagram and DFD Level 1. For the implementation stage of the system using the Codeigniter framework, programming languages ??PHP, HTML, and Javascript, and the MySQL query language. And the last stage for testing the system uses the Black Box Testing technique.

Development of a design based remanufacturability index for automobile systems

The growing concern over environmental protection is prompting automobile manufacturers to develop products with better End-of-Life performance. Product remanufacturability is considered as an End-of-Life performance booster. Remanufacturability, that is, the easiness for remanufacturing of products depends on the technical, environmental, and economic feasibilities. The technical feasibility depends on the product design attributes that support remanufacturability. These design attributes are comprised of several sub-attributes. Moreover, the attributes are interrelated with each other. This paper develops a remanufacturability index for automobile systems based on the design attributes that affect the remanufacturability. A structural methodology of graph theory and matrix approach is applied for developing the remanufacturability index. The design attributes and their interrelations with due consideration of their structure is modelled through the graph theory. The remanufacturability directed graph (digraph) is defined; the nodes of this represent the remanufacturability enhancing design attributes, while the edges represent their degrees of interrelationships. The equivalent matrix of the digraph forms a remanufacturability function which leads to the evaluation of remanufacturability index. A higher value of the remanufacturability index indicates that the automobile system has high potential for being remanufactured. The methodology can be applied during the design stage of automobile systems to evaluate the remanufacturability that will enhance the End-of-Life performance. The observations would be helpful to automobile system designers in determining the extent to which the system can be remanufactured and in identifying the specific attributes that can be improved to enhance remanufacturability.

Acceleration Displacement Response Spectra for Design of Seismic Isolation Systems in Turkey

In this study, base shear and inelastic displacement limits of seismic isolation systems are presented through acceleration-displacement response spectra considering the ground motion and design provisions of the Turkish Building Seismic Design Code. A series of nonlinear response history analyses are performed using a combination of eight site-specific design spectra, six isolation systems having six different periods and five yield levels. As a result, eight spectra presented herein can be used for the preliminary design stage of seismic isolation systems in Turkey.

Structural Design According to Constructal Theory in Architecture

Constructal theory plays a major role in the conceptual design stage of the structural system in architecture. It provides a conceptual framework for predicting the form depending on natural systems to model those systems geometrically according to the constructal law that works in two directions: the first is towards predicting the general form of the structural system, and the second is the physical application of the law in the process of detailed design of the parts of the system. The aim of this paper is to determine the mechanism adopted in the structural design according to the constructal theory, assuming that the structural design according to the constructal theory achieves high structural efficiency. The paper depends in its theoretical framework on the clarification of the concepts of constructal theory, the mechanism of constructal law work, and then the verification of its compliance with the applicable rules to achieve high efficiency. The paper concludes a set of indicators that can be adopted in assessing the level of structural efficiency - at the level of form and material - of architecturally designed structures according to the constructal theory. The research concluded that constructal theory contributes significantly to research on the origins of living systems, and to employ them in the process of creating the architectural form on one hand, and enhancing the structural efficiency of the structural performance on the other hand.

Computer simulation of processes of changing the reliability characteristics of systems with recoverable and non-recoverable elements based on the Simulink Dynamic Simulation Package

The paper presents a methodology and software package of mathematical and computer simulation of changes in the reliability characteristics and integrated indicators of system reliability during operation using Simulink. The software package is an application (Toolbox) to the standard Simulink package. The theoretical basis of the proposed algorithms is the method of analyzing structural diagrams of system reliability. The author proposes an original diagram of building a mathematical model of reliability with both non-recoverable and recoverable elements. The diagram involves a broad interpretation of the concepts of a “recoverable element” and a “recoverable element failure”. This approach found reflection in the wide range of proposed simulation tools. The advantage of the proposed products is the unification and relative ease of building models of systems of a sufficiently high level of complexity, and a wide range of intermediate simulation results available for analysis. The methodology and software package can be used during the system design stage to predict their reliability performance. The paper presents some simulation results.

Business intelligence as a decision support system tool

The relevance of the topic considered in the article is to solve the problems of designing management decision support systems for enterprises based on business analytics technology. The research purpose is to analyze the applied methodologies during the design stage of the enterprise information system, to develop principles for using management decision support systems based on business intelligence. The problem statement is to analyze the technologies available on the market, which deal with business analyst systems, their potential use for decision support systems, and to identify the main stages of business analyst for enterprises. Business intelligence (BI) is information that can be obtained from data contained in the operational systems of a firm, enterprise, corporation, or from external sources. The BI can help the management of a company make the best decision in the chosen sphere of human activity faster, and, consequently, win the competition in the market for goods and services. A decision support system (DSS) which uses business intelligence, is an automated structure designed to assist professionals in making decisions in a complex environment and to objectively analyze a subject area. The decision support system is the result of the integration of management information systems and database management systems (DBMS). The internal development of BI is more cost-effective. The methods used are Structured Analysis and Design Technique and Object-oriented methods. The results of the research: the analysis of the possibilities was conducted and recommendations relating to the use of BI within DSS were given. Competition between BI software in business analysts reduces the cost of products created making them accessible to end-users – producers, traders and corporations.

THE INFORMATION SYSTEM DEVELOPMENT FOR MANAGING THE BUILDING STRUCTURES DEPARTMENT

An automated information management system for the higher educational institution department is proposed. To implement the ENQA recommendations at the Computer and Information Technologies Department of the National University «Yuri Kondratyuk Poltava Polytechnic», the task was to create an information system for the unit. The information system will optimize the training procedure, expand the possibilities for analyzing the results, ensure transparency and objectivity in the students training and qualification assessment, which. As a result, will contribute to increasing the citizens' confidence level in higher education. The information system design stages are considered, in which the main technical task sections were drawn up. The inforation system architecture, the scenario for integrating the system with external software products, initial data sources and options for the initial system content and the access user and administration rights concept and powers have been developed. The department automated information management system functional requirements have been formed. At the stage of information systems designing the main sections of requirements specification have been designed. Being realised, AIS structure corresponds to well-known management control pyramid of the vertical labor division. An information system division has been created to optimize the process of learning, enhance the ability to analyze results, ensure transparency and objectivity in the process of training and qualification assessment of students, as a result, help increase public confidence in higher education

On reliability analysis of a load-sharing k-out-of-n: G system with interacting Markov subsystems

Dependency plays a key role in the design stage of multi-component manufacturing systems. To capture stochastic dependencies between subsystems, this paper considers a load-sharing -out-of-: G system which contains non-identical multi-state subsystems. The state evolution of each subsystem follows a continuous-time homogeneous Markov chain. Most existing research on -out-of-: G systems focuses on independent subsystems. However, a subsystem failure usually leads to a higher failure rate for each surviving subsystem within the system. This paper aims to study the interaction among subsystems and analyse the system reliability performance. The transition rate matrix for a given subsystem is assumed to depend on the total number of the remaining surviving subsystems, which can be represented as the sum of a baseline transition rate matrix and a stochastic dependency matrix. This paper proves that the transition rate matrix of the system is the generalised Kronecker sum of transition rate matrices of subsystems, and develops an explicit method to calculate the generalised Kronecker sum. The theory of aggregated stochastic processes is employed to obtain closed-form formulas for reliability indexes. A case study of multi-engine aircraft systems is provided where numerical examples are given to illustrate the developed model and obtained results.

RANCANG BANGUN APLIKASI E-SERTIFIKAT BERBASIS WEB MENGGUNAKAN METODE PENGEMBANGAN WATERFALL

Certification is a determination given by a professional organization to someone to show that the person has competence, is able to do a specific job or task. Quality Assurance and Learning Development Institute Universitas Negeri Padang (LP3M UNP) currently still issues paper-based certificates manually for each training activity. Issuance of certificates manually turned out to be quite time consuming and inefficient. Then the absence of a verification system that can check the authenticity and ownership of certificates can provide opportunities for certificate forgery. So, it is very important to design and build a web-based electronic certificate application (e-certificate) that is able to generate certificates online and be able to verify the authenticity and ownership of the electronic certificates. This study uses a Research and Development (R&D) approach. This type of development method uses the waterfall approach. At the system design stage using the Unified Modeling Language (UML), and for the database using MySQL. The results of this study are web-based e-certificate applications that are designed successfully to support the process of generating and verifying the authenticity and ownership of electronic certificates online. Based on the results of testing the system with the black box method also shows that all the functionality of the e-certificate application that is designed to run very well and in accordance with user needs.

A system level approach to estimate maximum load steps that can be applied on a fuel cell powered marine DC system

This paper presents a system level approach to estimate the maximum load steps on a hydrogen fuel cell powered marine system. In the proposed approach, a model has been developed to predict the system distribution voltage drop due to sudden load changes applied on the system. The estimated voltage drop is used as a metric to determine if a system can sustain the applied load change. Such technique is beneficial for system engineers in the early stage of marine system design and dimensioning. Additionally, the model can be used by a power management system to coordinate starting and stopping of fuel cells for improved system performance. In this work, the proposed approach is validated using a real-time hardware-in-loop simulation platform and it is demonstrated that the proposed approach is accurate within 1.2%.

A graph theory approach to predicting functional failure propagation during conceptual systems design

AbstractAn open area of research for complex, cyber‐physical systems is how to adequately support decision making using reliability and failure data early in the systems engineering process. Having meaningful reliability and failure data available early offers information to decision makers at a point in the design process where decisions have a high impact to cost ratio. When applied to conceptual system design, widely used methods such as probabilistic risk analysis (PRA) and failure modes effects and criticality analysis (FMECA) are limited by the availability of data and often rely on detailed representations of the system. Further, existing methods for system reliability and failure methods have not addressed failure propagation in conceptual system design prior to selecting candidate architectures. Consideration given to failure propagation primarily focuses on the basic representation where failures propagate forward. In order to address the shortcomings of existing reliability and failure methods, this paper presents the function failure propagation potential methodology (FFPPM) to formalize the types of failure propagation and quantify failure propagation potential for complex, cyber‐physical systems during the conceptual stage of system design. Graph theory is leveraged to model and quantify the connectedness of the functional block diagram (FBD) to develop the metrics used in FFPPM. The FFPPM metrics include (i) the summation of the reachability matrix, (ii) the summation of the number of paths between nodes (i.e., functions) i and j for all i and j, and (iii) the degree and degree distribution. In plain English, these metrics quantify the reachability between functions in the graph, the number of paths between functions, and the connectedness of each node. The FFPPM metrics can then be used to make candidate architecture selection decisions and be used as early indicators for risk. The unique contribution of this research is to quantify failure propagation potential during conceptual system design of complex, cyber‐physical systems prior to selecting candidate architectures. FFPPM has been demonstrated using the example of an emergency core cooling system (ECCS) system in a pressurized water reactor (PWR).

A Simple Power Source Modeling and Experimental Investigation of a Spacecraft for EMC Applications

Simplified modeling of a spacecraft power system is proposed to predict the conducted electromagnetic compatibility (EMC) environment. A key element of the spacecraft conducted environment is the electrical power subsystem, which corresponds to the power source. Since the impedance of the power source has a significant effect on conducted interference, the assessment of power bus impedance is essential to control and manage spacecraft EMC. In the proposed model, all components inside the power system were modeled as simple equivalent circuits with lumped elements. The advantage is that it simplifies the complex power system so that its impedance can be quickly obtained at the early stage of spacecraft system design and development. The model is validated by comparing the calculated results with experimental data. The comparison results between simulation and experiment showed good agreements.

CRITERIA FOR EVALUATION OF EFFICIENCY OF REMOTE ADMINISTRATION SOFTWARE

The work is devoted to solving the problem of evaluating the effectiveness of remote administration software (PZVA) according to certain criteria. The concept of efficiency of PZVA is revealed in the work, criteria of efficiency of software, actions and means for their development and use are defined. Efficiency means the ability of software to provide appropriateper formance depending on the number of computingre sources used in the established conditions. Resources may in clude other software, software and hardware configurationof the system and materials. It is noted that efficiency includes a number of characteristics such as time behavior, resource use, and efficiency matching. The advantages of the above-mentioned criteria for evaluating the ELV and their disadvantages that reduce the objectivity of the evaluation of the effectiveness of the software are identified. Another important criterion is also analyzed - the security of the remote administration software. Due to the ever-increasing number of attacks on local area networks, new vulnerabilities in the software are constantly being discovered and, as a result, a new type of attack is emerging. The risks associated with insufficient connection security are considered. In addition, a huge disadvantage of using remote access programs is the defection of the perimeter of the local network. And in this regard, with the incompetent use of such software there is a risk of attackers using remote access programs. Thus, the criteria for the effectiveness of remote administration software are defined in the paper. This will allow to effectively evaluate remote administration software according to certain criteria, increase their quality and reliability, at the stage of system design and development to select software.

Rancang Bangun Mobile Commerce di Lamandau Store Berbasis Android berdasarkan User Centered Design (UCD)

Lamandau Store is a place for marketing and selling products that produced by Micro, Small and Medium Entrepreneurs named Usaha Mikro Kecil Menengah (UMKM) and Small Medium Industry products or Industri Kecil Menengah (IKM) in Lamandau Regency. The marketing and sales system at Lamandau Store has been manual which is costumers come to the store. This has not attracted enough consumers, resulting in lower levels of marketing and sales. This study aims to produce an Android-based mobile commerce application that can be used to support the marketing and sales process at the Lamandau Store. The research was conducted in several stages, namely the Data Collection Stage, the System Design Stage and the Report Writing Stage. The system design stage was developed based on the User Centered Design (UCD) method. The results show that a mobile commerce application is in accordance with user needs and has been presented as a new innovation at the Lamandau Store.