System Functional Requirements Research Articles

Formulas and Guidelines for Deriving Functional System Requirements from a Systems Engineering Model

AbstractWithin this paper, we discuss a specific approach to system‐level modeling using activities, with the goal of writing English‐language requirements for the System of Interest (SOI), and then using formulas which interact with the model to proceduralize the authorship process. This overall approach makes it possible for most technical participants in a program to do most of their development work in a collaborative modeling environment, spending most of their time dealing with technical issues rather than language issues, while implementing a rapid translation to English‐language functional requirements toward the end of the process which may eventually be automated.

Design Considerations for Macroencapsulation Devices for Stem Cell Derived Islets for the Treatment of Type 1 Diabetes.

Stem cell derived insulin producing cells or islets have shown promise in reversing Type 1 Diabetes (T1D), yet successful transplantation currently necessitates long‐term modulation with immunosuppressant drugs. An alternative approach to avoiding this immune response is to utilize an islet macroencapsulation device, where islets are incorporated into a selectively permeable membrane that can protect the transplanted cells from acute host response, whilst enabling delivery of insulin. These macroencapsulation systems have to meet a number of stringent and challenging design criteria in order to achieve the ultimate goal of reversing T1D. In this progress report, the design considerations and functional requirements of macroencapsulation systems are reviewed, specifically for stem‐cell derived islets (SC‐islets), highlighting distinct design parameters. Additionally, a perspective on the future for macroencapsulation systems is given, and how incorporating continuous sensing and closed‐loop feedback can be transformative in advancing toward an autonomous biohybrid artificial pancreas.

Research on Power Line Carrier Communication Based on HVDC

This paper mainly studies the control of LED lamps under the condition of centralized DC power supply by power carrier mode, and modifies the mature power carrier scheme in AC system to adapt to the DC system environment and realize reliable communication in DC system. Through the analysis of system functional requirements and the comparison of existing communication technologies, the overall architecture of DC tunnel lighting system is proposed. The system adopts two-tier structure, including monitoring center, communication controller and HVDC tunnel lighting control terminal. This system realizes the master-slave monitoring of the communication controller to the control terminal of HVDC tunnel lamps, and puts forward the modification scheme to the conventional power carrier scheme, and verifies the improved power carrier scheme of DC system through the Qijiashan tunnel lighting project.

Design of Enterprise Management System Based on Edge Computing Architecture

In the current enterprise management system, the coupling relationship between enterprise management and operation and maintenance database is not considered, which leads to many system vulnerabilities, slow running speed, and long response time. An enterprise management system based on edge computing architecture is designed. According to the characteristics of mobile edge computing, we design the architecture of the edge computing platform, integrate the MEC virtualization infrastructure layer, MEC platform layer, and MEC application layer, construct the edge computing model, reflect the coupling relationship between enterprise management and operation and maintenance database, calculate the delay vector of the enterprise management server, and complete the parameter calculation of enterprise management and operation and maintenance system. This paper analyzes the feasibility, objectives, and users and functional requirements of the enterprise management system, designs the functional structure of the system, realizes the design of the public module, function menu module, and login module, adopts the SQL database management system, and designs the database and data table, so as to realize the design of the enterprise management system based on edge computing architecture. Experimental results show that the proposed method has fewer system vulnerabilities and can effectively speed up the system operation speed and shorten the system response time.

Research on architecture design of UAV PHM system

According to the application requirements of state prediction and health management (PHM) technology in the field of UAV, this paper analyzes the functional requirements of UAV PHM system by referring to the research results and application experience of PHM technology at home and abroad and combining with the current situation of UAV support in China. Furthermore, this paper designs the architecture of UAV PHM system and introduces the workflow of the system in detail, which provides guidance and reference for the improvement of UAV comprehensive support level.

Approach to system functional requirements extraction and methods for its implementation based on the design of user activities in the interface using architectural schemes

The existing approach to requirements extraction is that the requirements are formed by the system developer through direct interaction with the customer using a number of methods (for example, interviewing; prototyping; analysis of use cases; user stories; seminars, etc.). In this case, most often the requirements are formed by the developer himself, taking into account the opinion of the customer’s representative. The disadvantage of the existing approach is the problem of loss of knowledge transferred from the customer’s representatives to the developer, which results in the failure of projects, which is recorded by the existing statistics. As statistical studies show, more than half of projects for the creation of information systems (IS) are failures or require changes (in terms of budget, time and customer satisfaction). In modern research in the field of__ design and development of information systems, there is a tendency to involve the end user (customer) in the design process. To develop this idea, an approach is proposed to involve the user in the process of extracting requirements, where the developer will no longer be the person forming the requirements. The main idea of the approach is to develop special tools that allow you to independently transform the customer’s natural language into such a form of representation of the model of the process of solving professional problems, from which an interface will be built, which will allow extracting functional requirements from the unity (process model and interface).

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

Supporting resilient conceptual design using functional decomposition and conflict resolution

Concept generation plays a critical role in product design especially in the early design phase when functional requirements are either uncertain or partially known. To cope with the uncertainty imposed by the varying work environment, resilient design has often been called upon to leverage system capacity from the perspective of functional requirements. While the resilient design has been advanced recently, how to design a resilient product structure so to accommodate more functional requirements at the conceptual design phase remains challenging. To tackle this issue, we propose a methodology to support resilient conceptual design using functional decomposition and conflict resolution. To reduce the impact imposed by potential issues and uncertain environments, the overall system functional requirements are defined based on five principles of resilient design. The redundant conceptual scheme that meets functional requirements is given resilience through functional decomposition and conflict resolution. A case study of the conceptual design of a hard rock coring structure present to demonstrate the feasibility of the proposed approach. The results yielded have suggested that the proposed approach can not only support resilient conceptual design, but also leverage design reliability and robustness under uncertainty, especially in terms of varying work environments.

RAPID: a knowledge-based assistant for designing web APIs

With the rise in initiatives such as software ecosystems and Internet of Things (IoT), developing web Application Programming Interfaces (web APIs) has become an increasingly common practice. One main concern in developing web APIs is that they expose back-end systems and data toward clients. This exposure threatens critical non-functional requirements, such as the security of back-end systems, the performance of provided services, and the privacy of communications with clients. Although dealing with non-functional requirements during software design has been long studied, there is still no framework to specifically assist software developers in addressing these requirements in web APIs. In this paper, we introduce Rational API Designer (RAPID), an open-source assistant that advises on designing non-functional requirements in the architecture of web APIs. We have equipped RAPID with a broad range of expert knowledge about API design, systematically collected and extracted from the literature. The API design knowledge has been encoded as a set of 156 rules using the Non-Functional Requirements (NFR) multi-valued logic, a formal framework commonly used to describe non-functional and functional requirements of software systems. RAPID uses the encoded knowledge in a stepwise inference procedure to arrive from a given requirement, to a set of design alternatives to a final recommendation for a given API design specification. Seven well-experienced software engineers have blindly evaluated the accuracy of RAPID’s consultations over seven different cases of web API design and on providing design guidelines for thirty design questions. The results of the evaluation show that RAPID’s recommendations meet acceptable standards of the majority of the evaluators 73.3% of the time. Moreover, analysis of the evaluators’ comments suggests that more than one-third of the unacceptable ratings (33.8%) given to RAPID’s answers are due to valid but incomplete design guidelines. We thus expect that the accuracy of the consultations will increase as RAPID’s knowledge of API design is extended and refined.

Research on the Application of Feature Modeling of Prefabricated Building Components Based on BIM

Building industrialization is a new trend in the development of today’s construction industry, and prefabricated buildings have gradually become a hot spot in the construction industry. Prefabricated components are the core of prefabricated building management. The key points of prefabricated component management include component design, supply, installation, and operation and maintenance. BIM takes the whole life cycle of the building as the main line, links all links of the building through information, and realizes the integration of the whole life cycle information model of prefabricated components, which can solve the problem of backward production and management in the current construction industry. This paper proposes the realization method of the characteristic modeling system of prefabricated components. Based on the research on the design, production, construction and operation of prefabricated components, the functional requirements of parametric modeling and production management systems are analyzed, and the modular concept is applied. Divide the system into different functional modules and conduct research.

Implementation of Electronic Health Record as a Clinical Information Tool to Improve Gastric Cancer Care

Aim: According to the high prevalence of gastric cancer in Iran, this study aimed to develop a gastric cancer electronic health record (EHR) to improve outpatient gastric cancer care. Method: This study represented the stepwise process used to develop a web-based gastric cancer EHR to overcome the documentation problems and cancer care complications. These iterative phases included determining the required minimum data sets (MDS), designing, developing and implementation, and usability evaluation. The system functional and non-functional requirements were determined using needs assessment. The MDSs were identified through consensus by a multidisciplinary expert panel. Finally, the web-based system was implemented in PHP language. Results: Initially, the required datasets were verified by experts. Later, an EHR-based gastric cancer system was implemented successfully to support outpatient cancer care. Based on the analysis, the functional requirements and main modules of the system were specified. The designed system reached an acceptable level of usability and performance. Conclusion: The system was successfully implemented in the gastric cancer clinic. Implementation of an electronic health record system can not only provide ease of access to clinical information, but also improve the quality of complicated cancer care.

Design of Human-Computer Interaction System of Electro-hydraulic Hitch for Hillside Tractors

In view of the complex terrain, low level of mechanization and intelligence in hilly region, a human-computer interaction system was designed for electro-hydraulic hitch control system of tractors in hilly region. According to the actual functional requirements of electro-hydraulic hitch control system of tractors in hilly areas, human-computer interaction interface was designed in flash environment, and CAN communication module in Human-computer interaction system was designed in Flash Develop environment. Finally, a hardware test platform of the human-computer interaction system was built in the room for laboratory tests. The results showed that the human-computer interaction system can meet the working requirements of the electro-hydraulic hitch control system of tractors in hilly areas.

An implementable architecture of inland autonomous waterway transportation system

Abstract Architecture design is one of the critical issues in system development and implementation. According to the characteristics and functional requirements of the inland waterway transportation system, we have visualized the application scenarios of the Autonomous Waterway Transportation System (AWTS) and constructed the architecture of inland-Autonomous Waterborne Transportation System (i-AWTS) in this paper.Autonomous Waterborne Transportation System (AWTS) comprises intelligent ships, digital transportation infrastructure, and intelligent operation organizations, has the ability of self-perceiving, self-interacting, self-learning and self-executing, and can independently coordinate to realize the function of waterway transportation system.For architecture design,first of all, the logical architecture of the i-AWTS is proposed, the system is logically layered, and the logical relationship of system function realization is designed hierarchically. Then, the organizational architecture of the i-AWTS is proposed. By designing the system information processing process and allocating system resources, the collaborative organization of information and computing, decision-making control, and application services of the system in the cloud-side, shore-side, and ship-side is realized. Finally, The physical architecture of the system is proposed, and the system functions and organizational processes are physically mapped to the relationship between the system objects. Continuous, it realizes the autonomous operation of traffic objects with different levels of autonomy in the system. The i-AWTS provides a new way of river traffic organization and explores its system architecture, which provides ideas for the system construction, organization, and implementation of the i-AWTS.

Optimized Design of Multilines Center of Subway AFC System via Distributed File System and Bayesian Network Model

Automatic fare collection system (AFCS) is a modern, automatic, networked toll collection system for rail transit ticket sales, collection, billing, charging, statistics, sorting, and management. To realize the subway transit networking operation, this paper designs the subway AFCS based on a distributed file system (DFS), namely, Gluster File System (GlusterFS). Firstly, the multiline center (MLC) in the subway AFCS is designed to analyze the status and current situation of distributed file processing in subway MLC system; secondly, the relevant technical theories are summarized, the Bayesian Network (BN) theoretical model and DFS are explored, and the principles of four DFS are comparatively analyzed; thirdly, the architecture and cluster mode of GlusterFS is expounded, and then based on GlusterFS, the architecture of subway AFCS is discussed. This paper presents several innovation points: first, the subway AFCS is designed based on GlusterFS by analyzing and aiming at the functional requirements, performance requirements, and safety requirements of the MLC subway system; second, the safety risk analysis (SRA) of AFCS is conducted from six security requirements, and a Web scanning system is designed to ensure the system data security. Finally, the design scheme is used to analyze the subway passenger flow and power consumption. The results demonstrate that the design scheme can competently adapt to three different application scenarios. Through comparison of two deployment modes of the Web scanning system, the data security Web scanning system can ensure the safe operation of the AFCS. Furthermore, the statistical analysis of subway passenger flow and power supply data shows that the proposed scheme can support the smooth operation of the subway system, which has significant practical value.

Design and implementation of efficient Learning platform based on SpringBoot Framework

With the development of Internet technology, the demand for people's information exchange is getting higher and higher, and the traditional way of communication can no longer meet the needs of students. In order to improve the efficiency of information exchange, this paper uses a progressive framework, such as SpringBoot and Vue framework, these frameworks are easy to develop and maintain. According to these technologies, this paper designs a learning exchange community system for college students to learn and communicate. First of all, we analyze the research background and research status of learning community. Then, we analyzed the requirements of the system, including system function, performance and security requirements, and carried out the overall design of the system. The whole system is divided into several modules for development, and the specific module content is designed in detail, and the corresponding system functions are realized by using development tools. Finally, we use the black box to test the function, performance and security of the system.

The Design of Remote Control System Based on the Embedded Web Server

Abstract In order to expedite the development of the control network, according to the newest fruition of the internet, the hardware and software of the system is designed. Since the resource of the sever in embedded remote control system is limited, an approach is presented which use CGI and XML technology to realize remote monitoring computer and embedded Web server for dynamic interaction. Combined with the basic requirements of embedded remote control system, the idea of component design is proposed, the major components of system functions are defined. According to the system functional requirement, the software is designed and realized. The practice prove, the scheme realize the remote control of the transmitter by the small cost. And the system is convenient and safe. The definite reference value is offered to the offspring complex remote control system.

A Timeline Optimization Approach of Green Requirement Engineering Framework for Efficient Categorized Natural Language Documents in Non-Functional Requirements

The system's functional requirements (FR) and non-functional requirements (NFR) are derived from the software requirements specification (SRS). The requirement specification is challenging in classification process of FR and NFR requirements. To overcome these issues, the work contains various significant contributions towards SRS, such as green requirements engineering (GRE), to achieve the natural language processing, requirement specification, extraction, classification, requirement specification, feature selection, and testing the quality attributes improvement of NFRs. In addition to this, the test pad-based quality study to determine accuracy, quality, and condition providence to the classification of non-functional requirements (NFR) is also carried out. The resulted classification accuracy was implemented in the MATLAB R2014; the resulted graphical record shows the efficient non-functional requirements (NFR) classification with green requirements engineering (GRE) framework.

Design and Application of a Virtual Simulation Teaching System Based on Cloud Service

To satisfy the demand of virtual simulation (VS) teaching system for storage capacity and computing power, it is of great significance to probe deep into the VS system oriented to cloud service (CS). This paper designs a CS-based VS teaching system, drawing on the relevant results on distributed VS system, the formalization of VS system architecture, and the semantic organizability of VS system. Firstly, the functional requirements of the CS-based VS teaching system were analyzed, and decomposed into three layers, namely, goal, function type, and function name. Then, a dynamic model of CS-based VS teaching system was constructed, whose simulation accuracy and precision were verified through experiments. The experimental results demonstrate the excellent simulation performance of the proposed system. The research findings provide reference for applying CS system design in other fields.

Optimization Layout of Marketing Management Information System of Hotel and Restaurant Based on B / S Mode

With the rapid development of the hotel industry in China, more and more hotels adopt information management system to deal with a lot of information to realize the automation and informatization of hotel management. This article analyzes the research status of hotel food and beverage marketing management at home and abroad, and designs a new type of hotel food and beverage marketing management information system, the system functional requirements, and each function module in detail analysis, through the test, verifies the practicability of the system.

FishCoral-PRSA Information System for Albay Gulf

Purpose – The demand for the development of information systems provides a critical role in project management considering the call towards project automation. The study aims to develop and implement an information system (IS) used to managed the assessment results from socio-economic assessment, aquatic ecology and habitat, water quality assessment and capture fisheries of Albay Gulf. The study utilized the features of Geographical Information System (GIS) to render the coordinates of sampling target sites for spatial referencing. The Rational Unified Process (RUP) model was used to design the overall design, implementation and evaluation of the system. The source code of the developed program was used to develop the test cases the results showed that the internal and external characteristics of the developed system satisfied the standard functional system requirements. Thus, the system offers the features of an information system and may serve as a model of future IS projects. Information systems played a critical role in project management. The purpose of the study is to develop an information system to database the participatory resource and socio-economic assessment (PRSA) of Albay gulf. The system features managed the requirements for socio-economic, aquatic ecology and habitat, water quality and capture fisheries assessment. The features of the Geographical Information System (GIS) used to render the coordinates for spatial referencing of targets of the different components. The BFAR as the funding agency shall serve as the administrator of the system and in support Bicol University can help in the pilot testing of the developed system to partner agencies and various stakeholders.Method – The study used developmental type of research using Rational Unified Process (RUP). The system used PHP applications, bootstrap framework and other tools to design the functional requirements of the system. Black-box and White-box testing was used to analyze and validate the internal structures and functionalities of the system components including the full visibility of the logic and code structures.Results – This study generated the features for socio-economic, aquatic ecology and habitat, water quality and capture fisheries components. Each component has its own user interface showing the assessment results, field activities and infographics. Conclusion – The study provides effective and efficient interface for socio-economic assessment, aquatic ecology and habitat, water quality and capture fisheries assessment. The application of geographical information system generated the geospatial location for coral reefs, seaweed/seagrass, and mangrove sample target areas. Recommendations – The implementation of the system will help Government agencies like DA and BFAR secure the information (especially in projects like this) and serve as reference for future projects.Research Implications – The system is significant in providing updated information relating to socio-economic, aquatic ecology and habitat, water quality and capture fisheries which shall be used as policy support for Government and other stakeholders.