scholarly journals Module pattern of the information web-system interface

2020 ◽  
Vol 4 ◽  
pp. 74-81
Author(s):  
D.V. Ratov ◽  
Keyword(s):  
User Interface ◽  
Web Application ◽  
Web Applications ◽  
Original Data ◽  
Business Logic ◽  
Interactive Interface ◽  
Web System ◽  
Time Required ◽  
Cloud Technologies ◽  
Positive Effect

The paper considers the architectural template and methods of building a module for organizing the work of the window information web-system for the formation of medical certificates. To solve this problem, modern tools of web programming and software development are used: a module with the im-plementation of JavaScript objects – window manager and a class of window interactive interface, which allow the web application to function in the organization of cloud technologies. The software implementation is considered and the results of practical use of the developed module with objects and classes are given. The proposed architecture template of the module for the implementation of the man-ager and the functionality of the user window interface allowed to create a module of the information system for the organization of business logic when working with medical certificates. The modular ap-proach has had a positive effect on the sensitivity of the user interface and the ability to scale the func-tionality of the system itself in the implementation of cloud technologies. Due to the modular ap-proach, the rendering time of web-forms with the original data in most cases is very small compared to the time required by the browser to parse and display the entire database array, which has a positive ef-fect on the sensitivity of the user interface. The generation of web-forms is of great practical im-portance, because debugging in this software structure is a weak point for many frameworks. The re-sults of use showed that the mechanism of modular creation of the manager and the window interactive interface of web-forms not only organically fits into already existing technologies of construction of web-applications, but also has sufficient potential to become the core of cloud technologies of develop-ment of multiuser information systems and web- services.

scholarly journals Performance measurement and analytic modeling of a web application

2021 ◽  
Author(s):  
Yasir Shoaib
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Research Work ◽  
Queueing Network ◽  
Performance Model ◽  
Load Testing ◽  
Performance Models ◽  
Analytic Modeling ◽  
Service Demand ◽  
Time Required

The performance characteristics such as throughput, resource utilization and response time of a system can be determined through measurement, simulation modeling and analytic modeling. In this thesis, measurement and analytic modeling approaches are applied to study the performance of a Apache-PHP-PostgreSQL web application. Layered Queueing Network (LQN) analytic modeling has been used to represent the system's performance model. The measurements found from load testing are compared with model analysis results for model validation. This thesis aims to show that LQN performance models are versatile enough to allow development of highly granular and easily modifiable models of PHP-based web applications and furthermore are capable of performance prediction with sufficiently high accuracy. Lastly, the thesis also describes utilities and methods used for load testing and determination of service demand parameters in our research work which would aid in shortening time required in development and study of performance models of similar systems.

Research on XML Based Flexible Web Application Design

2012 ◽  
Vol 268-270 ◽  
pp. 1661-1666
Author(s):  
Chuan Sheng Zhou
Keyword(s):  
User Interface ◽  
Data Model ◽  
Web Application ◽  
Web Applications ◽  
Software Bus ◽  
Model Flexibility ◽  
Business Requirements ◽  
Business Flow ◽  
Application Design

During web applications developed and deployed in many and many enterprises today, how to make sure their web applications satisfied to their individual and specific business requirements and marketing changes has been become a major problem. As now a lot of web applications are only designed and developed for specific business and they are normally high-coupled together with very bad system opening, collaboration, and flexibility. Here, by research on XML based web application design with software bus, component and workflow technologies, with multiple tiers layout and from user interface flexibility, business flow flexibility and data model flexibility, it illustrates a new way for a flexible web application design and try to improve web application flexibilities and to enhance enterprise satisfaction to their applications meeting with their business and marketing changes.

A Research of the Essence of SQL Injection Attacks Vulnerability

2015 ◽  
Vol 719-720 ◽  
pp. 935-940
Author(s):  
Min Wan ◽  
Kun Liu
Keyword(s):  
Static Analysis ◽  
Web Application ◽  
Web Applications ◽  
Semantic Information ◽  
Semantic Gap ◽  
Sql Injection ◽  
Injection Attacks ◽  
Web System ◽  
Sql Injection Attacks ◽  
Filtering Techniques

Semantic Gap problem is the essence of the SQL Injection Attacks vulnerability in Web applications. Web application loses the semantic information while the SQL statement is constructed dynamically. This paper analyzes the cause of the SQLIA vulnerability. And then it analyzes several suggested techniques, such as the filtering techniques and the static analysis, and points out their drawbacks in the SOLIA prevention, which leads to the conclusion that the key problem for the eradication of SQLIA is to solve the semantic gap problem causing by the unstructured SQL statement in the process of constructing a Web system dynamically.

Elastic Application Container System

2015 ◽  
pp. 920-942
Author(s):  
Sijin He ◽  
Li Guo ◽  
Yike Guo
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Resource Efficiency ◽  
Resource Provisioning ◽  
Resource Usage ◽  
System Technology ◽  
Resource Unit ◽  
Cloud Technologies ◽  
Cloud Applications ◽  
The Web

Cloud applications have been gaining popularity in recent years for their flexibility in resource provisioning according to Web application demands. The Elastic Application Container (EAC) system is a technology that delivers a lightweight virtual resource unit for better resource efficiency and more scalable Web applications in the Cloud. It allows multiple application providers to concurrently run their Web applications on this technology without worrying the demand change of their Web applications. This is because the EAC system constantly monitors the resource usage of all hosting Web applications and automatically reacts to the resource usage change of Web applications (i.e. it automatically handles resource provisioning of the Web applications, such as scaling of the Web applications according to the demand). In the chapter, the authors firstly describe the architecture, its components of the EAC system, in order to give a brief overview of technologies involved in the system. They then present and explain resource-provisioning algorithms and techniques used in the EAC system for demand-driven Web applications. The resource-provisioning algorithms are presented, discussed, and evaluated so as to give readers a clear picture of resource-provisioning algorithms in the EAC system. Finally, the authors compare this EAC system technology with other Cloud technologies in terms of flexibility and resource efficiency.

scholarly journals Processing and Analysis of Condensation Trails Data Using Database Systems

2019 ◽  
Vol 7 (3) ◽  
pp. 15-20
Author(s):  
Václav Vidoň ◽  
Sébastien Lán
Keyword(s):  
User Interface ◽  
Web Application ◽  
Web Applications ◽  
Function Analysis ◽  
Database Systems ◽  
Ground Control ◽  
And Behavior

This article describes the causes and behavior of aircraft condensation trails, aircraft radar technology, communication between aircraft and ground control stations, description of the function, analysis and processing of the ADS-B receivers and registers data. It also deals with the design and creation of a suitable web application with a simple user interface and a database for storing and processing this data. The work was based mainly on academical materials and sources, focusing on the issue of condensation trails, ADS-B functionality and programming of web applications.

The Java Portlet Specification (Die Java Portlet Spezifikation)

2004 ◽  
Vol 46 (5) ◽  
Author(s):  
Stefan Hepper
Keyword(s):  
Information Systems ◽  
User Interface ◽  
Web Application ◽  
Web Applications ◽  
End User ◽  
Dynamic Content ◽  
Java Technology ◽  
Application Programming ◽  
User Centric ◽  
The Web

SummaryPortlets are Java technology based web components, managed by a portlet container, that process requests and generate dynamic content. They are used by portals as pluggable user interface components that provide a presentation layer to Information Systems. After servlets portlets are the next step in web application programming, as they allow the integration of different applications into one consistent view for the end-user. They enable modular and user centric web applications and thus go beyond the servlet model where the web application is one monolithic block. In this article we present the JSR 168 Java Portlet Specification and explain its underlying concepts. We show a Portlet example and discuss how portlets interact with other Java technologies.

Elastic Application Container System

2014 ◽  
pp. 376-398 ◽  
Author(s):  
Sijin He ◽  
Li Guo ◽  
Yike Guo
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Resource Efficiency ◽  
Resource Provisioning ◽  
Resource Usage ◽  
System Technology ◽  
Resource Unit ◽  
Cloud Technologies ◽  
Cloud Applications ◽  
The Web

Cloud applications have been gaining popularity in recent years for their flexibility in resource provisioning according to Web application demands. The Elastic Application Container (EAC) system is a technology that delivers a lightweight virtual resource unit for better resource efficiency and more scalable Web applications in the Cloud. It allows multiple application providers to concurrently run their Web applications on this technology without worrying the demand change of their Web applications. This is because the EAC system constantly monitors the resource usage of all hosting Web applications and automatically reacts to the resource usage change of Web applications (i.e. it automatically handles resource provisioning of the Web applications, such as scaling of the Web applications according to the demand). In the chapter, the authors firstly describe the architecture, its components of the EAC system, in order to give a brief overview of technologies involved in the system. They then present and explain resource-provisioning algorithms and techniques used in the EAC system for demand-driven Web applications. The resource-provisioning algorithms are presented, discussed, and evaluated so as to give readers a clear picture of resource-provisioning algorithms in the EAC system. Finally, the authors compare this EAC system technology with other Cloud technologies in terms of flexibility and resource efficiency.

scholarly journals Extensibility Interaction Flow Modeling Language Metamodels to Develop New Web Application Concerns

2017 ◽  
Vol 2 (3) ◽  
pp. 172-177 ◽  
Author(s):  
Karzan Wakil ◽  
Dayang N.A. Jawawi
Keyword(s):  
User Interface ◽  
Web Application ◽  
Web Applications ◽  
Systematic Approach ◽  
Modeling Language ◽  
Flow Modeling ◽  
Web Engineering ◽  
New Model ◽  
New Models ◽  
The Web

Web engineering is a systematic approach to develop web applications, and numerous web engineering methods have been proposed. These methods were extended through defining new models by using different mechanisms to capture the web application concepts. Due to the complexity rising of web applications, the web engineering methods cannot provide web solutions anymore. Even though Interaction Flow Modeling Language (IFML) is recently proposed as a new method for developing web applications, it has limitations. Therefore these methods need to be improved. In this paper, we present the ability of IFML extensibility to support new concerns from web applications. Moreover, we extend IFML through UML mechanisms to support new concerns from the context to the user interface. The new IFML solves the lack of context web application through defining a new model and becomes a new direction to develop concerns modern web applications.

scholarly journals Performance measurement and analytic modeling of a web application

2021 ◽  
Author(s):  
Yasir Shoaib
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Research Work ◽  
Queueing Network ◽  
Performance Model ◽  
Load Testing ◽  
Performance Models ◽  
Analytic Modeling ◽  
Service Demand ◽  
Time Required

The performance characteristics such as throughput, resource utilization and response time of a system can be determined through measurement, simulation modeling and analytic modeling. In this thesis, measurement and analytic modeling approaches are applied to study the performance of a Apache-PHP-PostgreSQL web application. Layered Queueing Network (LQN) analytic modeling has been used to represent the system's performance model. The measurements found from load testing are compared with model analysis results for model validation. This thesis aims to show that LQN performance models are versatile enough to allow development of highly granular and easily modifiable models of PHP-based web applications and furthermore are capable of performance prediction with sufficiently high accuracy. Lastly, the thesis also describes utilities and methods used for load testing and determination of service demand parameters in our research work which would aid in shortening time required in development and study of performance models of similar systems.

scholarly journals Object adaptation of Drag and Drop technology for web-system interface components

2021 ◽  
pp. 7-12
Author(s):  
Д.В. Ратов
Keyword(s):  
Information System ◽  
Information Systems ◽  
Web Application ◽  
Web Applications ◽  
Medical Information ◽  
Medical Information System ◽  
Basic Algorithm ◽  
Web System ◽  
The Web ◽  
Drag And Drop

Today, in the development of information systems, cloud technologies are often used for remote computing and data processing. There are web technologies, and on their basis, libraries and frameworks have been developed for creating web applications and user interfaces designed for the operation of information systems in browsers. Ready-made JavaScript libraries have been developed to add drag and drop functionality to a web application. However, in some situations, the library may not be available, or there may be overhead or dependencies that the project does not need to use it. In such situations, an alternative solution provides the functionality of APIs available in modern browsers. The article discusses the current state of the methods of the Drag and Drop mechanism and proposes a programmatic way to improve the interface by creating a class for dragging and dropping elements when organizing work in multi-user information web systems. Drag and Drop is a convenient way to improve the interface. Grabbing an element with the mouse and moving it visually simplifies many operations: from copying and moving documents, as in file managers, to placing orders in online store services. The HTML drag and drop API uses the DOM event model to retrieve information about a dragged element and update that element after the drag. Using JavaScript event handlers, it is possible to turn any element of the web system into a drag-and-drop element or drop target. To solve this problem, a JavaScript object was developed with methods that allow you to create a copy of any object and handle all events of this object aimed at organizing the Drag and Drop mechanism. Basic algorithm of Drag and Drop technology based on processing mouse events. The software implementation is considered and the results of the practical use of object adaptation of the Drag and Drop technology for the interface components of the web system - the medical information system MedSystem, in which the application modules have the implementation of the dispatcher and the interactive window interface are presented. In the "Outpatient clinic" module, the Drag and Drop mechanism is used when working with the "Appointment sheet". In the "Hospital" module of the MedSystem medical information system, the Drag and Drop mechanism is used in the "List of doctor's appointments". The results of using object adaptation of Drag and Drop technology have shown that this mechanism organically fits into existing technologies for building web applications and has sufficient potential to facilitate and automate work in multi-user information systems and web services.

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