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.

scholarly journals Evaluation of Web Applications based on UX Parameters

2019 ◽  
Vol 9 (4) ◽  
pp. 2564
Author(s):  
Anish Mistry ◽  
Arokia Paul Rajan
Keyword(s):  
Information Technology ◽  
Experimental Study ◽  
User Experience ◽  
User Satisfaction ◽  
Web Application ◽  
Web Applications ◽  
Primary Objective ◽  
Secondary Objective ◽  
User Centric ◽  
The Web

<span lang="EN-US">The objective of evaluating User Experience (UX) in this era of technology is to enhance the user satisfaction. Earlier applications were built with the aim of reducing the work of users. But with the evolution of the technology, the emergence of new gadgets and new trends in the information technology, the applications had to be more user-centric. The primary objective of this research is to evaluate the user experience of web applications based on different UX parameters using different techniques and given a rating. Each of these ratings are combined to determine the overall rating of UX for the web application. Also, the secondary objective of this research is to provide suggestions or recommendations based on the ratings to improve the UX of the web applications. An experimental study was conducted and the results show a significant improvement. Areas of further enhancements have also been identified and presented.</span>

A Study on Performance of E-Commerce Web Applications

2018 ◽  
pp. 192-199
Author(s):  
Sreedhar G
Keyword(s):  
Web Application ◽  
World Wide ◽  
Web Applications ◽  
Grading System ◽  
End User ◽  
User Perspective ◽  
Doing Business ◽  
Business Functions ◽  
Cost Efficient ◽  
The Web

The growth of World Wide Web and technologies has made business functions to be executed fast and easier. E-commerce has provided a cost efficient and effective way of doing business. In this paper the importance of e-commerce web applications and how Internet of Things is related to e-commerce is well discussed. In the end-user perspective, the performance of e-commerce application is mainly connected to the web application design and services provided in the e-commerce website. A grading system is used to evaluate the performance of each e-commerce website.

A Study on Performance of E-Commerce Web Applications

2021 ◽  
pp. 1136-1143
Author(s):  
Sreedhar G
Keyword(s):  
Web Application ◽  
World Wide ◽  
Web Applications ◽  
Grading System ◽  
End User ◽  
User Perspective ◽  
Doing Business ◽  
Business Functions ◽  
Cost Efficient ◽  
The Web

The growth of World Wide Web and technologies has made business functions to be executed fast and easier. E-commerce has provided a cost efficient and effective way of doing business. In this paper the importance of e-commerce web applications and how Internet of Things is related to e-commerce is well discussed. In the end-user perspective, the performance of e-commerce application is mainly connected to the web application design and services provided in the e-commerce website. A grading system is used to evaluate the performance of each e-commerce website.

Applying Patterns for Reengineering to the Web

2011 ◽  
pp. 167-196
Author(s):  
Uwe Zdun
Keyword(s):  
Software Maintenance ◽  
Web Application ◽  
Application Programming Interface ◽  
Legacy Systems ◽  
Dynamic Content ◽  
Application Programming ◽  
Present Pattern ◽  
Different Sources ◽  
Programming Interface ◽  
The Web

This chapter examines the use of patterns for reengineering legacy systems to the Web. Today reengineering existing (legacy) systems to the Web is a typical software maintenance task. In such projects developers integrate a Web representation with the legacy system’s application programming interface (API) and its responses. Often, the same information is provided to other channels than HTTP and in other formats than HTML as well, and the old (legacy) interfaces are still supported. Add-on services such as security or logging are required. Performance and scalability of the Web application might be crucial. To resolve these issues, many different concepts and frameworks have to be well understood, especially legacy system wrapping, connection handling, remoting, service abstraction, adaptation techniques, dynamic content generation, and others. In this chapter, we present patterns from different sources that resolve these issues. We integrate them to a pattern language operating in the context of reengineering to the Web, and present pattern variants and examples in this context.

scholarly journals An Approach to Implement Cryptographic Protocol Version Downgrade Within a Secure Internal Network: TLS 1.x to SSL

2019 ◽  
Vol 13 (10) ◽  
pp. 179
Author(s):  
Ganeshkumar S ◽  
Elango Govindaraju
Keyword(s):  
Web Application ◽  
Web Applications ◽  
The Internet ◽  
Cryptographic Protocol ◽  
End User ◽  
Web Based ◽  
Internal Network ◽  
Prohibitive Cost ◽  
Private Network ◽  
The Web

The end to end encryption of connections over the internet have evolved from SSL to TLS 1.3 over the years. Attacks have exposed vulnerabilities on each upgraded version of the cryptographic protocols used to secure connections over the internet. Organisations have to keep updating their web based applications to use the latest cryptographic protocol to ensure users are protected and feel comfortable using their web applications. But, the problem is that, web applications are not always standalone systems, there is usually a maze of systems that are integrated to provide services to the end user. The interactions between these systems happens within the controlled internal private network environment of the organisation. While only the front ending web application is visible to the end user. It is not often feasible to upgrade all internal systems to use the latest cryptographic protocol for internal interfaces/integration due to prohibitive cost of redevelopment and upgrades to infra and systems. Here we define an algorithm to setup internal &amp; external firewalls to downgrade to a lower version of the cryptographic protocol (SSL) within the internal network for the integration/interfacing connections of internal systems while mandating the latest cryptographic protocol (TLS 1.x) for end user connections to the web application.

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 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.

THE USE OF WEB APPLICATIONS FOR THE SELECTION OF CROP GROWING TECHNOLOGIES

2018 ◽  
Vol 48 (3) ◽  
pp. 84-90 ◽  
Author(s):  
E. A. Lapchenko ◽  
S. P. Isakova ◽  
T. N. Bobrova ◽  
L. A. Kolpakova
Keyword(s):  
Web Application ◽  
Crop Production ◽  
Web Applications ◽  
Weather Forecast ◽  
Technical Institute ◽  
Software Complex ◽  
Agricultural Enterprise ◽  
Weather Situation ◽  
The Web ◽  
Selection Of

It is shown that the application of the Internet technologies is relevant in the selection of crop production technologies and the formation of a rational composition of the machine-and-tractor fl eet taking into account the conditions and production resources of a particular agricultural enterprise. The work gives a short description of the web applications, namely “ExactFarming”, “Agrivi” and “AgCommand” that provide a possibility to select technologies and technical means of soil treatment, and their functions. “ExactFarming” allows to collect and store information about temperature, precipitation and weather forecast in certain areas, keep records of information about crops and make technological maps using expert templates. “Agrivi” allows to store and provide access to weather information in the fi elds with certain crops. It has algorithms to detect and make warnings about risks related to diseases and pests, as well as provides economic calculations of crop profi tability and crop planning. “AgCommand” allows to track the position of machinery and equipment in the fi elds and provides data on the weather situation in order to plan the use of agricultural machinery in the fi elds. The web applications presented hereabove do not show relation between the technologies applied and agro-climatic features of the farm location zone. They do not take into account the phytosanitary conditions in the previous years, or the relief and contour of the fi elds while drawing up technological maps or selecting the machine-and-tractor fl eet. Siberian Physical-Technical Institute of Agrarian Problems of Siberian Federal Scientifi c Center of AgroBioTechnologies of the Russian Academy of Sciences developed a software complex PIKAT for supporting machine agrotechnologies for production of spring wheat grain at an agricultural enterprise, on the basis of which there is a plan to develop a web application that will consider all the main factors limiting the yield of cultivated crops.

scholarly journals A Sign of Things to Come: Predicting the Perception of Above-the-Fold Time in Web Browsing

2021 ◽  
Vol 13 (2) ◽  
pp. 50
Author(s):  
Hamed Z. Jahromi ◽  
Declan Delaney ◽  
Andrew Hines
Keyword(s):  
Web Application ◽  
Web Applications ◽  
State Of The Art ◽  
Influencing Factor ◽  
The State ◽  
Experimental Result ◽  
Web Page ◽  
To Come ◽  
Web Quality ◽  
The Web

Content is a key influencing factor in Web Quality of Experience (QoE) estimation. A web user’s satisfaction can be influenced by how long it takes to render and visualize the visible parts of the web page in the browser. This is referred to as the Above-the-fold (ATF) time. SpeedIndex (SI) has been widely used to estimate perceived web page loading speed of ATF content and a proxy metric for Web QoE estimation. Web application developers have been actively introducing innovative interactive features, such as animated and multimedia content, aiming to capture the users’ attention and improve the functionality and utility of the web applications. However, the literature shows that, for the websites with animated content, the estimated ATF time using the state-of-the-art metrics may not accurately match completed ATF time as perceived by users. This study introduces a new metric, Plausibly Complete Time (PCT), that estimates ATF time for a user’s perception of websites with and without animations. PCT can be integrated with SI and web QoE models. The accuracy of the proposed metric is evaluated based on two publicly available datasets. The proposed metric holds a high positive Spearman’s correlation (rs=0.89) with the Perceived ATF reported by the users for websites with and without animated content. This study demonstrates that using PCT as a KPI in QoE estimation models can improve the robustness of QoE estimation in comparison to using the state-of-the-art ATF time metric. Furthermore, experimental result showed that the estimation of SI using PCT improves the robustness of SI for websites with animated content. The PCT estimation allows web application designers to identify where poor design has significantly increased ATF time and refactor their implementation before it impacts end-user experience.

Task Modelling for the Web (Aufgabenmodellierung für interaktive Webanwendungen)

i-com ◽  
2008 ◽  
Vol 6 (3/2007) ◽  
pp. 23-29 ◽  
Author(s):  
Birgit Bomsdorf
Keyword(s):  
Task Performance ◽  
Web Application ◽  
Development Process ◽  
Web Applications ◽  
Web Engineering ◽  
Time Usage ◽  
Build Time ◽  
Object Models ◽  
The Web ◽  
Modelling Approach

SummaryTask modelling has entered the development process of web applications, strengthening the usage-centred view within the early steps in Web-Engineering (WE). In current approaches, however, this view is not kept up during subsequent activities to the same degree as this is the case in the field of Human-Computer-Interaction (HCI). The modelling approach presented in this contribution combines models as known from WE with models used in HCI to change this situation. Basically the WE-HCI-integration is supported by combining task and object models as known from HCI with conceptual modelling known from WE. In this paper, the main focus is on the WebTaskModel, a task model adapted to web application concerns, and its contribution towards a task-related web user interface. The main difference to existing task models is the build-time and run-time usage of a generic task lifecycle. Hereby the description of exceptions and erroneous situations during task performance (caused by, e.g., the stateless protocol or Browser interaction) is enabled and at the same time clearly separated from the flow of correct action.

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