INVESTIGATION OF THE WEB SERVICE ACCESS MODEL ASP.NET USING A PROXY ASSEMBLY ON THE EXAMPLE OF DEVELOPING A VIDEO RENTAL SERVICE

В статье рассматривается исследование модели соединения Web-приложения и Web-службы напрямую и через прокси. Рассматривается кроссплатформенная высокопроизводительная среда ASP.NET. При разработке используется паттерн MVC. Формирование запросов реализуется с помощью архитектурного стиля REST и протокола передачи гипертекста HTTP. Строится модель взаимодействия Web-приложения и Web-службы. Целью данной работы является исследование данной модели взаимодействия напрямую и через прокси. Были разработаны Web-приложение, являющееся сервисом по аренде видеофильмов и Web-служба, функциональное назначение которой – работа с базой данных Web-сервера. Для реализации прокси сборки было создан отдельный проект. В настройках проекта были прописаны протокол передачи данных, хост API, порт и роутинги перенаправления запросов. Исследование модели проводилось с помощью программного обеспечения Postman и инструментов браузера. Результаты исследования показывают плюсы и минусы использования прокси при взаимодействии Web-приложения и Web-службы. Данная статья поможет заказчикам, разработчикам Web-приложений выбрать модель соединения Web-приложения и Web-службы, соответствующую решаемым задачам. The article considers the study of the connection model of a Web application and a Web service directly and through a proxy. A cross-platform high-performance environment is considered ASP.Net. The MVC pattern is used during development. Request generation is implemented using the REST architectural style and the HTTP hypertext transfer protocol. A model of interaction between a Web application and a Web service is being built. The purpose of this work is to study this model of interaction directly and through a proxy. A Web application was developed, which is a video rental service and a Web service, the functional purpose of which is to work with a Web server database. A separate project was created to implement the build proxy. In the project settings, the data transfer protocol, API host, port and request forwarding routings were registered. A previously developed service was used as an API. The model was studied using Postman software and browser tools. The results of the study show the pros and cons of using a proxy when interacting with a Web application and a Web service. This article will help customers, developers of Web applications to choose a model for connecting a Web application and a Web service that corresponds to the tasks being solved.

On the Benefits of Using MVC Pattern for Structuring Event-B Models of WIMP Interactive Applications

This paper presents a formal development approach for designing interactive applications using a correct-by-construction approach. In this work, we propose a refinement strategy using model-view-controller (MVC) to structure and design Event-B formal models of the interactive application. The proposed MVC-based refinement strategy facilitates the development of an abstract model and a series of refined models by introducing the possible modes, controller’s behaviour and visual components of the interactive application while preserving the required interaction-related safety properties. To demonstrate the effectiveness, scalability, reliability and feasibility of our approach, we use a small example (from automotive domain) and real-life industrial case studies (from aviation). The entire development is realized in Event-B and the associated Rodin tool is used to analyse and verify the correctness of the formalized model. Finally, the developed Event-B models are used to generate source code using EB2ALL tool for going from the specification to the implementation of the interactive application.

Design and Implementation of a Simplified CodeIgniter Framework for Commercial Vehicles Ticket Reservation System

With traditional strategies to design websites comes with many obstacles, many limitations, time-consuming and other relative errors. Subject to this reason, new technology like MVC pattern frameworks was discovered through some organizations to address such problems. The task of manual schedule and verification of travellers' booked tickets is laborious, time-consuming and the accuracy of the manual booking system is in question. Therefore, it was a mind set of computerizing these activities. These studies present the design and implementation of a website using CodeIgniter Framework for Commercial Vehicle Ticket Reservation System. The load test functional behavior and measurement of performance was determined. The final result proved that the development was standardized and the non-commercial enterprise logic relationship of the e-transport system was automatically processed. These include Commuter companies, travellers, Human resources management activities and booking activities, thus helping transporters to efficiently handle their road transport business and other related activities.

Automatic Code Generation of MVC Web Applications

As Web applications become more and more complex, the development costs are increasing as well. A Model Driven Architecture (MDA) approach is proposed in this paper since it simplifies modeling, design, implementation, and integration of applications by defining software mainly at the model level. We adopt the The Unified Modeling Language (UML), as modeling language. UML provides a set of diagrams to model structural and behavioral aspects of the Web applications. Automatic translation of UML diagrams to the Object-Oriented code is highly desirable because it eliminates the chances of introducing human errors. Moreover, automatic code generation helps the software designers delivering of the software on time. In our approach, the automatic transformations across the MDA’s levels are based on meta-models for two of the most important constructs of UML, namely Use Cases and classes. A proprietary tool (called xGenerator) performs the transformations up to the Java source code. The architecture of the generated Web applications respects a variant of the well-known Model-View-Controller (MVC) pattern.

Tourism Marketing Platform on Mobile Internet

With the progress of science and technology, the development and improvement of internet technology and smart phones are gradually popular in the daily life; this world has achieved a swift transition to the mobile internet era from the traditional internet era. Various tourist areas have established “Digital Scenic Spots” in recent years, making the internet combine tightly with tourism. The construction of scenic-spot marketing platforms based on internet is an important component of constructing “Digital scenic spot.” In this article, a tourism marketing platform on the mobile internet is established by analyzing the mobile internet mainstream technology and its application in tourism marketing. In this article, the architecture of the marketing system uses the MVC pattern with a three-tier distributed structure and the logic layer of the system uses a construction of JavaBean and EJB. The article also builds a WeChat marketing model based on MM-TIP. The result of research provides some reference for constructing tourism marketing platform based on mobile internet.

Tourism Marketing Platform on Mobile Internet

With the progress of science and technology, the development and improvement of internet technology and smart phones are gradually popular in the daily life; this world has achieved a swift transition to the mobile internet era from the traditional internet era. Various tourist areas have established “Digital Scenic Spots” in recent years, making the internet combine tightly with tourism. The construction of scenic-spot marketing platforms based on internet is an important component of constructing “Digital scenic spot.” In this article, a tourism marketing platform on the mobile internet is established by analyzing the mobile internet mainstream technology and its application in tourism marketing. In this article, the architecture of the marketing system uses the MVC pattern with a three-tier distributed structure and the logic layer of the system uses a construction of JavaBean and EJB. The article also builds a WeChat marketing model based on MM-TIP. The result of research provides some reference for constructing tourism marketing platform based on mobile internet.