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With the development and popularization of Internet, distance education has already entered the stage based on Web. Due to the shortcomings of traditional methods in developing Web application, the MVC (model-view-controller) pattern is introduced. The separation of logic programming from interface design is effectively archived by the three kinds of technology correlated with Java: JSP, Servlet and JavaBeans. This paper analyses MVC pattern. On the purpose of the unanimous solution of distance education and commercialization, an improved MVC pattern based on the conventional one is introduced. The practice of developing the distance education system proved the improved pattern is feasible.

Model-View-Controller (MVC) pattern is very useful and popular design pattern that separates the modeling of the domain, the presentation, and the actions based on user input into three separate classes. The model acts as the domain that software is built around, the view as the visual representation of a model. It is usually the resulting markup that the framework renders to the browser and the controller responsible for processing input, acting upon the model, and deciding on what action should be performed, such as rendering a view or redirecting to another page for supporting a business models. Hadoop MapReduce paradigm applied for collected the several datasets for generating the large volume of data in batch processing. In this paper enhanced the Hadoop MapReduce for processing large scale and different data set across platform with MVC pattern. In general, the system consists of five mainly methods: 1.) Collected data sources from different platforms such as the registrar system, web mail, web blogs, news and the English Wikipedia that are included in the data file system at local system, 2.) Generate the data into a map slot from input format, 3.) calculate the jobs from the business logic, 4.) Create a data model based on data entity framework, and 5.) Display an user interface for supporting the business interfaces.

In recent years, the foremost of the progress area unit having issue to adapt the advanced policies and most of the approaches required customized workflow engines. This research work focuses on projecting a new changed Model-View-Controller (MVC) framework for imposing the advanced policies to dynamic workflows. The framework Model-Operations-View-Events (MOVE) is especially supported Model-View-Controller pattern that is employed to feature the dynamic sites. The controller element in MVC framework is spitted into 2 blocks namely Operations and Events owing to artifact too several codes into the controller in MVC pattern we tend to area unit going for improved MVC framework. The main aim is to style a progress processes as a template in abstract level. The progress language is employed to implement the logic and imposing any kind of policies. Additionally to the present we tend to area unit attending to value by suggests that of learning the confidentiality and it's used permits the application-specific adaptation work running instance.

Pengembangan perangkat lunak adalah tugas kompleks dan membutuhkan adaptasi untuk mengakomodasi kebutuhan pengguna. Untuk membuat konsep dan perubahan perangkat lunak, dalam pemeliharaan, sekarang telah dikembangkan lebih mudah dalam pengembangan perangkat lunak, pola model-view-controller, yang merupakan arsitektur yang dapat membantu memfasilitasi dalam pengembangan dan pemeliharaan perangkat luna. Hal ini, karena dalam arsitektur model tiga-lapis, yaitu: tampilan dan pengontrolan dalam pembangunan dilakukan secara independen, sehingga dapat memberikan dahan dalam pengembangan dan pemeliharaan. Selain itu, arsitektur ini juga dapat melihat hal-hal yang sederhana dan menarik bagi pengguna. Software sistem on-line test adalah perangkat lunak yang memerlukan interaksi dengan pengguna, dan pemeliharaan perangkat adaptif. Karena sistem ujian on-line memerlukan pengembangan perangkat lunak untuk mengakomodasi kebutuhan ini berkembang dengan cepat. Makalah ini untuk menganalisis Model-View-Controller dan mencoba pembangunan, untuk menerapkannya dalam pengembangan perangkat lunak sistem pengujian on-line.

This paper describes the process and mothods of a mobile client application.The application uses JAVA, Google ADT, MyEclipse as the language and tools. and uses the MVC(Model-View-Controller) pattern. The main functions including news display;Blog showing, Blog comment; portal Information; Forum levy; Online login and so on. In addition, introduces the analysis and design of the application.

This paper proposed a model editor that can create graphically multiagent models, and a simulator development method using the editor to build multiagent simulators. Development and management of the models became very easy. In addition, reusability of the models also became very high, and simulator platforms could be changed flexibly. The proposed method was applied to some multiagent simulators and the results show that our method is effective in developing multiagent models and simulators. As future problems, we must improve the model diagrams to increase automatic code generation rates, and prepare other templates for various frameworks.

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.

The rapid development of information technology has provided significant opportunities to improve the efficiency of academic administration in schools. One of the common problems faced by educational institutions is the manual process of subject scheduling, which is time-consuming and prone to schedule conflicts among teachers, classes, and learning time. This problem is also experienced by SMPK Flos Carmeli, where the preparation of subject schedules has not yet been supported by an integrated computerized system. This study aims to design and develop a web-based subject scheduling application at SMPK Flos Carmeli using the Model–View–Controller (MVC) architecture. The research method employed is Research and Development (R&D) with the Waterfall software development model, which includes the stages of requirements analysis, system design, and application implementation. Data were collected through interviews, observations, and literature review to obtain system requirements that align with the school’s conditions. The application was developed using native PHP with the implementation of the MVC pattern to produce a structured, maintainable, and flexible system. The results show that the developed application is able to support the subject scheduling process in a faster, more accurate, and well-organized manner. The system provides features for managing teacher data, class data, time slots, schedule arrangement, and schedule printing, thereby minimizing schedule conflicts and improving the efficiency of school administrative work. Therefore, this subject scheduling application is expected to support the digitalization of academic administration and enhance the effectiveness of the teaching and learning process at SMPK Flos Carmeli.

In modern complex enterprise applications re-usability and interoperability of software components are of vital importance due to the increasing heterogeneous development platforms and variety of end user devices in which computational services need to be exposed. The need of code solutions re-usability led to the development of Design Patterns, which are means to encapsulate proven solutions to recurrent problems and they provide developers with a common language to abstract the logic encrypted under source code implementation structures. In this article we focus on the Model-View-Controller (MVC) design pattern. Although it represented a step forward for components re-usability, the model and view are still coupled compromising the business logic and introducing a degree of complexity for the applications development. We discuss two main variations of the MVC pattern that are aiming to complete decoupling of Model from View, as well as platforms supporting the development of MVC based applications. Our research is based on the original Virtual-MVC design pattern, in which we model the controller as middleware to achieve full decoupling of the model from view. Our main contribution is to demonstrate the development process of re-usable components in the framework of the V-MVC pattern, through a development platform that supports Virtual-MVC based applications.KeywordsDesign PatternsModel-View-ControllerService Oriented ArchitectureWeb ServicesE-Learning

The increasing usage of cloud computing, along with the proliferation of mobile devices and the demand for multimedia services, are changing the life style of users and creating new opportunities to providers and clients. Multimedia data will account for up to 90% of all Internet traffic in a few years, where most of the content will be created, shared, and accessed by mobile smartphones/tablets (carried by humans or placed in vehicles). However, this novel mobile multimedia era imposes new challenges for the networks, content, terminals, and humans, and must overcome problems associated, for instance, with high congestion, low scalability, fast battery consumption, and poor user experience. This paper discusses recent advances and challenges in human-centric mobile multimedia cloud computing approaches. On the one hand, Internet cloud will ubiquitously enrich multimedia mobile environments with more advanced and powerful features, including high processing and memory, scalability, availability, and adaptability. On the other hand, mobile devices will efficiently cooperate with each other to form mobile clouds that offload the Internet clouds from tasks that the latter cannot perform in a timely or efficient manner, including video and resource sharing. Both Internet and mobile clouds will be efficiently used to adapt/optimize multimedia flows to a single user or a group of users according to the current network conditions, context-awareness, content characteristics, device capabilities, and human experience.

Increasingly, modern mobile devices allow capturing images at Ultra-High-Definition (UHD) resolution, which includes 4K and 8K images. However, current single image super-resolution (SISR) methods focus on super-resolving images to ones with resolution up to high definition (HD) and ignore higher-resolution UHD images. To explore their performance on UHD images, in this paper, we first introduce two large-scale image datasets, UHDSR4K and UHDSR8K, to benchmark existing SISR methods. With 70,000 V100 GPU hours of training, we benchmark these methods on 4K and 8K resolution images under seven different settings to provide a set of baseline models. Moreover, we propose a baseline model, called Mesh Attention Network (MANet) for SISR. The MANet applies the attention mechanism in both different depths (horizontal) and different levels of receptive field (vertical). In this way, correlations among feature maps are learned, enabling the network to focus on more important features.

Chapter 15 - Considerations when selecting an OTDR

The wide availability of sensing modules and computing capabilities in modern mobile devices (smartphones, smart watches, in-vehicle sensors, etc.) is driving the shift from mote-class wireless sensor networks (WSNs) to the new era of crowdsensing WSNs. In this emerging paradigm sensors are no longer static and homogeneous, but are rather worn/carried by people or cars. This results in a new type of wide-area WSN—crowd-based and overlaid on top of heterogeneous communication technologies—that paves the way for very innovative applications. To this aim, the positioning of mobile devices operating in the network becomes crucial. Indeed, the pervasive, almost ubiquitous availability of smart devices brings unprecedented opportunities but also poses new research challenges in their precise location under mobility and dense-multipath environments typical of urban and indoor scenarios. In this paper, we review recent advances in the field of wireless positioning with focus on cooperation, mobility, and advanced array processing, which are key enablers for the design of novel localization solutions for crowdsensing WSNs.

The capabilities of modern information and communication devices (tablets, glasses, helmets, etc.) that provide user interfaces with Augmented Reality (AR) are successfully used in education and maintenance support nowadays. The main benefits are concerned with the possibility to display the required information in the context of operations performed by the user. Technically it is implemented in the form of textual hints or visual 3D objects with highly realistic appearance and behavior. New features prompt new challenges: the user can be easily overloaded with lots of information, and some real objects that require user’s attention can be overlapped by virtual ones in one scene. In order to solve this problem and improve the usability and effectiveness of AR devices application in maintenance and education it is proposed to build adaptive user interfaces that consider the context and focus of the user. From information technology perspective this approach forms a promising area of application of high-potential technologies including machine learning and computer vision. In this paper there is presented an example of AR implementation as a part of an interactive manual, which provides adaptation and personalization based on the concept of accented visualization. Identification of objects and their classification is implemented using the artificial neural network.

Augmented reality applications are gaining popularity due to increased capabilities of modern mobile devices. Creating AR content however is tedious and traditionally done on desktop environments by professionals, with extensive knowledge and/or even programming skills required. In this demo, we demonstrate a complete mobile approach for creating vision-based AR in both indoor and outdoor environment. Using hyperlinks, Web mashups are built to dynamically augment the physical world by normal users without programing skills.