What tasks does the application server solve?

The full use of custom business applications required software developers to create a special environment, which was later called the "application server". As a rule, this environment is integrated. In the case when we are considering Windows Server, it is possible to use products created with Microsoft .NET Framework 3.0 as the applications with which it will work. The installation of the application server assumes the choice of its role. It is quite possible to select the services that support applications created for working through COM +, as well as the formation of message queues, web services and distributed transactions.

Experts working in the field of IT technology, highly appreciated the benefits that the application server provides. He perfectly copes with a wide spectrum of problems. They include the effective development and management of high-performance business applications. In particular, the .NET Framework provides a simplified model for creating programs, as well as a model for high performance server applications. There is an opportunity to use web services, and there is also a function to reconcile the work of new applications with existing ones and with infrastructure.

A distinctive feature of the product from Microsoft is a simple and accessible in terms of understanding the installation wizard. The user can select various services and tools for running applications. But the program also provides for the automatic installation of necessary funds.

In the process of working, the application server encapsulates the lion's share of the business logic of the distributed application that is provided, and clients are accessed to the database. In other words, data and code are merged into an object. In this case, the implementation of the object is carried out hidden from the user, and only a specification or interface is provided to it. With the object, respectively, there is interaction only through the means of this interface.

This platform perfectly copes with the placement of non-visual components, like a standard node, and is also an access tool to the source components and data providers. The variety of functions and supported technologies allows the application to work with the widest spectrum of various objects.

It is also the responsibility of the remote data module to implement the main functions of the application server when working based on the suggestion that clients use the IAppServer interface directly or its minor version. In this case, the remote data module can not do without the required number of TDataSetProvider providers. With these components, packets are sent to the client application, and to be more precise, the components of the TdientDataSet. This provides access to the interface functions.

The concept of "application server" has become very popular due to the development of the mobile Internet and the expansion of mobile software. It is by taking as an example the tasks solved at the level of mobile servers, it is possible to illustrate how rather powerful applications work on the limited in the capabilities of mobile devices. The difficulties in creating applications have arisen because of the limitations associated with the variety of brands and models of mobile devices. To solve the emerging difficulties, it was decided to divide the application, designed for mobile devices, into parts. The first, the client, is engaged in the presentation of data, on the shoulders of the second, server, lies the problem of the organization of applied logic. As a result, the developer has a lot of advantageous opportunities for solving even the most difficult tasks.