How model view controller helps your business applications

Model-View-Controller (MVC) is a software architecture pattern, which separates the representation of information from the user’s interaction with it.  MVC was first introduced into the Smalltalk-80 programming environment by Trygve Reenskaug.

It divides an application into three areas: processing, output, and input so that the human computer interface can be done effectively. Since 1970’s, the MVC design idiom has become commonplace, especially in object-oriented systems. MVC devices an integrated application into three components, model, views, and controllers.

  • The model consists of logic, business rules, application data, and the functions, which simply means the model contains the core functionality and data.
  • A view can be any output representation of data, such as a chart or a diagram, which simply means Views display information to the user.
  • The controller mediates input, converting it to commands for the model or view, which simply means Controllers handle user input.

“The central idea behind the Model–View–Controller (MVC) is coded readability and separation of concerns. Interactive applications with a flexible human-computer interface.”

Model View Controller (MVC) architecture

Why should Design patterns be used?

As we know it describes a proven solution to a recurring design problem while human computer interaction, placing emphasis on the problem context and the forces surrounding the problem. It also gives emphasis on the consequences and impact of the solutions.

  • Proven Solutions: The junior developers can get benefit by tapping the knowledge, experience, and insights of senior developers, who have used these patterns successfully in the project accomplishments.
  • Reusable and Widely used: In case of any problem you are facing, you don’t have to invent a new solution; only you have to do is to follow the pattern (to enforce the principle of DRY (Don’t Repeat Yourself)) and adapt it as necessary.
  • Easy and Expressive: You can use to express better-quality solutions succinctly following the design patterns as it provides a common vocabulary of the specific solution.

There is something special involved in MVC that’s why the respected framework like Ruby On Rails and Zend Framework use the principles. The business logic simply means the calculation of logical processes of an application. It works like a calculator for calculating the dates. This is just an example of business logic.

The nutshell is the MVC framework that runs on Smarty, or its own template engine is reusable and widely acceptable. The DRY (Don’t Repeat Yourself) principle is stated as “Every piece of knowledge must have a clear, single, and an authoritative representation within a system which the developer can re-use the “code as a template”, and can modify it accordingly.”

The control flow generally works as follows:

  • Firstly, the user interacts with the user interface by hardware means. This is simply can be done through pressing a button or other such inputs.
  • The controller handles the input event from the user’s perspective. This makes the user interface more interactive through registered handlers or callbacks.
  • The controller accesses the model, possibly updating it in a way appropriate to the user’s action. In this section, the user simply gets updated from the application point of view.  The user can see refreshed information on the web page.
  • The Complex controllers are often structured using the command pattern to encapsulate actions and simplify extension.
  • A view uses the model to generate an appropriate user interface
  • The user interface waits for further user interactions, which begins the cycle anew.

Let’s have a look on top features of ASP.NET MVC 4

It is a framework for building scalable, standards-based web applications using well-established design patterns and the power of ASP.NET and the .NET Framework.

ASP.NET MVC 4 Top Features

  • New mobile project template
  • Many new features to support mobile apps
  • Enhanced support for asynchronous methods
  • ASP.NET Web Application Programming Interface
  • Refreshed and modernized default project templates

Let’s Us Know More About The New Features In ASP.NET MVC 4
Features Introduced in the ASP.NET MVC 4 latest release.

ASP.NET MVC 4 includes ASP.NET Web API, a new framework for creating HTTP services. This enables to reach a broad range of clients including browsers and mobile devices. It is also an ideal platform for building restful services. Going through the wide range of features we can analyze the difference how the latest version of ASP.NET MVC 4 is changing the face of development Processes.

ASP.NET Web API includes support for the following features:

  • Template for Web API project: The developer can select the new Web API project form the New MVC 4 Project wizard to quickly get up and running with ASP.NET Web API.
  • Proactive Scaffolding:  The developer can use the Add Controller dialog to speedily scaffold a web API controller based on an Entity Framework based model type.
  • Strategic Model binding and validation: It provides an easy way to extract data from various parts of an HTTP request and convert those message parts into .NET objects. It can be used by the Web API actions.
  • Unique Features of Filters: It supports filters. It is very helpful for actions, authorization, and exception handling.
  • Composition of Query: The developer can use the [Queryable] filter attributes on an action that returns IQueryable to enable support for querying your web API via the OData query conventions.
  • Testability Improvement: Rather than setting HTTP details in static context objects, web API actions work with instances of HttpRequestMessage and HttpResponseMessage. Create a unit test project along with your Web API project to get started quickly writing unit tests for your Web API functionality.
  • Unified Code-based configuration: ASP.NET Web API configuration is accomplished solely through code, leaving your config files clean. Use the provide a service locator pattern to configure extensibility points.
  • HTTP programming model: The user can directly access and manipulate HTTP requests and responses in Web APIs using a new, strongly typed HTTP object model. Through the new HttpClient type programming model and HTTP pipeline is symmetrically available on the client.
  • Support for Routes Capabilities: ASP.NET Web API supports the full set of route capabilities of ASP.NET Routing, including route parameters and constraints. Additionally, use simple conventions to map actions to HTTP methods.
  • Strategically Content Negotiation: For the right format of data being returned from a web API, this can be determined by the client and server, when they work together. It provides default support for XML, JSON, and Form URL-encoded formats and you can extend this support by adding your own formatters, or even replace the default content negotiation strategy.
  • Improved support for Inversion of Control (IoC) containers: The developer can use ASP.NET Web API, which now provides great support for IoC containers through an improved dependency resolver abstraction.
  • Self-host: The developer can use Web APIs which can be hosted in users own process in addition to IIS while still using the full power of routes and other features of Web API.
    Help and test pages Creation: Due to this feature, the developer can easily build custom help and test pages for your web APIs by using the new IApiExplorer service to get a complete runtime description of your web APIs.
  • Easy Monitoring and diagnostics: The developer can use ASP.NET Web API now because it provides lightweight tracing infrastructure that makes it easy to integrate with existing logging solutions such as System. Diagnostics, ETW, and third party logging frameworks. You can enable tracing by providing an ITraceWriter implementation and adding it to your web API configuration.
  • Generating Links to Resources: The developer can use the ASP.NET Web API UrlHelper to generate links to related resources in the same application.
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