According to Scott Guthrie at Microsoft, "MVC is a framework methodology that divides an application's implementation into three component roles: models, views, and controllers.
 依照微软ScottG Guthrie 的表述，"MVC 是一个用来将一个程序的实现分为三个部分（模型、视图、和控制器）的框架。

• "Models" in a MVC based application are the components of the application that are responsible for maintaining state. Often this state is persisted inside a database (for example: we might have a Product class that is used to represent order data from the Products table inside SQL).

            在一个MVC构架的应用程序里，模型负责维护状态。 通常情况下，这个状态被保存在数据库中（例如：我们可能通过一个Product类来再现保存在SQL数据库内Products表中的数据。

• "Views" in a MVC based application are the components responsible for displaying the application's user interface. Typically this UI is created off of the model data (for example: we might create an Product "Edit" view that surfaces textboxes, dropdowns and checkboxes based on the current state of a Product object).

            "视图"在一个MVC构架的应用里负责展示整个应用的用户界面。Typically this UI is created off of the model data （例如：我们依照一个Product对象的状态创建一个由文本框、下拉框和复选框组成的视图）

• "Controllers" in a MVC based application are the components responsible for handling end user interaction, manipulating the model, and ultimately choosing a view to render to display UI. In a MVC application the view is only about displaying information - it is the controller that handles and responds to user input and interaction.

            控制器在一个MVC构架的应用里负责处理用户交互，操纵模型并且最终选择一个视图将结果呈现给用户。在一个MVC程序中视图仅负责呈现信息－处理和相应用户的输入和交互是控制器的职责。

One of the benefits of using a MVC methodology is that it helps enforce a clean separation of concerns between the models, views and controllers within an application. Maintaining a clean separation of concerns makes the testing of applications much easier, since the contract between different application components are more clearly defined and articulated.

The MVC pattern can also help enable red/green test driven development (TDD) - where you implement automated unit tests, which define and verify the requirements of new code, first before you actually write the code itself."

This tutorial covers an introduction to the MVC pattern using Visual Basic. It shows you want software is needed to work with the model. It also includes a brief overview of the URL routing assumptions that are a foundation to the implementation of the pattern. Finally, a sample application is created to demonstrate the fundamentals of this new web-application model.

       一句话，就是继承的表示。是is-a的关系。
 

依赖（Dependency）:

       依赖是一种使用关系，它说明一个事物规范的变化可能影响到使用它的另一个事务，但反之则不然。依赖关系的表示法是虚线箭头，箭头尾部的元素依赖箭头头部的元素，是use-a的关系。

关联（Association）：

       用于描述类与类之间的连接，是has­-a的关系。

聚合（Aggregation）：

       聚合是关联的特例。如果类与类之间的关系具有“整体和局部”的特点，则把这样的关联称为聚合。它往往有“包含”，“由……组成”的意思。

资料来源：http://www.cnblogs.com/goodcandle/archive/2007/05/30/258015.html

a.Local processing mode refers to report processing that is performed by the ReportViewer control in the client application. All report processing is performed as a local process using data that your application provides. To create the reports used in local processing mode, you use the Report project template in Visual Studio. For more information, see Configuring ReportViewer for Local Processing.
(Local processing mode 表示由客户端应用程序中的ReportViewer Control来负责报表的生成。报表生成将由一个本地进程负责，数据使用客户端应用程序提供的数据。创建Local processing mode 报表可以使用Visual Studio 的Report Project 模板.)

To use a ReportViewer control in your application, you must know how to add the control to your project form or Web page, configure the control to use a local report definition or server report, update data source references, and test and deploy the reports and control in your application. Walkthroughs are provided to help you learn these core skills. For more information, see Samples and Walkthroughs.
(想要在你的应用程序中使用Reportviewer control你必须知道怎样添加控件到你的窗体或者WEB页上，怎样配置控件是使用Server Mode还是Local Mode，怎样配置数据源，怎样测试和发布你的报表和应用程序。微软提供了一些Walkthroughs来帮助你学习这些核心技能。）