pdf417 c# Duplicate Objects in Visual C#

Print PDF417 in Visual C# Duplicate Objects

Duplicate Objects
Printing PDF-417 2d Barcode In C#.NET
Using Barcode creation for Visual Studio .NET Control to generate, create PDF 417 image in Visual Studio .NET applications.
www.OnBarcode.com
Scan PDF417 In Visual C#.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
First, you should identify duplicate objects that have basically the same data and relationships (like Resource and Employee). In this case, Employee can be eliminated in favor of Resource, since that term is used most often in the use case descriptions (and thus, presumably, most used by the end users). In most scenarios, the end users will have numerous terms for some of their concepts. It s your job, as part of the analysis process, to identify when multiple terms really refer to the same concepts (objects) and to clarify and abstract the appropriate meaning.
Encode Code-128 In C#
Using Barcode maker for .NET Control to generate, create Code128 image in VS .NET applications.
www.OnBarcode.com
Generate Matrix In C#.NET
Using Barcode generation for .NET framework Control to generate, create 2D image in VS .NET applications.
www.OnBarcode.com
Trivial Objects
Barcode Creation In C#.NET
Using Barcode generation for .NET framework Control to generate, create Barcode image in .NET framework applications.
www.OnBarcode.com
QR-Code Generation In Visual C#
Using Barcode maker for .NET Control to generate, create QR Code 2d barcode image in .NET framework applications.
www.OnBarcode.com
The Role object may not be required either. Fundamentally, a Role is just a string value, presumably with an associated key value. This is the specific scenario for which the NameValueListBase class in the CSLA .NET framework is designed. That base class makes it easy to implement name/value lists.
Create Data Matrix In C#
Using Barcode creator for VS .NET Control to generate, create DataMatrix image in VS .NET applications.
www.OnBarcode.com
MSI Plessey Generation In Visual C#
Using Barcode generator for Visual Studio .NET Control to generate, create MSI Plessey image in .NET framework applications.
www.OnBarcode.com
Tip
PDF417 Generator In None
Using Barcode generation for Word Control to generate, create PDF 417 image in Office Word applications.
www.OnBarcode.com
PDF417 Drawer In VB.NET
Using Barcode printer for Visual Studio .NET Control to generate, create PDF 417 image in .NET framework applications.
www.OnBarcode.com
My characterization of the Role value is based on the use cases assembled earlier. If you intuitively feel that this is overly simplistic or unrealistic, then you should revisit the use cases and your users to make sure that you haven t missed something. For the purposes of this book, I ll assume that the use cases are accurate and that the Role field really is a simple name/value pair.
PDF 417 Recognizer In VS .NET
Using Barcode scanner for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Creating UCC-128 In VS .NET
Using Barcode drawer for Reporting Service Control to generate, create EAN / UCC - 13 image in Reporting Service applications.
www.OnBarcode.com
Note that I m not suggesting the elimination of the RoleEdit class. While you can use NameValueListBase to create read-only name/value lists, you use RoleEdit and RoleEditList to edit the role data. They can t be automated away like a simple name/value pair. Like the process of removing duplicates, the process of finding and removing trivial objects is as much an art as it is a science. It can be the cause of plenty of healthy debate!
Code 39 Full ASCII Recognizer In C#.NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Generate Barcode In Java
Using Barcode creation for Android Control to generate, create Barcode image in Android applications.
www.OnBarcode.com
Overly Complex Relationships
Barcode Maker In None
Using Barcode printer for Microsoft Excel Control to generate, create Barcode image in Office Excel applications.
www.OnBarcode.com
Code 128 Code Set B Printer In None
Using Barcode creator for Software Control to generate, create Code 128B image in Software applications.
www.OnBarcode.com
Although it s certainly true that large and complex applications often have complex relationships between classes and objects, those complex relationships should always be reviewed carefully. As a general rule, if relationship lines are crossing each other or wrapping around each other in a diagram like Figure 3-3, you should review those relationships to see if they need to be so complex. Sometimes, it s just the way things have to be, but more often, this is a sign that the object model
Paint UCC-128 In Objective-C
Using Barcode maker for iPhone Control to generate, create EAN128 image in iPhone applications.
www.OnBarcode.com
Creating UPC Symbol In None
Using Barcode drawer for Online Control to generate, create UCC - 12 image in Online applications.
www.OnBarcode.com
CH APT ER 3 O BJECT -O RIEN TED A PPLI CA TI O N D ESI GN
Create Data Matrix In .NET
Using Barcode creator for ASP.NET Control to generate, create Data Matrix image in ASP.NET applications.
www.OnBarcode.com
Making Barcode In Java
Using Barcode maker for BIRT Control to generate, create Barcode image in BIRT applications.
www.OnBarcode.com
needs some work. Though relying on the aesthetics of a diagram may sound a bit odd, it is a good rule of thumb. In this case, there s a pretty complex relationship between Project, ProjectResources, Resource, and ResourceAssignments. It is, in fact, a circular relationship, in which all these objects refer to the other objects in an endless chain. In a situation like this, you should always be looking for a way to simplify the relationships. What you ll often find is that the object model is missing a class: one that doesn t necessarily flow directly from the use cases, but is required to make the object model workable. The specific problem caused by the circular relationship in Figure 3-3 becomes apparent when an object is to be loaded from the database. At that time, it will typically also load any child objects it contains. With an endless loop of relationships, that poses a rather obvious problem. There must be some way to short-circuit the process, and the best way to do this is to introduce another object into the mix. In the object model thus far, what s missing is a class that actually represents the assignment of a resource to a project. At this point, there s no object responsible for assigning a resource to a project, so an entire behavior from the use cases is missing in the object model. Additionally, data described in the use cases isn t yet reflected in the object model, such as the role of a resource on a particular project, or the date that the resource was assigned to a project. These data fields can t be kept in the Project object, because a project will have many resources filling many different roles at different times. Similarly, they can t be kept in the Resource object, because a resource may be assigned to many projects at different times and in different roles.
Copyright © OnBarcode.com . All rights reserved.