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What pattern(s) to use for this system ? HRIS/Payroll system

Hello! I am currently working on a Human Resource Information System(HRIS)/Payroll system. Our professor only require us to use Strategy, Decorator and Observer patterns. Any ideas what pattern to be use, how can ...

Feb 26, 2013 by mj emaznol 50 Community Rank

50 Last: Mar 08, 2013 by Dennis Tucker 103 Community Rank

96.7

Views	575
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Factory or Strategy or Builder Pattern

I've got an application that creates and sends packets. A packet consists of one or more document objects. e.g. Packet1 = [ DocA, DocB, DocB, DocB ] Packet2 = [ DocB, DocB, DocC ] Packet3 = [ DocC, DocB, DocA ] ...

Feb 16, 2013 by Kip Keino 50 Community Rank

50 Last: Feb 19, 2013 by Kip Keino 50 Community Rank

Factory Pattern Strategy Pattern Builder Pattern

Views	628
Answers	1
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Adapter or Proxy?

In a case where there are 3 classes and i need to choose 1 of the class to use. Then by using a standard method, i can access the file. The reason of having 1 standard method is to prevent re-writing of codes if ...

Jan 08, 2013 by Christopher Lim 54 Community Rank

94.1 Last: Jan 10, 2013 by Vikram Karumbaiah 50 Community Rank

Proxy Pattern Adapter Pattern

Views	954
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VS 2008 - Product location management with strategy pattern

Hi all experts! I'm currently developing a WinMobile application for picking system. The user must have the possibility to change the positions of the products on the shelf (using the built in barcode reader); I ...

Dec 14, 2012 by BARBON DARIO 50 Community Rank

Strategy C#

Views	771
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Optimal Design Pattern to generate a file

The process to generate a file is : 1. get header 2. get content 4. generate file 6. download file for exmple, there are two types: 1. txt file 2. xml file the get header function is same. txt file and xml file use ...

Oct 18, 2012 by Oo Hml 50 Community Rank

50 Last: Nov 07, 2012 by Vivekananda P 50 Community Rank

C# Design Pattern

Views	1.5K
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Strategy Pattern vs Decorator Pattern

I am trying to understand the difference between Strategy and Decorator Pattern. It seems like both are serving the same purpose , in fact decorator pattern is more preferred. If anybody who can let me understand ...

Nov 06, 2012 by Sukesh Marla 48 Community Rank

0 Last: Nov 07, 2012 by Vivekananda P 50 Community Rank

Views	1.7K
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Two questions: Interface and Encapulation

What qualities a good Interface has??? I have a class which has many properties every member function uses some of these properties. member function signature are as shown Class Signal { ...

Jul 01, 2012 by Punit Asdf 63 Community Rank

95.5 Last: Aug 04, 2012 by Michael Lopez 55 Community Rank

94.1

Interface Encapulation C# VB.NET

Views	2.7K
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What design pattern is best for the following scenario?

I have 3 car rental agencies. Each agency requires the data in XML, but in a different format, for example: Agency 1 <Rental> <Customer> <FirstName>test</FirstName> ...

Jul 17, 2012 by Xaisoft S 55 Community Rank

94.1 Last: Jul 20, 2012 by Michael Lopez 55 Community Rank

94.1

C# Builder Pattern Interfaces Dependency Injection

Views	2.5K
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What design pattern(s) to use to build a extractor for a flat file based on a specification?

I have a flat file where each row has a specification. Say the first row specification level 100 a header row and all 200s are data rows and level 199 is a file summary. I have created a data table that ...

Jun 16, 2011 by Tony Blogumas 50 Community Rank

50 Last: Mar 15, 2012 by Tony Blogumas 50 Community Rank

C# Business Tier Flat File Parser

Views	5.5K
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Singleton as a static class

I was wondering why are Singletons not implemented as a static class with a static public Instance property?

Feb 02, 2010 by Juan Perez 129 Community Rank

96.7 Last: Jan 26, 2012 by Joness K 50 Community Rank

Singleton Pattern Gang of Four

Views	14.4K
Answers	5
Votes	4

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Strategy Pattern in Design Pattern Framework 4.0

The ShippingMethod in the 'Patterns in Action' shopping cart seems to be using also Factory Pattern. Could anyone confirm ...

Jan 23, 2012 by Shanglin Hsieh 50 Community Rank

Strategy Pattern Factory Pattern Design Pattern Framework

Views	1.5K
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Question - Strategy Design Pattern

Hi All, Following is the structure of my class public abstract class BaseUser { protected List<Perm> permissions; public abstract void AddPerm(Perm perm); } public class NormalUser : ...

Dec 28, 2011 by A Solvent 50 Community Rank

50 Last: Jan 05, 2012 by Sivakumar Sivaprakasam 50 Community Rank

Strategy Pattern

Views	1.9K
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What pattern to use for caching?

Let's assume there is a requirement to cache calls to get products from database for N minutes. What design / patten would you recommend? In what layer it could be ...

Sep 21, 2011 by Michael S 50 Community Rank

50 Last: Nov 01, 2011 by Tarriq Ferrose Khan 80 Community Rank

96.3

Caching

Views	4K
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Design Pattern Training Videos

Have you guys though about doing a video series on design patterns? I've come across one website that does them, but they refer to Java! It would make alot of sense if you guys did consider ...

Jul 15, 2010 by Peter St Angelo 88 Community Rank

96.5 Last: Oct 21, 2011 by Itman Man 50 Community Rank

Video Design Pattern Framework NET 4.0

Views	14.6K
Answers	8
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Strategy again. This time: Manipulating a View (that has different "Modes")

Hi there again, It's been some time and my last question was aimed at the strategy pattern. I wanted to know how I can make use of this pattern to replace a switch/case with something more SOLID. :) This time, I ...

Aug 30, 2011 by Christian Jacob 555 Community Rank

99.9 Last: Oct 06, 2011 by Tarriq Ferrose Khan 80 Community Rank

96.3

VB.NET Strategy Pattern Best Practices MVP Winforms

Views	2.1K
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How to avoid if else condition is there any pattern to use ?

How to avoid if else condition is there any pattern to use ? ...

Sep 06, 2011 by John Prasad 50 Community Rank

50 Last: Sep 10, 2011 by Rahhal Taoussi 60 Community Rank

95.3

Views	2.6K
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Help to decide appropriate pattern to be implement.

What is the best solution to resolve the following problem? Problem: I would like to implement generic business logic (method) which can be invoked by any methods irrespective input type. Scenario: ...

Aug 29, 2011 by Nirav Valera 50 Community Rank

50 Last: Aug 30, 2011 by Pubudu Thilakarathna 50 Community Rank

Views	1.8K
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View models and accessing data in the presentation tier

I see that in the pattern's in action source you are using a Provider to sit over your data access as you are using the Provider Model to hot swap DALs based on config settings. My current project we are using an ...

Jul 28, 2011 by Ryan Andrus 60 Community Rank

95.3 Last: Aug 26, 2011 by Tarriq Ferrose Khan 80 Community Rank

96.3

Views	2.1K
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Need some good .NET Design Pattern interview questions

Hello. I will be interviewing a few candidates for a senior architecture position that we have open at our company. As an architect we expect them to be familiar with commonly used .NET Design Patterns. Does anyone

Mar 25, 2010 by Craig Johnston 128 Community Rank

96.7 Last: Aug 19, 2011 by Danut Prisacau 108 Community Rank

96.7

Design Patterns Interview Questions

Views	18.1K
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With which Design Pattern would you recommend I start?

Hi: I am from México, sorry for my English. I am a student in Computer Systems and I don't know where to start with Design Patterns. My professor taught some of Singleton and Factory Patterns, but I ...

Jul 28, 2011 by Alberto Chargoy 60 Community Rank

95.3 Last: Jul 29, 2011 by Rajesh Pillai 1,354 Community Rank

100.0

Design Patterns Study Beginner

Views	2.7K
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Interpretation Setup Consultation (C#)

Hello. This is my first question ever. Party right here. Now, onto the question! Background information: I am creating a framework for a game. It is a M(ulti) U(ser) D(ungeon) or a text based imagination driven ...

Jul 25, 2011 by Karl Wessels 63 Community Rank

95.5 Last: Jul 28, 2011 by Karl Wessels 63 Community Rank

95.5

C# Framework Interpretation Gaming

Views	2.5K
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Is there still a future for NHibernate?

I was just wondering with the new release of Entity Framework 4.1 which supports Code First, Data First, and Model First does it still makes sense to start a web project with NHibernate? I know it has many ...

Apr 19, 2011 by Sunil Patel 50 Community Rank

50 Last: Apr 26, 2011 by Robert Blixt 1,128 Community Rank

99.9

NHibernate Entity Framework

Views	2.8K
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Do you feel guilty when using a C# switch statement?

Now that I am familiar with Design Patterns I am beginning to feel guilty whenever I use the C# switch statement. It is almost like switches are a 'code smell' and that a better solution is possible ...

Mar 29, 2011 by John Telstra 56 Community Rank

94.4 Last: Mar 29, 2011 by Robert Blixt 1,128 Community Rank

99.9

C# switch Code Smells

Views	2.9K
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Best practice: Store images in DB or on File System?

We are building an ASP.NET MVC web application where users continually upload images -- several hundreds per day. The images are somewhere between 200 - 800K. The two alternatives, as I see it, is ...

Mar 27, 2011 by Tim Sawyer 76 Community Rank

96.2 Last: Mar 29, 2011 by Dan Corbett 80 Community Rank

96.3

Best Practices Database File System Image Storage

Views	12.4K
Answers	3
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Chain of responsibility pattern

Hi Could anyone please explain the real-world scenarios in which Chain-of-Responsibility is actually used? ...

Feb 15, 2011 by Anup R 50 Community Rank

50 Last: Mar 28, 2011 by Daniel Musiał 60 Community Rank

95.3

Chain of Responsibility Pattern

Views	4.5K
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Difference between Strategy and Inversion of Control (IOC)?

Hi, When getting into Design Patterns I first studied the GoF patterns, which includes Strategy. After that I started tackling ASP.NET MVC in which the Inversion of Control ...

Mar 23, 2011 by John Telstra 56 Community Rank

94.4 Last: Mar 23, 2011 by Robert Blixt 1,128 Community Rank

99.9

Strategy Pattern Inversion of Control Dependency Injection

Views	2.9K
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Strategy Design Pattern usage in .NET

I have a quick question: How is the Stategy Pattern used ...

Mar 06, 2011 by Rajeev Kumar 250 Community Rank

96.9 Last: Mar 08, 2011 by Robert Blixt 1,128 Community Rank

99.9

Strategy Pattern .NET

Views	4.4K
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Steps to Architecting a Solution

Is there a definitive set of steps you should take to architect a solution? For instance, start with the use cases to determine the data that needs to be stored and their relationships, build the database, ...

Mar 07, 2011 by Daniel Hicks 60 Community Rank

95.3 Last: Mar 08, 2011 by Rajesh Pillai 1,354 Community Rank

100.0

Architecture Multi Tier Multi Layer

Views	2.5K
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Correcting Code Smells with Design Patterns?

I think I understand what a code smell is (don't you love that term? -- reminds me of fish for some reason). Here is what Wikipedia has to say about these smells: A code smell is any symptom in the source ...

Mar 04, 2011 by Leo Benson 122 Community Rank

96.7 Last: Mar 06, 2011 by Rajesh Pillai 1,354 Community Rank

100.0

Code Smells Refactoring Design Patterns

Views	2.8K
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What Design Pattern to use for collections of parsers

I have string and I need to pass it through different parsers and eventually get the processed string. Lets say, I have string s = "<input type='text' /> some text <span>hello</span> ...

Jan 29, 2011 by Igor M 50 Community Rank

50 Last: Feb 17, 2011 by Stephanie Schwinn 50 Community Rank

Design Patterns Parsing

Views	3.5K
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