Architecture :: Layered Web Application. XML As Data Storage?
May 4, 2010
I'm thinking of using 3 layered architecture in my web site.Kind of classic layers - Presentation, BL, DAL and BO - business objects, just like in this great article http://imar.spaanjaars.com/QuickDocId.aspx?quickdoc=416I will have 4 projects according to levels.I'm goung to store data in xml files and my question is where should those files be located? In App_Data folder of web site? Then how DAL will know path where to find files to parse?
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Feb 16, 2010
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Mar 2, 2010
guide in typical 4 layered architecture (having User Interface, Custom Types, Business Logic, Data Access Layer) do we follow some design pattern ? I am not clear what pattern it is or what pattern it should be called.
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I am a asp.net developer and don't know much about patterns and architecture.In my web applications I use 4 layers.Web site project (having web forms + code behind cs files, user controls + code behind cs files, master pages + code behind cs files)
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BusinessLogicLayer a class library (having all business logic, rules and all calls to DAL functions)
DataAccessLayer a class library( having just classes communicating to database.)
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I though it may be MVC or MVP but pages have there code behind files as well which are confusing me.
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Oct 27, 2010
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If this is correct, what benefit am I getting by wrapping a business class around the Repository? It seems like I am adding an extra layer for the sole purpose of avoiding calling the DataAccessLayer/Repository directly from the UI?
Is it okay for the UI to have access to my Data Access layer in order to read data from the database?
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Dec 23, 2010
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On a side note, I plan to store file names and any additional information in a SQL database and only query the disk when a user actually wants to download the file. This is how I plan on retrieving files:
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