With regard to the contents of the reference three-tier architecture

Attendance\Attendance\Attendance.sln
..........\..........\Attendance.suo
..........\..........\BLL\Adept.cs
..........\..........\...\attAction.cs
..........\..........\...\BLL.csproj
..........\..........\...\BLL.csproj.user
..........\..........\...\company.cs
..........\..........\...\Employee.cs
..........\..........\...\Holiday.cs
..........\..........\...\ManagerInfo.cs
..........\..........\...\State.cs
..........\..........\...\WorkTime.cs
..........\..........\...\bin\Debug\BLL.dll
..........\..........\...\...\.....\BLL.pdb
..........\..........\...\...\.....\DAL.dll
..........\..........\...\...\.....\DAL.pdb
..........\..........\...\...\.....\DBUtility.dll
..........\..........\...\...\.....\DBUtility.pdb
..........\..........\...\...\.....\Model.dll
..........\..........\...\...\.....\Model.pdb
..........\..........\...\obj\BLL.csproj.FileListAbsolute.txt
..........\..........\...\...\Debug\BLL.dll
..........\..........\...\...\.....\BLL.pdb
..........\..........\...\...\.....\ResolveAssemblyReference.cache
..........\..........\...\Properties\AssemblyInfo.cs
..........\..........\DAL\Adept.cs
..........\..........\...\attAction.cs
..........\..........\...\company.cs
..........\..........\...\DAL.csproj
..........\..........\...\Employee.cs
..........\..........\...\Holiday.cs
..........\..........\...\ManagerInfo.cs
..........\..........\...\State.cs
..........\..........\...\WorkTime.cs
..........\..........\...\bin\Debug\DAL.dll
..........\..........\...\...\.....\DAL.pdb
..........\..........\...\...\.....\DBUtility.dll
..........\..........\...\...\.....\DBUtility.pdb
..........\..........\...\...\.....\Model.dll
..........\..........\...\...\.....\Model.pdb
..........\..........\...\obj\DAL.csproj.FileListAbsolute.txt
..........\..........\...\...\.ebug\DAL.dll
..........\..........\...\...\.....\DAL.pdb
..........\..........\...\...\.....\ResolveAssemblyReference.cache
..........\..........\...\Properties\AssemblyInfo.cs
..........\..........\.BUtility\DbHelperSQL.cs
..........\..........\.........\DBUtility.csproj
..........\..........\.........\DBUtility.csproj.user
..........\..........\.........\bin\Debug\DBUtility.dll
..........\..........\.........\...\.....\DBUtility.pdb
..........\..........\.........\obj\DBUtility.csproj.FileListAbsolute.txt
..........\..........\.........\...\.ebug\DBUtility.dll
..........\..........\.........\...\.....\DBUtility.pdb
..........\..........\.........\Properties\AssemblyInfo.cs
..........\..........\Lib\Lib.csproj
..........\..........\...\bin\Debug\Lib.dll
..........\..........\...\...\.....\Lib.pdb
..........\..........\...\obj\Lib.csproj.FileListAbsolute.txt
..........\..........\...\...\Debug\Lib.dll
..........\..........\...\...\.....\Lib.pdb
..........\..........\...\Properties\AssemblyInfo.cs
..........\..........\Model\Adept.cs
..........\..........\.....\attAction.cs
..........\..........\.....\company.cs
..........\..........\.....\Employee.cs
..........\..........\.....\Holiday.cs
..........\..........\.....\ManagerInfo.cs
..........\..........\.....\Model.csproj
..........\..........\.....\State.cs
..........\..........\.....\WorkTime.cs
..........\..........\.....\bin\Debug\Model.dll
..........\..........\.....\...\.....\Model.pdb
..........\..........\.....\obj\Model.csproj.FileListAbsolute.txt
..........\..........\.....\...\Debug\Model.dll
..........\..........\.....\...\.....\Model.pdb
..........\..........\.....\Properties\AssemblyInfo.cs
..........\..........\Web\Adept.aspx
..........\..........\...\Adept.aspx.cs
..........\..........\...\AttendanceSetting.aspx
..........\..........\...\AttendanceSetting.aspx.cs
..........\..........\...\Card.aspx
..........\..........\...\Card.aspx.cs
..........\..........\...\Default.aspx
..........\..........\...\Default.aspx.cs
..........\..........\...\Employee.aspx
..........\..........\...\Employee.aspx.cs
..........\..........\...\Login.aspx
..........\..........\...\Login.aspx.cs
..........\..........\...\menu.aspx
..........\..........\...\menu.aspx.cs
..........\..........\...\Statistics.aspx
..

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