Segregating to 3 tiers from existing ASP.NET project
<p>In my asp.net project currently i have business logic and and data access code in two sub folders(BLL,DAL) which are itself located web site project's app_code folder. I need to segregate them to two separate projects(one project for business layer and one project for Data access code).</p>

<ol>
<li><p>How can I maintain connection strings necessary to Data access project which are currently in web.config file?(i.e if I choose Class library template for creating DAL and BLL projects)   </p></li>
<li><p>How can I maintain various other web.config key values that are currently used in BLL, DAL code files?</p></li>
<li><p>How can I deploy compiled project? (ie Web site project I am currently deploying bin folder to Staging> production but this way where should i put DAL.dll and BLL.dll and relevant config files)</p></li>
</ol>
