http://msmvps.com/blogs/laflour/archive/2009/01/28/sharepoint-tip-2-do-you-know-why-ootb-roles-must-be-customized.aspxSharePoint has predefined set of OOTB permissions level, such as: Full Control, Contributor, Designer, and etc. But those permissions not always provide you desired functionality – its either too wide or very narrow. Start out with a small set ofenCommunityServer 2008.5 SP2 (Build: 40407.4157)