Within Enterprise Resource Planning (ERP) and Customer Relationship Management (CRM), many companies have enjoyed a blossoming of open source software. By harnessing the collective wisdom, experiences, expertise, and requirements, the model has ensured that needs have been rapidly met while the open source code has provided the wanted flexibility and low cost. Everything made possible through the Internet, which has enabled easy zero-cost distribution and improved global collaboration. By leveraging large user communities the software products have grown fast and made it possible for open source companies to challenge major proprietary vendors.