Whether companies are large or small, an ASP model saves time and money, and simplifies ongoing system reliability and support. Application Service Providers (ASPs) deliver and manage applications and computer services, generally on a rental basis, from remote data centers to multiple users via the Internet or a private dedicated network. Most industry experts agree ideal companies who had adopted ASPs are small and mid-sized organizations, but the fact remains that even the larger corporations are increasingly moving towards ASP models for their future expansion. With the help of an ASP, small and mid-sized organizations can deploy enterprise applications without making massive investments in systems, software, technology equipment, deployment time, physical space or IT personnel. These businesses can now benefit from the efficiencies of an integrated, enterprise application which were previously not cost-effective to develop and use within their budgets. With business operations now increasingly dependent on complex and rapidly changing information systems, IT managers are embracing the ASP approach to ensuring secure, business-critical applications. Large companies have shown equal interest to implement ASP models to reduce deployment times for critical enterprise applications at an affordable cost, particularly since the resource requirements for supporting these systems have grown exponentially.