Nowadays, the use of integrated systems is considered essential for excellent business management. This type of system aids decision-making in any type and size of company, whether public or private. In view of this, this book presents two applied cases with the aim of fostering knowledge in the area of Systems Management, Marketing and Sales, specifically in healthcare businesses. The first study deals with the application of an ERP in a pharmaceutical company. The second looks at the use of CRM in an occupational health clinic.