All business and businesses are different they have different objectives different work plans different organization different direction etc a factor that most of the CRM solution providers already understand nowadays and apply to their CRM software Nevertheless an important factor that most of the CRM solution providers have forgotten is size There are big medium small tiny companies and even this classification can be broken into several subclassifications This factor creates a problem all these companies must use the same CRM solution it doesnt matter if a company is really big or minuscule the solution must be the sameMicrosoft identified this problem and created whats called a Choice Model Now if a company is in need for a CRM solution and they are big or small companies they can choose what they believe its the best Choice for them Heres a description of each model that Microsoft provides for your CRM needsOnPremiseThis is the traditional implementation