Implementation is the carrying out, execution, or practice of a plan, a method, or any design, idea, model, specification, standard or policy for doing something. As such, implementation is the action that must follow any preliminary thinking in order for something to actually happen. (Rouse, M. 2016)
Basically, implementation is the phase in which the system is used, when the purpose and requirements are fulfilled and it is ready to be deployed. In order for an implementation to be successful, it is important to follow a series of steps and planning stages a priori. There are many methodologies to choose from; however, it is certain that most failed projects mean lack of planning stages.
Webinar on how to implement successfully
It is important to keep the target market or user in mind whenever software implementations are made.
Resources to learn more
http://searchcrm.techtarget.com/definition/implementation