Typically causes of change can be split into two categories: Internal and External.
No organization is an island and external forces are always influencing and interacting with its existence. Individuals and organizations may have very little ability to influence such external factors such as politics, culture, economy, societal changes, or technology. It is important to understand that if the change is the result of an external factor, accept the change, and then modify any internal processes or items that are affected by the external influence.
Internal factors are very numerous, as almost any item or event can influence change within an organization, but some of the more influential ones are employees, policies, organization structure, managerial, and financial. With internal causes of change we have the most ability to control and prepare the outcomes of such events. The benefits of this are numerous as we can prepare with education, communication, training, and support. These tools will help mitigate any negative outcomes which may occur as a result of the change.