Method

A method of software migration that involves using the existing and new systems simultaneously until the implementation is judged to be complete and satisfactory.

A software migration method that involves rolling out the new system to a small group of users for testing and evaluation. Once the test group has approved the system, it can be rolled out across the organization.

A software migration method that involves incremental implementation of a new system. A phased migration might be conducted either by implementing the entire new system in some locations or business units or by implementing separate modules of the system independently until the implementation is complete.

A method of testing where the old system and the new system are maintained simultaneously. The system results are compared to ensure that the new system is working properly.

A method where you purchase the best product for each application, often from different software providers. The intent is to get the best functionality for each process regardless of where you purchase it. For example, if the HRMS is purchased from one vendor, the recruiting system form another and a performance management system from yet a third vendor. A term used in relation to software products from different vendors. Usually used to describe options at the enterprise level and implies the integration of the best products within a market segment. For example, the best financial system, the best HR system, etc.