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In manufacturing, changeover is the process of converting a line or machine from running one product to another. Changeover times can last from a few minutes to as much as several weeks in the case of automobile manufacturers retooling for new models.
Big bang adoption or direct changeover is when a new system is adopted instantly, with no transition period between the old and new systems. [1] [2] [3]When a new system needs to be implemented in an organization, there are three different ways to adopt this new system: the big bang adoption, phased adoption and parallel adoption.
Pace of change; If the new system is designed to deal with new requirements, such as business process reengineering, the speed at which the organization is changing over to the new processes or attempting to meet other new requirements. Local design needs; The system might need to be adjusted to the users needs.
The transition process begins as leading presidential contenders forming a transition team to start making preliminary plans for building an administration and assuming the presidency should they be elected. This can take place at any time of the candidate's choosing.
Phased implementation is a method of System Changeover from an existing system to a new one that takes place in stages. [1] [2] [3] Other concepts that are used are: phased conversion, phased approach, phased strategy, phased introduction and staged conversion. Other methods of system changeover include direct changeover and parallel running.
Parallel running is a strategy for system changeover where a new system slowly assumes the roles of the older system while both systems operate simultaneously. [ 1 ] [ 2 ] This conversion takes place as the technology of the old system is outdated so a new system is needed to be installed to replace the old one. [ 3 ]
In chip design, ECO is the process of inserting a logic change directly into the netlist after it has already been processed by an automatic tool. Before the chip masks are made, ECOs are usually done to save time, by avoiding the need for full ASIC logic synthesis , technology mapping, place , route , layout extraction , and timing verification .
Within quality management systems (QMS) and information technology (IT) systems, change control is a process—either formal or informal [1] —used to ensure that changes to a product or system are introduced in a controlled and coordinated manner. It reduces the possibility that unnecessary changes will be introduced to a system without ...