Upgrade or Decommission
The Upgrade or Decommissioning phase involves retiring or removing a software system from service. The software may then be replaced by new or upgraded software. This phase involves activities such as archiving the software, disposing or repurposing of the hardware, and notifying the users.
Factors influencing the decision to upgrade or replace software
Software may need to be upgraded when it starts impacting efficiency, productivity, scalability, ...
Measures to implement when upgrading software
The following should be considered when upgrading software to minimize the risks involved in the ...