The second step of closing a project is to go live with the deliverables. This commonly occurs in computer systems work. The installation can involve phases, cutovers, or some other rollout strategy. In other cases, it involves nothing more than flipping a switch. Either way, some event or activity turns things over to the client. This installation triggers the beginning of a number of close-out activities that mostly relate to documentation and report preparation. After installation is complete, the deliverables move to support and maintenance, and the project is officially closed.
There are four popular methods to install deliverables, and the subsections that follow discuss them.
The phased approach decomposes the deliverable into meaningful chunks and implements the chunks in the appropriate sequence. This approach would be appropriate in cases where resource limitations prevent any other approach from being used.
The cut-over approach replaces the old deliverable with the new deliverable in one action. To use this approach, the testing of the new system must have been successfully completed in a test environment that is exactly the same as the production environment.
In the parallel approach, the new deliverables are installed while the old deliverables are still operational. Both the old and the new deliverables are simultaneously in production mode. In cases where the new system might not have been completely tested in an environment exactly like the production environment, this approach will make sense. It allows the new system to be compared with the old system on real live data.
In the by-business-unit approach, the new deliverables are installed in one business unit at a time, usually in the chronological order that the system is used. Like the phased approach, this approach is appropriate when resource constraints prohibit a full implementation at one time. Similar to the by-business-unit approach would be a geographic approach where the system is installed at one geographical location at a time. This facilitates geographic differences, too.
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