Bookoo is made by yard sale fans, for yard sale fans. 1  We started Bookoo so we could find the bargains we needed with less running around town and leaving more time for family. What it has become is a better way to buy and sell stuff with neighbors. 2  Bookoo brings neighbors together.
5.0 Conclusions. During the life of the system, the Operations and Maintenance Phase is the longest and most expensive as the information system provides the most value to the organization in this phase..0 Conclusions. During the life of the system, the Operations and Maintenance Phase is the longest and most expensive as the information system provides the most value to the organization in this phase.
Generally speaking, there are two types of maintenance in use: 1  Preventive or scheduled maintenance, where equipment or facilities are inspected, maintained and protected before break down or other problems occur. 2  Corrective maintenance where equipment is repaired or replaced after wear, malfunction or break down.