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.
If the developed code has a lot of bugs and issues then the maintenance phase will be the most expensive phase and there is a potential that the business can also get effected,causing further expense to the client.evelopment-The actual development of the product, at first look it appears to be the most expensive part of the software development Testing-Testing the product to specification, and if it confirms to the requirement Operation and Maintenance-This consist of about 60% - 70% of the SDLC.