The preliminary investigation of a software project has been completed. Two different project teams have estimated the costs associated with the development and maintenance of a new system. One team based their estimates on the assumption that the waterfall system development process would be used for the project; the other team plans to follow the agile approach. A third option is to purchase off-the-shelf software that provides nearly all the benefits of a custom-built solution. Review the estimates below, and choose the best approach for the project: waterfall development, agile development, or off-the-shelf software implementation. Provide a solid rational for your choice. Identify any assumptions you must make in reaching your decision. Submit the assignment to Dropbox.