A software consulting firm is tasked with developing a customized inventory management system for a manufacturing company. During the project planning phase, the consultants consider various methodologies and tools to streamline the development process and possibly eliminate certain phases of the traditional Systems Development Lifecycle $($SDLC$)$ to meet tight deadlines and reduce costs. Which of the following options can result in eliminating one or more phases of the Systems Development Lifecycle?

$($: $1)$

Using CASE $($Computer$-$Aided Software Engineering$)$ tools

Using Prototyping tools

Purchasing a software application package

All of the above