There is more to IT than system development—the RUP is a good start, but you need more.
The EUP extends the RUP to cover the entire system lifecycle, including both production and system retirement.
The EUP also extends the RUP to cover cross-system issues. It was introduced in 1999 and has evolved since then; it will continue to evolve over time.
Many information technology (IT) departments are struggling to fulfill their primary mission—to deliver, operate, and support systems that enable the organization to meet its business goals. Business stakeholders want new systems that meet their needs, delivered on time and on budget. They want to pay for functionality once and then reuse it whenever appropriate, and they ...