Strategic systems planning
– Enterprise process models illustrate important business functions.
Business process redesign
– “As is” process models facilitate critical analysis (Current System). – “To be” process models facilitate improvement (Proposed System).
Systems analysis
* – Model the existing/current system including its limitations (logical DFD)
* – Model the target/proposed system’s logical requirements (processes and data flows needed regardless of how the system will be implemented- logical DFD)
* – Model candidate technical solutions (physical DFD)
* – Model the target technical solution (physical DFD)