4+1 View

Use Case view: Model The functional requirements of the system, describe the behavior of the system, and reveal what the system "is"

Logical view: Describes a system design model that contains the most important parts of the system structure, such as subsystems that the system decomposes into, subsystems decomposed into multiple classes, and the responsibilities, relationships, operations, and attributes of these elements

Process View: Describes the process by which the system breaks down into threads and processes, describes thread (process) communication modeling, etc.

Deployment view: Describes the physical hardware (including network) configuration of the running system, describes the computer, CPU, operating system, and interconnection of each node, and also includes the mapping between processes to nodes.

Implementation view: Describes the breakdown of the system at the time of building the subsystem (package), in particular, including which components are developed by which teams, as well as purchase, outsourcing, development progress and other content. The project manager should be most interested in this view.

4+1 View