Final answer:
Kruchten's 4+1 view model is a software engineering tool that describes the architecture of software systems with five concurrent views: logical, development, process, physical, and use cases. These views address the concerns of different stakeholders, ensuring a comprehensive architectural design.
Step-by-step explanation:
Kruchten's 4+1 view model is an approach used in software engineering to describe the architecture of software-intensive systems, based on the use of multiple concurrent views. The model organizes a description of the software architecture using five concurrent views, each of which addresses a specific set of concerns. Architects use this model to ensure that a complex system is adequately addressed from several perspectives simultaneously.
The views are as follows:
- Logical view: concerns the functionality that the system provides to end-users.
- Development view: illustrates the system from a programmer's perspective and is concerned with software management.
- Process view: deals with the dynamic aspects of the system, explains the system processes and how they communicate.
- Physical view: depicts the system from a system engineer's point of view; it is concerned with the topology of software components on the physical layer.
- Scenarios (+1): use case view, it represents the system from the user's perspective. This view is used to validate the completeness and correctness of the other four views.
The 4+1 view model is a tool that helps to ensure the robustness and completeness of software architecture by considering different facets of the system and how they interact.