Which integration approach involves assembling system elements by subsets, and then integrating the subsets into the full system?

Which integration approach involves assembling system elements by subsets, and then integrating the subsets into the full system?

• A. Subset integration
• B. Bottom-up integration
• C. Incremental integration
• D. Model-based integration

Answer: (A)

Grouping elements into subsets and then integrating those subsets into the full system is the approach described. This subset integration method builds and validates small, coherent units first, then combines those units to form the complete system. It helps manage complexity by focusing on meaningful groupings and their interfaces before full integration. This differs from bottom-up integration, which starts with the smallest components and builds up, and from incremental integration, which adds pieces in steps without necessarily tying them to predefined subsets. Model-based integration uses models to drive the process rather than the physical assembly of predefined subsets.

Grouping elements into subsets and then integrating those subsets into the full system is the approach described. This subset integration method builds and validates small, coherent units first, then combines those units to form the complete system. It helps manage complexity by focusing on meaningful groupings and their interfaces before full integration. This differs from bottom-up integration, which starts with the smallest components and builds up, and from incremental integration, which adds pieces in steps without necessarily tying them to predefined subsets. Model-based integration uses models to drive the process rather than the physical assembly of predefined subsets.