MBSE with GENESYS 073122

Decomposing Composite Requirements

Composite requirements must be broken down into single, verifiable requirement statements • Break up requirements without changing the meaning • Maintain traceability to originating requirement (and indirectly the source document) Steps to create new child requirements from composite parent requirement 1. Duplicate requirement specifying a new name 2. Edit Description in new child requirement 3. Set child Type attribute to “nil” 4. Relate child to parent using refines relationship 5. Renumber composite requirement to automatically number new children

139

Decomposing R.2.2

1. Duplicate “Retain Inventory and Provide Products” a) Set duplicate name to “Retain Inventory” b) Set Type to “nil” c) Establish refines relationship with “Retain Inventory and Provide Products” 2. Repeat process duplicating parent to create “Provide Products” 3. Renumber parent Requirement “R.2.2”

140

MBSE with GENESYS