CUST.1:4.5 - Construct the common continuation and its delivery

When sharing could help, build the family through CUST.3: common result and conditions, invariants, allowed variations, forbidden combinations and the local residue. The same artifact can belong in one family and be unusable in another because support, permission or customer work differs.

Make a customer choice through CUST.4. Join that choice to the actual delivery method through CUST.6. The resulting package of explanation, tools, preparation and support must obtain the intended result for another prepared performer; it need not eliminate all assistance.

A technical platform decision remains with its engineering method. Obtain the architecture, interface or supported-use result and use it to define the family and delivery conditions. If it supports only a narrower class, narrow the offering rather than treating technical approval as permission for every customer promise.