Each candidate building block is one row, scored one to five on reusability, maturity and total cost of ownership. The type and the decision read across so the buy-or-build call sits next to the scores behind it.
An ABB stays product-neutral so it survives change; an SBB pins the choice to a vendor for speed and proven maturity. A high reuse score favours building an ABB; high maturity with low cost favours buying an SBB.
Up to 6 candidates; names up to 38 characters, so every row fits the matrix.
Name and score at least one candidate. The weighted recommendation and the ABB or SBB guidance appear here.