What is the minimum number of domain service inventories you need in order to create a single enterprise service inventory?

Question

Options

• Atwo
• Bthree
• DAn enterprise service inventory is not comprised of domain service inventories.

• A
  9% (4)
• B
  17% (8)
• D
  74% (35)

Explanation

Option D is correct because an enterprise service inventory and domain service inventories represent mutually exclusive governance scopes, not a hierarchy where one is built from the other. An enterprise service inventory is governed centrally across the entire organization, while domain service inventories are governed independently within specific business domains - choosing one model means you are not using the other.

Options A (two) and B (three) are wrong because they assume a compositional relationship: that you can aggregate domain service inventories to form an enterprise inventory. This misunderstands the SOA governance principle - the enterprise inventory replaces, not combines, domain-scoped inventories.

Memory tip: Think of it like political systems - a federal government isn't formed by merging city governments; it's a separate, higher-level structure. Similarly, an enterprise service inventory isn't assembled from domain inventories; it's a distinct governance choice at a broader scope.

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