契約が違えば現場も違う：日米SIの調達プロセスとリスク配分のリアル

The article contrasts Japanese and U.S. approaches to RFPs and requirements in system-integration projects: Japan tends to treat RFPs/requirements as fixed contractual directives, while the U.S. often treats RFPs as a flexible starting point for jointly refining requirements, especially in transformative or cloud/data projects. It highlights how entering a project with the wrong cultural expectation about requirement rigidity can lead to disputes and project failures.