Выражение встречается в следующем контексте: We have hundreds of interfaces where deliverables are exchanged every day. This is especially relevant during the early parts of project when we are executing the engineering, procurement and project management activities. ...... Performance quality assures me, "that we have the thoroughness in our process to deliver a quality product to our customers which meets contractual requirements"

Подскажите, как правильнее перевести deliverables. Документация или поставочные материалы, а может просто материалы?
Заранее спасибо