This document defines the WS-I Basic Profile 1.1, (hereafter, ""Profile""), consisting of a set of non-proprietary Web services specifications, along with clarifications, refinements, interpretations and amplifications of those specifications which promote interoperability.Section 1 introduces the Profile , and explans its relationships to other profiles. Section 2, ""Profile Conformance"", explains what it means to be conformant to the Profile.Each subsequent section addresses a somponent of the Profile, and consists of two parts: and overview detailing the component specifications and their extensibility points, followed by subsections that address indivi