Arcitura S90.05 targets cloud architects and software engineers tasked with implementing service-oriented architectures through standardized technical specifications. The curriculum mandates mastery of XML-based protocols, specifically focusing on SOAP messaging, WSDL interface definitions, and WS-Policy for security assertions. Candidates must evaluate WS-Addressing, WS-ReliableMessaging, and WS-AtomicTransaction to ensure robust service interoperability. Furthermore, the exam validates proficiency in JSON data structures, RESTful service patterns, and the integration of BPEL for orchestrating complex business processes. Technical competency is measured by the ability to architect decoupled, platform-independent distributed systems using these industry-standard languages, schemas, and messaging frameworks within modern service-oriented ecosystems.