S90.03 is Arcitura Education's SOA Design & Architecture exam in the SOA Certified Professional (SOACP) program. It tests the eight principles of service-orientation, service composition design and the SOA architectural model. TroyTec offers 100 S90.03 practice questions in PDF and Online Test Engine formats.
S90.03 is the design core of Arcitura's SOA Certified Professional program. It moves past what SOA is and into how service-oriented solutions are actually shaped. That means how the eight principles of service-orientation influence each service you design, how services combine into compositions, and what makes a service-oriented architecture different from traditional, silo-based application design.
The exam centres on the service-orientation design paradigm. You need to know each of the eight design principles, what it requires of a service, and how the principles support or pull against one another. You'll also be tested on service composition design: how complex compositions are structured, and which runtime roles (composition controller, composition member, composition initiator) services play. Finally, you'll need to recognize the distinguishing characteristics of the SOA model compared with traditional architectures.
Arcitura's current Module 3, Design & Architecture with SOA, Services & Microservices, keeps S90.03's foundation and adds design guidelines for REST services, Web services and microservices. TroyTec's S90.03 question bank covers the core principles and composition topics shared by both versions, so it's also useful groundwork for the current SOA Architect certification exam.
Solution and enterprise architects designing service-oriented systems.
Senior developers moving into architecture roles.
Integration specialists who design service contracts and compositions.
Candidates working toward Arcitura's SOA Architect certification.
Anyone who plans to take S90.08 Advanced SOA Design & Architecture or S90.08B SOA Design & Architecture Lab, both of which build directly on S90.03.
Exam code : S90.03
Exam name : SOA Design & Architectur
Vendor : Arcitura Education
Program : SOA Certified Professional (SOACP)
Role in program : Core design module shared across SOACP tracks
Current equivalent : Module 3: Design & Architecture with SOA, Services & Microservices (SOA Architect track)
Exam type : Multiple-choice, concept and scenario-based
Delivery : Pearson VUE test centres / OnVUE online proctoring
S90.03 is Arcitura Education's SOA Design & Architecture exam in the SOA Certified Professional program. It tests the service-oriented architectural model, the eight design principles of service-orientation, and service composition design.
Standardized service contract, service loose coupling, service abstraction, service reusability, service autonomy, service statelessness, service discoverability, and service composability.
In Arcitura's current curriculum, the same subject is Module 3, Design & Architecture with SOA, Services & Microservices. It is part of the SOA Architect certification track and adds design guidelines for REST services, Web services and microservices.
S90.03 covers the design paradigm and principles: what makes a service well designed. S90.08 covers advanced architecture mechanics such as centralization patterns, messaging, service brokers and ESBs, which build on S90.03.
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Updated September 22, 2026
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