iSAQB® API
iSAQB® API (Application Programming Interfaces) is a CPSA-Advanced Level module that covers APIs as technical interfaces, organizational interfaces, and business-oriented building blocks. Participants learn why APIs matter, how APIs create value (including API economy concepts), and how to choose and apply API styles and technologies such as REST, GraphQL, HTTP APIs, and gRPC.
Description
iSAQB® API (Application Programming Interfaces) is a CPSA-Advanced Level module that covers APIs as technical interfaces, organizational interfaces, and business-oriented building blocks. Participants learn why APIs matter, how APIs create value (including API economy concepts), and how to choose and apply API styles and technologies such as REST, GraphQL, HTTP APIs, and gRPC. The course includes practical work on API design using an outside-in approach, API descriptions, and versioning. It also addresses API lifecycle and tooling, security, and operating APIs at scale with platforms and governance.
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What You Will Learn
Curriculum structure (iSAQB CPSA-A Module API), based on the official curriculum PDF: iSAQB curriculum for Advanced Level: API. ([public.isaqb.org](https://public.isaqb.org/curriculum-api/curriculum-api-en.pdf))
Module 1- Why APIs are Important
Role of APIs as network-based interfaces (not local programming interfaces)
APIs as technical, organizational, and business-oriented interfaces
Module 2- How APIs are Creating Value
Value creation through APIs
APIs as a means of collaboration between teams in an organization
Module 3- API Styles and Technologies
API styles and related technologies used to implement them
Module 4- API Design
Core API design topics and decision points
Module 5- Description of APIs
How APIs are described and documented
Module 6- API Lifecycle and API Tooling
API lifecycle topics
Tool support across the lifecycle
Module 7- API Security
Security topics specific to APIs
Module 8- APIs at Scale: Platforms and Governance
API platforms
Governance for APIs at scale
Recommended minimum durations (from the curriculum)
Total: 540 minutes (9 hours) teaching time, plus 180 minutes (3 hours) exercises
These times are recommendations, and the curriculum notes that a training course for the API module should be at least 2 days. ([public.isaqb.org](https://public.isaqb.org/curriculum-api/curriculum-api-en.pdf))
Certification & Exam
This course prepares participants for the iSAQB Certified Professional for Software Architecture (CPSA)® Advanced Level certification by covering the API (Application Programming Interfaces) module. Completion of an accredited iSAQB API module training can be counted toward the admission requirements for the CPSA-A certification process, contributing credit points in the Advanced Level competence areas (including Methodical Competence and Technical Competence). CPSA-A certification itself is not granted by finishing the course alone, it requires meeting iSAQB prerequisites and successfully passing the CPSA-A certification assessment, which includes an assignment and an oral exam conducted by iSAQB-appointed experts.
Official source: iSAQB CPSA-A Curriculum, Module API.
What You Will Achieve
Analyze an existing system landscape to identify API consumers, producer systems, integration points, and quality attribute risks (for example, security, performance, and maintainability) by the end of the course.
Apply common API design practices to define resources, operations, payload structures, error handling, and versioning rules, and document design decisions using clear acceptance criteria by the end of the course.
Create an API contract (for example, an OpenAPI specification) that includes endpoints, request and response models, error responses, and authentication requirements, and validate it against agreed design guidelines by the end of the course.
Evaluate API style and architectural options (for example, REST, event-driven APIs, and message-based integration) and select an approach that fits functional needs and quality attributes for a given case study by the end of the course.
Apply security and governance controls for APIs, including authentication and authorization concepts, rate limiting, and dependency and lifecycle management, and define measurable compliance checks by the end of the course.
Create a practical API delivery plan that covers documentation, testing levels, monitoring metrics, and change management, and present it as a checklist suitable for use by a delivery team by the end of the course.
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