Exam Preparation

Which views of architecture do you know? Which diagrams correspond to these views?
- There are two main views on architecture: Logical View and Physical View
- Logical View can be described in Software Architecture, and shown in Component Diagram. This diagram shows how different component interact. Each component provides the endpoints for other components and und uses the endpoints of other components.
- Physical View can be described in System Architecture, and shown in Deployment Diagram. This diagram shows the hardware components and deployment of components, network communication between hardware.
What is Implementation Architecture?
- It contains technical details of the components - which languages and frameworks are used, which major design patterns are used in each component
What describes the Class Diagram?
- It describes the Macro Architecture and Micro Architecture.
- Macro Architecture is a description of each component on a black-box level. API of Microservice can be seen as Macro Architecture.
- Micro Architecture is the specification of each component, like normal UML Class Diagram.
What is SystemPlusSoftware Architecture?
- It is mix of Software and System Architecture. You can create it, taking the Deployment Diagram and adding the relations and communication between components from Component Diagram.

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Explain SOA
- XML-Based communication, SOAP Protocol
- Stage of software evolution between monolite applications and microservices
SOA vs Microservices
- SOA considers monolitic multi-threaded services deployed on own servers for each layer, Microservices can have multiple instances on each layers, mostly single-threaded.
- SOA components do scale vertically, microservices are more horizontally scalable
- SOA communication is based on XML, Microservices using REST API
- SOA is focused on enterprise scale, microservices on application scale.
Which architecrute styles do you know from WASA lecture?
- Microservice Architecture, which is typically done with Layers for Presentation, Application Logic, Domain Logic and Infrastructure
- API-led Connectivity, the architecture of Mule Applications
Show an example for SystemPlusSoftwareArchitecture
What is the difference between 3 Layer Architecture and Microservice Architecture
- 3 Layer Architecture: Presentation Layer, Application Layer, Database Layer
- Microservice Architecture: Application Layer is splitted in Application Logic Layer with application-specific data and Domain Logic Layer with application agrnostic data.

Explain Software-Engineering Process of C&M
- Domain and Application are developed parallel
- For Application Development we need to perform requirement analysis: create Ubiquitous Language, Vision and Business goals, Capabilities, User-System Interactions and USI Flows. Then comes Design Phase, which defines the structure of application and required changes in domain. Then the business logic will be specified with Task Process and API Specification. Then comes Implementation and Tests. At the end, Deployment will be configured.
- For Domain Development we define a Context Map of the Domain, the will be extended and reworked with new requirements of application. Context Map consists of Bounded Contexts, that should be defined in own microservices, and then implemented and deployed.

What is BDD?
- Behavior Driven Development considers the “vertical cuts” of system, defining the system as set of End to End Features.
What is Gherkin Features?
- Gherkin Features are test scenarios of the interaction between user and UI of system