Virtual services
Create reusable API mocks and virtual services for supported APIs, messaging systems and data dependencies.
Parasoft Virtualize
Simulate unavailable, unstable, costly or difficult dependencies with controllable virtual services to reduce test-environment constraints.
API mockingStateful simulationTest data controlModern & legacy protocols
Dependency virtualization
InputsService contractsTraffic, data & behaviour
Engineering controlsModel virtual assetsConfigure state & faultsDeploy on demand
OutputsAvailable dependenciesRepeatable scenariosParallel testing
Test-environment control layer for distributed systems and dependent services.
A virtual service is only as accurate as its model, data and maintained contract. It does not by itself prove the production behaviour of the real dependency.
ParasoftSoftware quality
Core capabilities
Core engineering capabilities
Exact capabilities depend on the selected edition, release and deployment environment.
Stateful behaviour
Model sequences, persistent state, data-driven responses and complex transaction paths.
Fault and edge simulation
Introduce controlled delays, errors and abnormal responses without destabilizing shared systems.
Test data workflows
Use generated, masked, recorded or modelled data according to the selected deployment and governance model.
Deployment flexibility
Deploy virtual assets in supported local, server, containerized and cloud environments.
SOAtest integration
Combine virtualized dependencies with API tests for controlled end-to-end scenarios.
Implementation workflow
From evaluation to deployment
Validate the technology in the real build, target and reporting environment before wider rollout.
- 01Identify constrained dependencies
- 02Capture contracts and behaviour
- 03Model state and data
- 04Add error conditions
- 05Deploy virtual assets
- 06Version and govern reuse
Confirm the deployment fit
Compatibility depends on the actual toolchain, target environment, integration needs and assurance objectives.
- Protocols and message formats
- Required behavioural fidelity
- State persistence and test-data needs
- Deployment scale and concurrency
- Ownership of virtual assets
- Change detection and maintenance process
Where the technology adds value
Well suited for
- Dependencies unavailable during development
- Costly or rate-limited third-party services
- Parallel team and CI test environments
- Fault, latency and edge-case simulation
Important considerations
- Virtual services complement, rather than replace, validation against real dependencies.
- High-fidelity simulation requires accurate behavioural and data modelling.
- Virtual assets must be maintained as contracts and behaviours evolve.
- Virtual-service performance does not certify the real dependency.
Relevant engineering frameworks
Test-environment governanceData privacy and masking controlsService contract management
Related capabilities
Extend the software assurance workflow
Explore adjacent capabilities across requirements, verification, testing and embedded security.