For the different use cases, people created emulators/simulators. This page aims to reference them and leverage on existing simualtors.
In other words before creating yours, check that somebody did not already created it 
PNF Simulators
pnf onboarding
Owner: szabolcs.hutvagner AT ericsson.com
Repository: https://git.onap.org/integration/tree/test/mocks/pnf-onboarding
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
PNF simulator
Owner: Krzysztof Kuzmicki
Repository: https://git.onap.org/integration/simulators/pnf-simulator/
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
Sniro simulator
Owner: georab AT amdocs.com
Repository: https://git.onap.org/integration/tree/test/mocks/sniroemulator
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
Mass PNF Simulator
Owner: Tamas Bakai
Repository: https://git.onap.org/integration/tree/test/mocks/mass-pnf-sim
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
PMSH PNF simulator
Owner: user-3784d
Repository: https://git.onap.org/integration/tree/test/mocks/pmsh-pnf-sim
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
RAN simulator
Ran simulator
Owner: Priyadharshini B
Repository: https://git.onap.org/integration/simulators/ran-simulator/
Description:
Use cases: <list of use cases using this simulator>
Compatibility version: > Frankfurt
Misc
EMS simulator
Owner: Enbo Wang
Repository: https://git.onap.org/integration/tree/test/mocks/emssimulator
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
HV VES Simulator
Owner: Marcin Przybysz
Repository: https://git.onap.org/integration/tree/test/mocks/hvvessimulator
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
Netconf PNP simulator
Owner: Eliezio Oliveira
Repository: https://git.onap.org/integration/tree/test/mocks/netconf-pnp-simulator
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
DC simulator
Owner: Xin Miao
Repository: https://git.onap.org/integration/simulators/dc-simulator/
Description:
Use cases: <list of use cases using this simulator>
Compatibility version:
ProvMnSProvider
Owner: Cheng Huang
Repository: https://git.onap.org/integration/tree/test/mocks/prov-mns-provider
Description: Provisioning management service provider for 5G NRM CM
Use cases: <list of use cases using this simulator>
Compatibility version:
Datafile-collector
Owner: Björn Magnusson
Repository: https://git.onap.org/integration/tree/test/mocks/prov-mns-provider
Description: Provisioning management service provider for 5G NRM CM
Use cases: <list of use cases using this simulator>
Compatibility version: