I want to design specific class hierarchy consisting of three classes: Certificate, Organization, User. Both Certificate and Organization seem to me to be kinda
hangouts-api
delayed-job
entitymanagerfactory
azure-devops-task-groups
postgresql-copy
erwin
pcloud
commonsware-cwac
teachable-machine
scope-resolution-operator
pyqtgraph
soapy-sdr
win64
android-vectordrawable
gtktreeview
resteasy
windows-forms-designer
contactless-smartcard
data-transform
bytebuffer
chemistry
instruments
workflow-manager-1.x
sqlmigrations
system-integrety
wasm-bindgen
firebase-cloud-messaging
upn
mui-datatable
test-more