I want to design specific class hierarchy consisting of three classes: Certificate, Organization, User. Both Certificate and Organization seem to me to be kinda
bodypix
magicalrecord
cbind
coremidi
azure-sql
sql-server-2008
flash-cs5
javax.imageio
scalability
flask-migrate
gnu-prolog
logback
tippecanoe
adobe-brackets
knockout-subscribe
memgraphdb
elastic-cache
twitter-fabric
synchronized-block
svg-rect
nstextfield
htmldecode
call-by-value
codahale-metrics
cyber-ark
gojs
event-binding
prefix-tree
testinfra
colander