started to work on mapping between conceptual and relational models
Added CreatePostgresModel and test suite
map conceptual data types to relational data types
create database schemata from domains
refactored test model factory
add audit infrastructure to postgres models created from conceptual
models
create tables for domain objects
create columns for values
create not null constraint for mandatory values
savepoint
create relational model in database from conceptual model
introduced concept of abstract classes (are not mapped to tables)
savepoint
savepoint
moved AddAuditInfrastructure to relationalmodelgen
added database users
added Group
implemented users in groups
added Privilege
derive User/Group from new class Role