Key Objects and Object Relationship Model
Key Objects in Apex Business

Accounts
Companies we deal with. Either companies who buy our services (Clients) or companies we buy from (Vendors)
Contacts
People we deal with. Either external people (CRM Contacts) or Proximity staff (PSA Resources).
Opportunities
Work we are considering or actively bidding for
Resource Requests
Proximity staff being considered for an Opportunity
Projects
Work we are delivering
Assignments
The glue between a Project and a Resource (A Resource is Assigned to a Project)
Timecards
Time worked on an Assignment by a Resource
Schedules
The planned hours per week a Resource will work on a job
Work Calendars
The contracted hours a Resource works for Proximity per week
Object Relationship
