Database Schema shows how it is represented on disk.
Data Structure shows how it is represented in memory.
Inventory Decision Tree shows how it manages inventory.
Source Code is open to the public.
The Accountancy Model assists the Accountancy Profession to model a firm's economic events. Economic events are observed and then processed through a highly defined algorithm. The basic model begins with the identity:
Assets = Liabilities + Owners' Equity
Each Asset, Liability, and Owners' Equity expands to
many accounting subclassifications. Each subclassification
further expands to many accounts. After an economic event
is observed, the appropriate accounting model is mathematically applied.
The output from the model is a journal entry.