###### tags: `ERP`

# ERP (Enterprise Resources Planning)
Business Documentary Lifecycle management software

# Sections
* SCM - Supply chain management
* Sales
* Customer
* Procurement
* Supplier
* Inventory
* Production
* Manufacturing
* Customer
* Supplier
* HCM - Human capital management
* HR
* CRM
* Accounting - Ledger representation of financial records
* DMS - Document management system

# types of docuements
documentary lifecycle is the core workflow of the business
* financial lifecycle
* administrative lifecycle
* commercial
* legal
* inventory

# types of document models
* transaction
* document (attachment)

# Accounting equation
equation only inclueds real account

## real accounts
Assets = Liabilities

assets -> liablity
assets -> assets
liability -> liability
liability -> assets

## virtual accounts
Income + Expenses

# ERP Levels

## TIS - Transaction information systems
* All transactions
* All documents
## MIS - Management information systems
* All operations that require management or legal activity
## DSS - Decision support systems
* The output of the system that contributes to the KPI measurements

# Double-entry accounting database design concepts

## Account
* reference
## Transaction
* container
* contains two or more legs
* if it contains two legs it is called double-entry
* if it contains more than two it is called complex-entry
## Leg
* financial record
* references the transaction
* references the account