EAI

EAI: A cross-functional E-business application that integrates front-office applications like customer relationship management with back-office applications like enterprise resource management.
IAI: Internet application integration (IAI) enables multiple companies to automate cross-enterprise business processes, such as placing orders or checking inventory, by linking their different software applications over the Internet.

On-line Analytic Processing (OLAP) is a relational database optimized for rapidly analyzing data along multiple dimensions, such as customer, supplier, parts, products, and regions.

3PL: An organization that manages and executes a particular logistics function, using its own assets and resources, on behalf of another company
A 4PL is an integrator that assembles the resources, capabilities, and technology of its own organization and other organizations to design, build and run comprehensive supply chain solutions."

Vendor Managed Inventory: A means of optimizing Supply Chain performance in which the manufacturer is responsible for maintaining the distributors inventory levels. The manufacturer has access to the distributors inventory data and is responsible for generating purchase orders