The SAP ERP is an integrated enterprise resource planning (ERP) software developed by SAP AG for organizations of all sizes. It allows for open communication within and between all company functions, using its modularized approach. wikipedia.org

Inventory means a list compiled for some formal purpose, such as the details of an estate going to probate, or the contents of a house let furnished. wikipedia.org

Purchasing refers to a business or organization attempting for acquiring goods or services to accomplish the goals of the enterprise. Purchasing managers guide the organization's acquisition procedures and standards. wikipedia.org

Supply chain management (SCM) is the management of a network of interconnected businesses involved in the ultimate provision of product and service packages required by end customers. wikipedia.org

Process improvement is a series of actions taken by a process owner to identify, analyze and improve existing business processes within an organization to meet new goals and objectives. wikipedia.org

Procurement is the act of finding, acquiring, buying goods, services or works from an external source, often via a tendering or competitive bidding process. wikipedia.org