B2B: Business to business. Companies doing business with other companies. 

B2C: Business to consumer. Companies selling to consumers. Internet-example: amazon.com, cdon.com. 

C2B: Consumer to business. Consumers can register product or service requirements, which are matched to offers from different suppliers. Internet example: priceline.com. 

C2C: Consumer to consumer. Consumers offering products or services to other consumers. Example: ebay.com, qxl.no. 

B2G: Business to government. Trade between companies and government. Also called B2A - Business to Administration.

B2E: Business to employee. 

A2A: Application to application. Different applications which exchange information in a structured format. The A is also for Administration: A2A could be Administration to Administration as well. Administration as in Government. 

M2B: Machine to business. Machines delivering information directly into the enterprises computer systems. 

M2M means Machine to Machine, used for communication between machines.

ERP: Enterprise Resource Planning. Often used as a term for the financial system in an enterprise, with accent on manufacturing, logistics and planning. However, ERP is more a management philosophy as a computer application. 

CRM: Customer Relationship Management. CRM is to build a long-lasting relationship with customers by understanding individual needs and preferences. CRM is a business strategy - an attitude to employees and customers - that is supported by certain processes and systems. 

SCM: Supply Chain Management. Application to manage the supply chain. 

ASP: Application Service Provider. A company that offers application rental over the Internet. An Application Service Provider is a company that provides internet based services in an outsourcing capacity to other corporations. Services provided might be e-mail for corporate networks or software support for corporate information systems. Rather than own and install its own software packages a company might contract with an ASP to use the internet to supply software and support to its corporate networks for a monthly fee. If someone insist that ASP stands for Advanced Server Pages, you are probably talking to an internet application developer. 

BSP: Business Service Provider. A company that offers outsourcing of business processes. A BSP takes responsibility for value creation that is a part of the customers core business. 

ISP: Internet Service Provider. The operator you connect to when entering the Internet. ISPs offer internet access, email accounts, and website hosting. 

BPR: Business Process Reengineering. A method to redefine and optimize business processes.

WAP: Wireless Application Protocol. Makes it possible to show internet pages on small, handheld devices such as mobile phones or palm organizers. Today, WAP is restrained by the low speed in mobile networks; with high-speed networks as GPRS, WAP will be more user-friendly. 

XML: Extensive Markup Language. Defines a platform-neutral method of communicating data between different systems. XML allows data to be described in terms of what it actually is; for example, the information 'Drammensveien 1' could be marked by a XML tag such as <Home_Address> which would mark a section of data as containing a customer's home address. 

IP: Internet Protocol.

TCP/IP: Network protocol, widely used for transferring data over internet.

FTP: File Transfer Protocol. Used for file transfer over the Internet. When you download a file from the net, FTP is used to transfer the file from the web server to your hard disk. 

W3C: WWW Consortium. Organization that sets standards for the Internet.

SET: Secure Electronic Transaction. Standard for safe transactions mainly used for purchases at web shops. 

SSL: Secure Socket Layer. Standard for secure information transfer. 

API: Application Programming Interface. A standard interface that can be used to communicate or integrate with an application.

SMS: Short Message Service. Method for sending short text messages over the GSM Network. A SMS message can be up to 160 characters long. 

P2P: Peer to Peer. Method for direct communication between end-users. Napster and SMS are examples of P2P services. 

OLAP: Online Analytical Processing. Technique used to present data and look at data from different angels.

EDI: Electronic Data Interchange. Electronic interchange of structured information directly between computer systems in a standardized format. Edifact and Odette are examples of EDI standards. 

GSM: Standard for the digital mobile phone network, developed in Europe but used today in most countries all over the world.  

GPRS: General Packet Radio Service. A standard for data transfer being implemented in GSM networks. GPRS makes it possible to be connected to the Internet from a mobile device at all times, and only pay for transferred data instead of connection time. GPRS also increases data speed. GPRS makes mobile internet possible. 

UMTS: Universal Mobile Telecommunications System. The next generation of mobile telecommunications, taking over after NMT and GSM. In UMTS, speed and data-transfer functionality are increased compared to GSM with GPRS; it makes multimedia possible in a mobile environment.