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7 Chapter 2 Literature Review: Markets, Intermediation and E ...

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<strong>and</strong> coordination of activities across business partnerships. Extranets foster<br />

collaboration because they enable access to internal systems <strong>and</strong> data of business<br />

partners. In the eyes of Watson <strong>and</strong> McKeown, extranets constitute a third form of<br />

electronic commerce:<br />

“Extranets do more than extend IOS to a greater number of partners. They offer a<br />

new way of fashioning interorganisational structures by altering information<br />

structures <strong>and</strong> decision functions. Extranets are further evidence that the widespread<br />

adoption of Internet technology will fundamentally change commerce.” (Watson <strong>and</strong><br />

McKeown 1999, pg. 43)<br />

2.6 The Value Chain <strong>and</strong> the Impact of EC<br />

Interorganisational systems can therefore be thought of as systems to link partners in<br />

the value chain model. This model describes how the different stages of business<br />

operations are organised, including all processes involved in designing,<br />

manufacturing, <strong>and</strong> distributing products from the initial blueprints to the final<br />

delivery to the end user. Each step in the chain adds value to the overall operation.<br />

Traditionally, this perspective views a company as a chain of activities. Porter (1985)<br />

distinguishes between value chains, describing activities internal to one company, <strong>and</strong><br />

value systems, describing several organisations, each carrying out different processes<br />

<strong>and</strong> linking them with its trading partners. However, we are not going to make the<br />

distinction here, as many researchers use both terms to discuss interorganisational<br />

processes.<br />

A large company may control several steps in the value chain <strong>and</strong> will obviously be<br />

aiming to improve in as many areas as possible. However, extensive value chains<br />

often suffer from problems with the information flow, where some of the links might<br />

not be as good as others in providing the necessary information. In order to ensure the<br />

greatest benefits are attained, all of the links should perform well. There should be no<br />

weak links in the chain acting to block or suppress the flow of information (in both<br />

directions). The development of new ICT, <strong>and</strong> in particular e-commerce technology,<br />

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