A value chain is a set of activities that a firm operating in a specific industry performs in order to deliver a valuable product or service for the market. Porter described a chain of activities common to all businesses, and he divided them into primary and support activities, as shown below.


Figure The Value Chain Model


v  Primary Activities

Primary activities relate directly to the physical creation, sale, maintenance and support of a product or service. They consist of the following:

  • Inbound logistics – These are all the processes related to receiving, storing, and distributing inputs Your supplier relationships are a key factor in creating value here.
  • Operations – These are the transformation activities that change inputs into outputs that are sold to Here, your operational systems create value.
  • Outbound logistics – These activities deliver your product or service to your customer. These are things like collection, storage, and distribution systems, and they may be internal or external to your organization.
  • Marketing and sales – These are the processes you use to persuade clients to purchase from you instead of your competitors. The benefits you offer, and how well you communicate them, are sources of value


  • Service – These are the activities related to maintaining the value of your product or service to your customers, once it's been

v  Support Activities

These activities support the primary functions above. In our diagram, the dotted lines show that each support, or secondary, activity can play a role in each primary activity. For example, procurement supports operations with certain activities, but it also supports marketing and sales with other activities.

  • Procurement (purchasing) – This is what the organization does to get the resources it needs to This includes finding vendors and negotiating best prices.
  • Human resource management – This is how well a company recruits, hires, trains, motivates, rewards, and retains its workers. People are a significant source of value, so businesses can create a clear advantage with good HR
  • Technological development – These activities relate to managing and processing information, as well as protecting a company's knowledge Minimizing information technology costs, staying current with technological advances, and maintaining technical excellence are sources of value creation.
  • Infrastructure – These are a company's support systems, and the functions that allow it to maintain daily Accounting, legal, administrative, and general management are examples of necessary infrastructure that businesses can use to their advantage.



By effectively using an information system in a strategic role at any, or preferably all, levels of the organization, a digital firm can provide more value in their products than the competition. If they can‘t provide more value, then the strategic information system should help them provide the same value but at a lower price.