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 Activity- 

 based process defi nition methods

 ’. A  

process

  can be defined at the business level in terms 

of the main activities of a business. Each process can be broken down further as explained in 

the section on ‘Task analysis and task decomposition’. Significant business processes are ele-

ments of the value chain; they include inbound logistics (including procurement), manufac-

ture, outbound logistics or distribution, and customer relationship management or sales and 

marketing activity. Davenport (1993) notes that even for large multinational organisations 

the number of main processes will rarely exceed ten. 

Note that in addition to the approaches shown here,  use-  case analysis to assist in defining 

interface requirements is described in the ‘ Focus on    User-  centred  site  design’  section.