UsabilityNet logo 1 UsabilityNet logo 2


overview
how to promote usability
design principles
top 10 web mistakes
what is usability
international standards
assessing usability capability
planning user centred design
usability in procurement
 


Usability in Procurement

Incorporating usability requirements in the procurement process can reduce the risk of failure when implementing a newly acquired system and increase ease of use and thus productivity and/or profitability.

  • Lack of user performance requirements was a fundamental reason for the expensive costs and delays incurred when new passport issuing software developed by Siemens was installed in the UK [reference 12].
  • Two studies have shown that the user success rate in purchasing from current ecommerce web sites is in the range of 25-60% [references 10,13].  Small improvements in user performance could lead to substantial increases in revenue.

Defining requirements for user performance and satisfaction is not difficult to do, and involves three related activities: analysing the context of use, defining task scenarios, and specifying testable requirements for effectiveness, efficiency and satisfaction for each scenario. Evaluating usability requirements needs a carefully designed usability test with at least 8 representative users carrying out realistic tasks.

The PRUE web site provides a guide for how to specify and test usability requirements as part of a contractual relationship between a supplier and acquirer.  It includes case studies of four trials carried out in Europe by the EU-funded PRUE project.

 

 

 

 


Home | Professional Groups | Tools & Methods | Usability Practitioner | Usability for Managers | EU Project Support | About this Site
©UsabilityNet 2006. Reproduction permitted provided the source is acknowledged.