An invitation to tender is published and a number of contractors will price the construction of the design, from which a single winner will be chosen to complete the works.
[2] The contractor can then use their knowledge and experience to influence the project design to increase buildability or value and may be asked to advise on construction phase risks.
[2] The contractor may choose to involve their supply chain sub-contractors in the process to offer additional expertise.
[4][2] ECI contracts tend to lead to more harmonious client-contractor relationship, though there is less competition than with traditional open tenders.
[6] The wider adoption of ECI was a recommendation of the 1994 Latham Report into systemic failings in the British construction industry; the practice became increasing popular during the early 2000s.