Moreover, client can have a direct influence on the design of the project which can enhance the level of functionality and quality of the design. Level of cost certainty is reasonably high in lump sum contract and tendering. Changing the contract is relatively simple to arrange and manage. Although traditional methods of procurement are tried, tested and accepted in the market, they have some drawback. Firstly, preparing the tender documents is a time-consuming procedure. Tendering documents from an incomplete design can be produced but leads to inaccurate time and cost certainty which may lead to disputes. The overall duration of the projects are longer due to the sequential procedure of providing tender documents and design completion. Contractor cannot collaborate in the design of the project as they are not employed during the design
Moreover, client can have a direct influence on the design of the project which can enhance the level of functionality and quality of the design. Level of cost certainty is reasonably high in lump sum contract and tendering. Changing the contract is relatively simple to arrange and manage. Although traditional methods of procurement are tried, tested and accepted in the market, they have some drawback. Firstly, preparing the tender documents is a time-consuming procedure. Tendering documents from an incomplete design can be produced but leads to inaccurate time and cost certainty which may lead to disputes. The overall duration of the projects are longer due to the sequential procedure of providing tender documents and design completion. Contractor cannot collaborate in the design of the project as they are not employed during the design