The submission of the technical and financial proposals happens in 2 different stages and at completely separate times as opposed to the same time.

A competitive procurement method that limits requests for tenders to suppliers, contractors or service providers already shortlisted by a procuring entity.

For obtaining competitive tenders for services which are creative in nature and which require that part of the services be carried as part of the tender.

Open tenders have no allocated minimum expenditure amount whereas the maximum is determined by the budget allocated for the particular procurement. 

Renewable business documents tend to be tricky to keep track of and, at times, bidders tend to discover they are using expired tender documents too late in the tendering process.