The definition of Defined Cost in the ECSC is brief by comparison to the ECC as it would only be used for assessing compensation events, which by definition will be low risk, low value items in the context of an ECSC.
If you are wanting to engage a Contractor on a cost reimbursable basis then you will have to use the ECC as the ECSC does not contain any main or secondary options. It provides only a simple pricing mechanism for use on simple, low risk, low value projects.
Due to the brevity of the definition of Defined Cost it is likely to cause some issues around interpretation of what is and isn't paid for. If you are looking for a daywork style time and materials contract it would be technically possible to do this under the ECSC however you would need to amend the standard form of contract in order to make it work.
If you are wanting to engage a Contractor on a cost reimbursable basis then you will have to use the ECC as the ECSC does not contain any main or secondary options. It provides only a simple pricing mechanism for use on simple, low risk, low value projects.
Due to the brevity of the definition of Defined Cost it is likely to cause some issues around interpretation of what is and isn't paid for. If you are looking for a daywork style time and materials contract it would be technically possible to do this under the ECSC however you would need to amend the standard form of contract in order to make it work.