<P> Calculations for impact can then be done by hand , but it is more usual to streamline the process by using software . This can range from a simple spreadsheet , where the user enters the data manually to a fully automated program , where the user is not aware of the source data . </P>
what are the different types of software which can be used in lca study
can range from a simple spreadsheet , where the user enters the data manually to a fully automated program , where the user is not aware of the source data