Johan,
I think there is a major confusion on your side about the IM and Investment Measures. As stated before
IM: Investment management that manages the badget
Investment Measures: Internal Orders or Projects that are used in the capitalization process of the assets.
Only need one AuC class to be used as an interim bucket to collect Asset values until it is capitalized. By the final settlement it turns to a Final Asset.
AuC down payments: You don't need an additional AuC class there as AuC is capable to collect down payments and show separately what is down payment and what is asset value.
I hope this clarifies.
regards,
Dave