Reflecting over the ideation process

I am starting to get a hold of what bothers me about the ideation process so far and it is that I am trying to create design solutions to meet a design brief, but I am not taking into account that this prief has changed over time. It is like trying to find answers to a question, disregarding that the question itself has changed. It feels like a possible answer to the question in the form of the vacuum cleaner idea is already known (like Douglas Adams 42) and now I have to rephrase the question.

In the beginning of this project I had the still abstract idea to show how everyday items can be repurposed by adapting them, but this has transformed over time into the idea of creating products that are designed to be adaptable and make use of obsolete items, so they actively encourage a user-product-relationship beyond consumption.