First of all "projectisation" is not really a word (at least not officially, since it does not appear in reference dictionaries), but it if it did, it would probably mean the act of turning something into a project, or structuring something like a project.\n\nIt is always hard to guess the true meaning of a word outside of context, but my best guess is this word was made up by someone to talk about the introduction of formal procedures (such as scheduling, planning, resource management, etc.) into an activity which was very informal before, or making it more business-like in general.