It’s always the question, is it better to give a system a try, with just advertizining innovation inside the company or launch an idea campaign?
Idea campaign with good incentives can result with big number of filed ideas, but the quality of these ideas can be doubtful. There’s also the issue, can you hadnle big number of ideas the same time, and how it will effect to innovation climate inside company if big number of filed ideas will be refused.
Something is the middle is the anwer: have an idea campaign, but let it go for the whole year, and after it launch the next one. then I would call it: Idea programm. There will be no pressure to file an idea before some deadline, and everybody will have the feeling that they can win one more incentive, except the standard one. Great thing with idea programm is that it can have own name and slogan, so that you can fill the company coridors with posters of your idea campaign.