<p>During early stages of the design process, ideation methods are used to generate a set of potential solutions based on a particular set of needs. In this paper, the notion of <i>tactics</i> is introduced to describe the deliberately designed action(s) that employ available means to achieve a design objective. Solution ideas generally require both technology and tactics of some sort, although they may omit explicit mention of either technology or tactics. Previous research suggests that an explicit consideration of tactics in early-stage ideation enables design teams to more completely explore the design space, and that complete ideas—those that contain both tactics and technology—are preferable for further development. In this paper, a novel ideation method called the Random Prompts Method is presented, and its performance is evaluated against an adapted Brainwriting Method. Results from an ideation experiment show that briefly teaching participants about tactics can drastically increase the fraction of ideas that include tactics, relative to sample idea sets in the literature. It also showed that the Random Prompts Method generated more novel ideas than the adapted Brainwriting Method, and outperformed it in several other metrics that indicate it improves design space exploration. Finally, the experiment showed that complete ideas are more novel, on average, than incomplete ideas, as predicted in earlier work, and techniques are provided for generating complete ideas. These conclusions hold value for improving design space exploration and co-development of tactics and technology.</p>