Interactive prototyping can save money and time when designing products, but it does come with some challenges. Here are some of those difficulties and how to solve them:

1. Initial Investment: Making interactive prototypes often needs special tools or software that can be quite expensive. This can make it hard for teams to plan their budget.

   • Solution: Use free tools or cheaper software options that still allow for interactivity.

2. Skill Gap: If team members don’t have the right technical skills, it can be tough to create effective interactive prototypes. This might lead to wasted time and resources.

   • Solution: Offer training programs or workshops to help the team learn how to use these prototyping tools better.

3. Client Misunderstanding: Sometimes, clients might see an interactive prototype and think it's the final product. This can lead to confusion about what to expect and could change the project’s goals.

   • Solution: Make sure to explain what the prototype is for, stressing that it’s a tool for testing and not the final version.

4. Time Consumption: If not organized well, making and improving interactive prototypes can take a lot of time. This could delay the overall design schedule.

   • Solution: Create clear deadlines and focus on the most important features to stay on track.

Even with these challenges, if teams manage interactive prototyping carefully, it can really improve the design process. This approach helps catch problems early and makes sure everyone is on the same page about what to expect.