## 5 Discussion, Conclusions, and Future Work
### Discussion of Results
#### 5.1.4 Research Limitations and Future Directions
By creating personalized experiences tailored to each user's unique characteristics and preferences, the seamless technology framework could provide more targeted support and better address the heterogeneity within the elderly population. Potential technical approaches may include incorporating machine learning techniques to model user profiles and dynamically adapt the system features accordingly for users at different ability levels. Additionally, our research provides an in-depth analysis of elderly-centered interactive technologies based on six core dimensions: technology acceptance, social interaction, attractiveness, sense of achievement, ease of use, and expectation. These dimensions were directly influenced by our core design principles, including seamless integration, warmth, and emotional engagement, which have been instrumental in developing a cohesive and effective technology integration framework for elderly users. The following suggestions further highlight potential avenues for future research based on these dimensions:  
* **Technology acceptance**: The seamless integration of technology into familiar everyday objects, such as pillows, significantly reduces the learning threshold and increases technology acceptance among elderly users. Future research could further explore the integration of more diverse technologies into everyday items across different cultural and environmental contexts. Specifically, studies could focus on adaptive and personalized designs that cater to the unique needs and preferences of elderly individuals, thereby enhancing the overall acceptance of technology in their daily routines. * **Social interaction**: Social interaction plays a vital role in the Pillow Fight system, emphasizing physical activity coupled with social engagement. Our design encourages interpersonal connections among elderly users. Future research could explore methods to further strengthen these social interactions through remote technologies. For instance, integrating intergenerational interaction features or designing functionalities that connect remote users could allow elderly individuals, regardless of their location, to engage meaningfully with others, thus reducing social isolation. * **Attractiveness**: The visual and tactile appeal of technology is crucial for maintaining continued engagement among elderly users. Our study demonstrates that emotional engagement and gamified elements enhance the attractiveness of the system. Future studies could delve into how personalized designs might further improve the attractiveness of technology, including introducing more sensory elements to foster elderly users' interest and sustained engagement. * **Sense of achievement**: Gamified design that allows elderly users to feel a sense of accomplishment is a key feature of our study. Future work could consider incorporating additional goal-setting mechanisms and achievement-unlocking features, such as point systems and reward incentives, to further enhance user engagement and long-term participation. * **Ease of use**: One of our core design principles is to reduce the learning barrier, making the technology as intuitive as possible for elderly users. Future research could explore optimizing ease of use through adaptive technologies based on user feedback. This may include the integration of voice or gesture controls to simplify interactions further and cater to users with different levels of physical ability. * **Expectation**: The expectations of elderly users regarding technology are diverse and evolve over time with experience. Future studies could investigate how systems can adapt to the changing expectations of elderly users, particularly by exploring new features and upgrades that align with users' evolving needs. Providing tailored solutions that adjust to their growing familiarity with technology could enhance adaptability and sustainability.