# Aging-Friendly Design Research: Knowledge Graph Construction for Elderly Advantage Applications
## 4 \"Elderly Advantages Knowledge Graph\" Construction
### Knowledge Graph Functionality Evaluation  
#### 4.4.1 Functional Task Testing  
In the functionality-testing phase, the research team invited six graduate student mentors to participate in the usability testing of the elderly advantage map. The test tasks are detailed in Table 9. The testing process encompassed three steps, namely, a search, graph analysis, and design suggestions, as elaborated below. * \"Advantage Feature Retrieval\" Test Process Query and Feedback: The elderly population in this study ranged from 65 to 85 years old. Based on the WTO standard, this group was divided into two age ranges: 65-73 years and 74-85 years. By querying the 65-73-year-old group, we obtained Figure 16A; by querying the 74-85-year-old group, we obtained Figure 16B. In the figure, the purple nodes represent capabilities, while the blue nodes represent resources. Figure 15: Visualization of the user resource advantages AHP hierarchical model. \begin{table}
\begin{tabular}{c c} \hline \hline
**Serial No.** & **Test Task Name** \\ \hline \(1\) & Open the Neo4j graph database using the task interface and browser. \\ \hline \(2\) & Execute three query tasks using Cypher commands. \\ \hline \(3\) & Conduct discussions and analysis based on the feedback from the graph. \\ \hline \(4\) & Propose design suggestions based on the content of the graph. \\ \hline \hline \end{tabular}
\end{table} 
Table 9: Knowledge graph testing tasks. Graph Analysis: The chart reveals that the 65-73 age group had some experience with internet use and route-planning software. Their capabilities were reflected in their professional skills and logical thinking, and they usually had the ability and willingness to live independently. In contrast, the 74-85 age group tended to rely more on traffic signs and their familiarity with the city when planning routes. Moreover, with age, individuals become more patient and more focused on community resources, such as volunteer activities and neighborhood support. They begin to adapt to collaboration and companionship. Design Suggestions: Based on the feedback of the above advantages, for the 65-73 age group, most elderly individuals were physically healthy and experienced with internet and navigation software. The focus of our design lies in identifying the factors influencing elderly individuals' experience sharing and facilitating the realization of their self-value through appropriate service design. For the 74-85 age group, as their physical decline and mobility decrease, their main daily activities become more confined to the community. Effectively utilizing community resources to foster interaction and communication between the elderly and other members can help alleviate loneliness and create a supportive community environment. * \"Relevant Advantage Retrieval for Needs\" Test Process  
Query and Feedback: Based on the discussion and analysis, we believe that route planning and navigation are crucial for elderly individuals during travel. Therefore, we investigated the capabilities and resource advantages related to the \"provide software teaching\" requirement, and the results are shown in Figure 17. A total of 12 relevant elderly advantages were identified, with the light-blue nodes representing resource advantages and the light-purple nodes representing capability advantages. Figure 16: Functional verification of advantage feature retrieval. Graph Analysis: (1) Overall, among the advantages related to the \"provide software teaching\" requirement, elderly individuals' resource advantages are more evident. (2) In the Neo4j database, by double-clicking on an advantage node, we can view the category to which each advantage belongs. Personal and community resources are more prominent, with three advantages in personal and family resources, three in community resources, and two in technology equipment resources. In terms of capabilities, prior knowledge is more prominent, with two advantages.