# Integrating Interactive Detection of Code Smells into Scrum: Feasibility, Benefits, and Challenges
## 6 Online Validation: Insights from a Controlled Experiment
### Results
#### 6.3.3 Post-Experiment Results (Phase 3)  
In the third phase of the experiment, participants were asked to complete a questionnaire to share their perceptions about the proposed approach that integrates ID into Scrum for software development. The following are the quantitative results and qualitative excerpts from the responses of the 24 participants in the controlled experiment. _Overall Perception_: The first part of the questionnaire aimed to capture participants' general perceptions regarding the use of the proposed approach. Most participants evaluated the approach positively, with 83% reporting significant benefits in terms of code quality and development agility. Participants mentioned benefits such as faster identification and resolution of code smells, resulting in cleaner and higher-quality code. They also highlighted the efficiency of constantly reviewing and refactoring the code, leading to more organized development and a system with fewer bugs. The agile approach of Scrum helped them maintain a good work pace, meet deadlines, and prioritize important tasks, ultimately delivering a stable and reliable system. However, 17% of participants mentioned facing challenges related to the need for learning and adapting to the new practices. Among the qualitative responses, some participants shared their experiences of facing challenges when initially adopting the proposed approach. They mentioned a learning period and the need to become familiar with the new practices. Regardless, as time went on, they recognized the benefits and positive outcomes that these practices brought to their work. Despite the initial difficulties, with their team's support, they overcame challenges and became more proficient in using the approach. _Scrum_: In the second part of the questionnaire, participants were asked to evaluate the adaptations made in the Scrum framework during the experiment. Regarding role adaptations, participants were asked if they agreed with creating the new role. Approximately60% of participants fully agreed, while about 30% partially agreed with this proposition. The proposal was generally well received, and participants saw value in including this new role to improve the development process and code quality. The participants were also asked if they believed other role adaptations besides the new \"quality evaluator\" role were necessary. More than 50% of participants entirely disagreed, while another 30% partially disagreed with this statement. Regarding artifact adaptations, the participants were questioned about including the new artifact. Over 80% of respondents fully or partially agreed with this proposition. Including this new artifact can provide a clearer and more detailed view of smell detection and refactoring activities, facilitating communication and collaboration among those involved in these activities. Participants were also asked if they believed that other artifact adaptations were necessary. The results revealed that most participants disagreed (62%) or remained neutral (29%) regarding the need for other artifact adaptations beyond the inclusion of the \"Global List\". Regarding event adaptations, participants were questioned about their agreement with the adaptations made to Scrum events. The results indicate that 45% of participants fully agreed with the proposed event adaptations, while 32% partially agreed. This suggests that most participants view the event adaptations positively, although not everyone agrees. Participants were also asked if they believed additional event adaptations would be necessary beyond the proposed ones. The results revealed that most participants disagreed (42%) or remained neutral (29%) regarding the need for further event adaptations beyond the proposed ones. _ID Technique_: The third part of the questionnaire evaluated the ID technique used during the experimental activities. The participants were asked to express their agreement to assess whether the ID technique facilitated the identification and understanding of code smells.