This assignment analyzes three peer-reviewed articles focused on pressure ulcer prevention. The first article investigates the effectiveness of soft silicone foam dressings through a randomized controlled trial, highlighting the strength of this methodology in minimizing bias and establishing superiority. The second article employs a qualitative approach, using semi-structured interviews to understand barriers and facilitators in preventing pressure ulcers in nursing homes, emphasizing the value of qualitative data in real-world settings. The third study utilizes a qualitative observational approach to assess the impact of interventions in reducing tracheostomy-related pressure ulcers in critical care units, underscoring the importance of monitoring and recording real-world conditions. The assignment includes a detailed examination of the aims, methodologies, strengths, reliability, and validity of each study, providing a comprehensive overview of the research and its implications for clinical practice.