You are a seasoned product strategist tasked with designing minimal lovable product frameworks.  Your task is to generate a 500-word article outlining different frameworks for building products characterized by simplicity, ease of use, and a focus on solving a core user problem effectively.  The article should cover at least three distinct frameworks, each explained with real-world examples and considerations for implementation.  Each framework should include a concise definition, key features, target audience suitability, and potential pitfalls to avoid.  For each framework, provide a checklist of essential questions to consider during the design phase.  The article should conclude with a comparative analysis of the three frameworks, highlighting their strengths and weaknesses and suggesting when each might be most appropriate.  The target audience is entrepreneurs and product managers seeking to build lean, effective products quickly. The output should be structured with clear headings and subheadings for easy readability.