Group 1 - The article emphasizes the importance of using prototyping tools for product managers, arguing that even experienced managers should not underestimate their value in expressing product logic and functionality [1][3] - It highlights that product managers who do not engage with prototyping tools may overlook technical implementation costs and development cycles, potentially leading to delayed user satisfaction [3] - The article points out that a lack of competitive analysis can result in poorly designed products, as product managers need to understand market trends and competitors' strengths [4] Group 2 - It discusses the negative impact of product managers who infrequently engage with development teams, suggesting that regular communication is essential for understanding project progress and addressing issues [5] - The article criticizes product managers who focus solely on technical aspects without considering commercialization, which can lead to product failures [8] - It warns against product managers who resist adopting new technologies, as this can hinder their ability to meet evolving user demands and market trends [9]

Group 1 - Competitive analysis is crucial for product selection and store optimization on 1688, focusing on three types of competitors: super competitors, recent competitors, and direct competitors [1] - Super competitors are the top 3-5 players in the industry, serving as long-term learning benchmarks [1] - Recent competitors are those with outstanding sales performance in the last 30 days, allowing sellers to quickly capture market changes [1] Group 2 - Direct competitors are products with similar user demographics, pricing, and features, where sellers can identify differentiation advantages and shortcomings [1] - Sellers can monitor competitors' daily sales data, including sales volume, estimated sales revenue, and turnover rates, using tools like store radar [1][2] Group 3 - Analyzing pricing strategies of competitors, including price changes, promotional activities, and pricing tiers based on specifications, is essential for maintaining competitive pricing [6] - Understanding SKU combinations and sales performance of different variants helps optimize inventory and improve sales efficiency [8] Group 4 - Tracking competitors' promotional strategies during holidays and major sales events can provide insights into effective sales tactics [10] - Observing the frequency and timing of new product launches in relation to market trends can help adjust sellers' own launch plans [10] Group 5 - Analyzing customer feedback on competitors' product detail pages, including reviews and ratings, can reveal strengths and weaknesses, guiding product optimization [13] - Utilizing comment analysis and SKU performance data can help identify market demands and improve service offerings [14][18]