Strengths: collects large amounts of data over time, can track / compare data over time, allows business to spot patterns / trends , business can make decisions to benefit the business , system automatically updates for each sale/booking, decisions can be made based on data that is specific to them, Weaknesses: outliers skew the data , human error on a booking skews the data, business may make wrong decisions based on skewed data, if staff make a mistake then the data will be inaccurate ,

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