01 Process starting from the problemThis kind of process typically has three steps: question → data → answer . Generally, business departments will think along this path. For example, if you are a sales manager, you are most concerned about your performance, so you will first look at:
Of course, you may think more deeply. For example, the company currently has a performance ranking award: the top five teams in the country with the highest year-on-year growth each month can receive a bonus. It is already the 20th, and you really want to know if you have a chance to win this award. Then, you will further analyze:
Note! Question 2 is much more complicated than Question 1, because Question 1 only requires statistics of historical data, while Question 2 requires predicting the trend in the next 10 days. There may be several ways to predict, such as:
This is what we often call: complex requirements. When the requirements become more complex, the data analysis process will also become longer, mainly in the data link. The more complex the method, the more data preparation is required. So, what are the complex methods? 02 Analysis process under four levels of complexityComplexity level 1: Understand the current situation. This is the simplest, and you can directly count historical data, such as the number of new users added this year/the cumulative sales performance as of January 3; the number of product inventory at the time point of January 3, etc. Note! Simply listing data cannot explain whether the current situation is good or bad. Data + judgment criteria are needed, such as cumulative sales performance + performance assessment criteria, so that problems can be discovered. In this case, the data analysis process is: the business wants to understand the current situation → statistical data indicators + judgment criteria → describe the current situation. Complexity Level 2: Cause Analysis. A typical question is, for example, a business asks: "Why did my performance not meet the target?" Note that the processing flow is different when the business has assumptions or not: In short, if you want to go deeper, you must make assumptions about the business question. Otherwise, if the data breaks down the indicators, it is very likely that only superficial conclusions such as: "Because the number of people is small, the standard is not met. It is recommended to increase the number of people!" will be output. Complexity level 3: Optimizing performance. A typical question is, “What should I do to achieve the best performance?” At this point, you need to complete all the questions in the previous two levels of complexity before you can reach a conclusion. Therefore, the performance optimization process will be particularly long. Many data analysts do not know how to make suggestions for business improvement. In fact, it is because they lack the preparation of the previous steps. They do not understand the situation at all and certainly cannot make suggestions directly. Complexity Level 4: Predicting trends. In the previous section, we have given an example of prediction. In fact, all prediction problems are very complex. At least you need to understand the current situation, know the problem points, know whether the business has plans to make improvements, and collect a lot of information before you can make a reasonable prediction. at this time:
In short, the more complex the business questions are, the longer the analysis process needs to be and the more preliminary preparation is required, otherwise it will be difficult to output valuable conclusions. 03 Process starting from dataThere is another situation where the business side does not actively raise requirements, but the data analyst needs to actively read the business meaning from the data and find business problems. The basic process at this time is: data → problem → answer. However, this process often fails because many data analysts only see the data and do not understand the business situation. Therefore, they do not know how to interpret the number. For example:
Therefore, this article uses a long section to introduce how to conduct analysis from a business perspective, in order to remind those students who stare at reports every day to communicate more with the business and deepen their understanding of the business background/business status. Fortunately, many companies still have close communication between business and data, so the basic process of "data → question → answer" can be optimized.
All the above processes are summarized in the following figure for your convenience: Author: Down-to-earth Teacher Chen WeChat public account: Down-to-earth Teacher Chen (ID: gh_abf29df6ada8) |
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