The requirements document needs to be clearly described and dealt with in detail, so that testing and development can understand it and reduce repeated wrangling. Starting from his own work practice, the author of this article summarizes several issues bulk sms service that need to be paid attention to when writing back-end product demand articles, and shares them with you. 01 A description that was thought to be appropriate may not be the best way to express it How to express "intervals cannot cross each other" in PRD? Case: In the requirements of an Excel import bulk sms service function, the content to be imported is the cost calculation rules corresponding to different weight ranges.
Therefore, in the requirements document, it is necessary to reflect that the weight interval crossing is not allowed. How to describe it? for example: Description 1: For any two data of the same rule, their weight ranges cannot overlap; Description 2: Any two data of bulk sms service the same rule, assuming that the weight interval is ab and cd respectively, then if either case, the two weight ranges are considered to cross. Description 3: For each piece of data in the same rule, the start or end point of each piece of data cannot be between the start and end points of the other lines. analyze: Description 1: For any two data of the same rule, their weight ranges cannot overlap; It bulk sms service seems to be more demand-oriented, but there is actually a problem, that is, there is no definition of what constitutes an intersection.
Therefore, the requirement description is not product manager thinks that intersection is an idiot problem and doesn't need to be defined (and it is), bulk sms service but develops code that is written wrong, there will be inconsistencies in benchmarking. In other words, the product understands this sentence, the development understands the meaning of this sentence, and the test understands it, but there is no guarantee that everyone's understanding is consistent. Description 2: Any two data of the same rule, assuming that the weight interval is ab and cd bulk sms service respectively, then if any one of appears In this case, the two weight ranges are considered to cross. More concrete than description 1,