[beauty of software engineering - column notes] 17 | what is the need analysis? How to analyze?

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Column information

1. Columnist ： The treasure jade

2. Column publishing platform ： Geek time

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primary coverage

It can be said that demand is the source of the whole product , Therefore, the result of demand analysis often determines the success or failure of products . If you don't grasp customer needs correctly , You may make a mistake , Step by step in the wrong ！

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One What is demand ？

The user needs It was proposed by the user , Expect to meet the requirements of their own needs .

Product needs After analyzing and refining the real needs of users , Proposed solutions in line with product positioning .

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Two What needs analysis is to analyze ？

In fact, the analysis of user needs , Not an action , It's a process . Demand analysis , It is to refine and analyze user needs , The process of finally forming product requirements .

The demand analysis process for each user's needs , Need to go through Three steps ：

1. Mining real needs
2. Propose solutions
3. Screening and validation scheme

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3、 ... and How to do demand analysis ？

And the user needs of software projects , Never single , But a series of requirements , So for software project demand analysis , You also need to add the steps of collection and sorting . The whole process is iterative , As shown below ：

1. Collect requirements ： Collect and sort out user needs ;
2. Analyze requirements ： Analyze the needs , Mining the real needs of users ;
3. Needs assessment ： Filter out infeasible requirements ;
4. Demand for design ： Propose solutions to user needs , Design into a product plan ;
5. Validation requirements ： Verify whether the scheme is feasible .

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Four Other excerpts

• The needs of most users , Are not necessarily their real needs , We need to see the essence through the phenomenon , To explore the real needs behind it .
• In real projects , Most people's needs analysis is incorrect , It's because the real needs of users are not mined .
• We know the target users , Its usage scenarios and problems to be solved , It can be combined with product positioning , Propose corresponding solutions .
• After choosing the plan , The scheme also needs to be verified , To ensure that the solution can meet the needs of users .
• In the traditional waterfall model , After selecting the scheme , Will be written into product design documents , Follow the corresponding review process , The design will be carried out after the review 、 Development and testing , After the test is completed, the customer will accept it . Agile development , During the whole development process , Every iteration or key milestone , It also requires the customer to conduct acceptance .

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summary

Demand analysis , It is a process of transforming user requirements into product requirements . Do a good job in the analysis of user needs , We need to find out the real needs hidden behind user needs , We should also propose solutions to the real needs of users , Whether the final verification scheme can meet the needs of users .

Demand is the source of the whole product , The reason why many software projects fail is that they don't do a good job of requirement analysis , A lot of waste in software also comes from rework caused by not thinking clearly about requirements . It is very important for a software project to do a good job of requirement analysis .

Do a good job in the demand analysis of software projects , We need to do a good job in the collection and sorting of requirements , Then make a scientific analysis of the collected needs , Evaluate whether it is feasible and prioritize , Design feasible requirements , Finally, we need to verify whether the design results meet the requirements .