Jeremiah is part of a group planning a summer fair at which local businesses can run stalls and events. He wants to use his programming skills to develop an app for the fair which businesses will be able to use to communicate information about their activities at the fair with visitors. Which of the following would be the best first step for Jeremiah to take?
杰里迈亚参与了一个策划夏季博览会的小组，该小组计划在博览会上为当地企业设立摊位并举办活动。他想利用自己的编程技能为博览会开发一款应用程序，让企业能够与参观者沟通他们在博览会上的活动信息。以下哪一项是杰里迈亚应该采取的最佳第一步？

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BlackTom AI · Accepted Answer

When tackling a project like Jeremiah's app for a summer fair, the initial step should focus on understanding the real needs and constraints of the stakeholders involved. 
Option 1: 'Find out from the businesses and potential visitors what information and format they think should be used for the app' This is a user-centered starting point, gathering requirements from both business users and visitors to determine what data is needed and how it should be presented. It reduces risk of building features that don’t meet actual needs and helps establish a clear scope early. 
Option 2: 'Develop all of the major algorithms which will be required for the app by drawing flowchart representations' Jumping straight into algorithm design without validating requirements can lead to wasted effort if the proposed features differ from what users want. Flowcharts can be helpful later, but they should be based on confirmed requirements, not assumed needs. 
Option 3: 'Write thorough documentation explaining how the code for the app works' Thorough documentation is valuable, but providing it before you have a functioning understanding of user needs and system design can be premature. It’s better to document decisions after initial requirements are clarified and a plan is formed. 
Option 4: 'Write some sample code to understand how the app might work' Prototyping with sample code can be useful for exploration, yet without user input, the code may reflect assumptions rather than real-use scenarios. Early user input remains more critical to guide the architecture and features. 
In summary, the first step should center on eliciting requirements from both businesses and visitors to shape what the app must deliver, its format, and priorities, before diving into design, documentation, or coding activities.

(72ab92) AP CS Principles 1.1 AP-Style MC Practice 1.1 AP 风格的 MC 练习

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