Application development is a process that consists of many factors. Two main factors are frontend development and backend development. Backend is the place you handle your business logic, and the frontend is the place you will show the data to the end-user (customer). These two things have to connect tightly. The backend provides APIs corresponding with business requirements, and the frontend connects to these APIs to interact with the user.
The developers that work in frontend and backend have to discuss each other, make the decision together about response format for APIs, how the application flow work. If missing discussions, the backend will provide unnecessary things or not the right format API response to the frontend, and the frontend will take more time for parsing and rendering, and so on. Finally, the application will come up with problems such as bad performance, bugs, or even worse.
Maendeleo ya maombi ni mchakato ambao una mambo mengi. Sababu mbili kuu ni maendeleo ya mbele na maendeleo ya nyuma. Backend ni mahali ambapo wewe kushughulikia mantiki yako ya biashara, na frontend ni mahali ambapo wewe kuonyesha data kwa mtumiaji wa mwisho (mteja). Vitu hivi viwili vinapaswa kuunganishwa kwa nguvu. Backend hutoa APIs zinazolingana na mahitaji ya biashara, na frontend inaunganisha na APIs hizi kuingiliana na mtumiaji. Watengenezaji wa programu wanaofanya kazi katika frontend na backend wanapaswa kujadili na kufanya maamuzi pamoja kuhusu muundo wa majibu kwa API, jinsi mtiririko wa maombi unavyofanya kazi. Ikiwa mazungumzo yanakosa, backend itatoa vitu visivyohitajika au sio majibu sahihi ya API kwa frontend, na frontend itachukua muda zaidi kwa kuchanganua na kutoa, na kadhalika. Hatimaye, maombi itakuja na matatizo kama vile utendaji mbaya, bugs, au hata mbaya zaidi.