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The art of software testing second edition p7

Cuối cùng, kể từ khi cả hai chiến lược gia tăng, lợi thế của thử nghiệm gia tăng không lặp lại ở đây, chỉ có sự khác biệt giữa kiểm tra từ trên xuống và từ dưới lên sẽ được thảo luận.Thử nghiệm trên xuống.Các chiến lược từ trên xuống bắt đầu với đầu, hoặc mô-đun, ban đầu trong chương trình. | 136 The Art of Software Testing and 1980s. Mass-market systems do better today but you still will encounter unhelpful messages such as An unknown error has occurred or This program has encountered an error and must be restarted. Programs you design yourself are under your control and should not be plagued with such useless messages. Even if you didn t design the program if you are on the testing team you can push for improvements in this area of the human interface. 4. Does the total set of user interfaces exhibit considerable conceptual integrity an underlying consistency and uniformity of syntax conventions semantics format style and abbreviations 5. Where accuracy is vital such as in an online banking system is sufficient redundancy present in the input For example such a system should ask for an account number a customer name and a PIN personal identification number to verify that the proper person is accessing account information. 6. Does the system contain an excessive number of options or options that are unlikely to be used One trend in modern software is to present to the user only those menu choices they are most likely to use based on software testing and design considerations. Then a well-designed program can learn from the user and begin to present those menu items that individual users frequently access. Even with such an intelligent menu system successful programs still must be designed so that accessing the various options is logical and intuitive. 7. Does the system return some type of immediate acknowledgment to all inputs Where a mouse click is the input for example the chosen item can change color or a button object can depress or be presented in a raised format. If the user is expected to choose from a list the selected number should be presented on the screen when the choice is made. Moreover if the selected action requires some processing time which is frequently the case if the software is accessing a remote system then a message should be .