【SoftwareTesting】Homework1

　　The errors I will mention after are from the project in the last semester. The project is a Java project which is about a system for the bone marrow donation.

　　Briefly, I met an errers in my project. One is for the logical and the other one is for the messy code.

　　For the Error, I will introduce it in detail. First of all,  the system need a log-in module, and if you do not log in then you are just a common user of this website besides you cannot change any information in this website. However, at first in my system, even if you are not the administrators you can change the information too provided that you remember the URL of the page which is for changing the infomation.

　 　This is a terrible error in the system, it may bring lots of problems in the security. Besides, it may make the website have a lot of wrong information so that make the users confused about that.

　 　Fianlly, I find this error by testing my system. I copy my URL of the page for changing things and then I paste it into another browser. I find I can get into it too. As a result, I find this error and debug immediately. By add serveral lines of the code, the problem has been solved in the end.