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论文作者:www.51lunwen.org论文属性:课程作业 Coursework登出时间:2013-03-21编辑:cinq点击率:3559
论文字数:307论文编号:org201303191632451197语种:英语 English地区:英国价格:免费论文
摘要:在这个项目中,第一,一个完整的问题域已通过分析的要求,收集了来自面向对象timetabler和学生。
在这个项目中,第一,一个完整的问题域已通过分析的要求,收集了来自面向对象timetabler和学生。然后在三个不同的层,即数据访问层的设计系统,业务逻辑层和表示层。在这个阶段,一个解决方案领域收集实施的主要地区。最后,神器的功能是通过使用已知的集成测试。
In this project, first, a complete problem domain has been made through analyzing the requirements gathered from timetabler and students in object orientation. Then the system was designed in three different layers namely data access layer, business logic layer and presentation layer. In this stage, a solution domain was gathered as the main areas of implementation. All functions have been implemented by the developer. Finally, the artifact functionality is known by using integrated testing.
In implementation, the developer has found some problems by using unit testing. These problems are mainly on the communication between buessaysiness logic layer and data access layer. For example, an exception is thrown to tell the developer that the data type is not compatible between Java and MySQL.
However, most unexpected problems are found in integrated testing. As mentioned on implementation chapter, two tables in database can’t be added and updated any data as the foreign key fails. Many functions in business logic should have to execute by communicating with database. As a result, some database transactions related relevant functions are unable to execute. For example, the Timetabler_Account table aimed to record the account information for timetablers but the system is currently not be able to login by any users as the relevant table can’t be inserted into data. In addition, class scheduling has not yet been demonstrated well as a relevant table can’t be added data. In fact, it is frequent to send query https://www.51lunwen.org/ukthesis/ and insert statements from business logic layer to database. Because of the database error, the relevant table will be always null. This leads that there is no actual data available to run the function. Similarly, the function on check of timetable has also not yet been demonstrated well. In contrast, the database transactions can be executed well for information processing in information page.
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