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        本章主要考虑了实际工程的反射，长处和弱点，以及作者的知识的发展以及进一步的发展。他们将在下面的章节中描述。
       This chapter mainly considers the reflection of the actual project, strengths and weakness, and the development of the author’sessay knowledge as well as further development. They will be described in the following sections.

        在2节中，该系统的弱点已经提到。因此，开发商将在此问题上提供一些建议。
      In section 2, the weaknesses of the system have been mentioned. Hence, the developer will provide some suggestions on this issue. 

        事实上，它是可利用谷歌地图获得距离。作为一个结果，进口谷歌API进入这个系统，可以实现远程将自动进入邮编计算是一个好主意。如果这样的课程表，可以节省更多的时间和提高效率的调度。
      In fact, it is available to get the distance using Google map. As a result, it is a good idea to import Google API into this system so that it can be achieved that the distance will be calculated automatically once the postcode is entered. If so, the timetablers can save more time and improve efficiency on scheduling. 

      As mentioned above, it is common that the system is used by multi-users at the same time. As a result, the use of concurrency control is very necessary. In detail, a read block that is shared and a write block that is exclusive can be given users but a block can be given one user once only and a user can just hold one block once. In other words, when a user is changing the room availability, anyone else can’t have the rights to edit the availability. Once the user releases the write block and system confirm the information update has been committed, other user can get the block. 

      As mentioned above, some details can’t be changed freely. For example, the information on room availability is shared by all timetablers. In other words, every one is given the right to read this detail. However, the write privilege should have to be managed strictly. The developer suggests https://www.51lunwen.org/AmericaThesis/  that all room availabilities are set as available initially; once the status is set as unavailable by a timetabler, anyone else will have no the right to reset unless that timetabler resets it as available again. In this way, the data security and reliability may be improved a lot.


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