Process flow and data flow

Computer room charge system cooperation began, the computer room system processing flow and data flow, has been collated, painted a few two, where there are wrong ideas, warmly welcome everyone to correct.

The processing flow is as follows:

Administrator login system, you can "set up basic data", "Change Password", "View operator work record" and "Add and remove users", and then to "enroll" students, after registration, the operator can conduct "student basic information Maintenance", students can "up and down", then, the general user can " Check the status of students on the machine, records, statistics ", when the student balance is insufficient, you can" recharge ", and then, the operator can" view the amount of money ", the average user can" view the student recharge record, balance "; students can ask the operator to" return the card "and the operator can" view the refund amount ". At the end of the day, the administrator can "checkout" the operator and generate a bill. Finally, exit the system.

The data flow is below:

After the administrator adds the user, insert the data into the T_user table, which has the user name and password of the operator, the general user, and the administrator. After the operator logs on to the system with the user name and password, the student can register and insert the information into the T_card and t_student tables, the operator can perform "Basic Student information Maintenance" for the two tables, the general user "view the student balance", students can use the card number to go up and down the machine; The "T-linenote" will be generated and the operator can "view the on-machine statistics" and the user can "view the on-machine record, the computer status"; Students can have the operator "recharge" the card while inserting the top-up record to the T_recharge, and the operator can "view the amount received" from this table , of course, the student can ask the operator to "return card", and insert the return card record to T_cancelcard, the operator can "check the amount of refund" from this form; the administrator "checkout" the operator for a day's work and produce the Bill T_bill, the administrator can view the "Bill" at any time, of course, Administrators can set charges and update data to T_base.

Computer room cooperation began, I and Zhou Kun, 丽杰 a group, feel very good oh! We have so far discussed two times, everyone thinking or different, he said his view, she has her ideas, so everyone a discussion, evaluate pros and cons, choose a program, such a process, feel very good. Although, the computer room cooperation has just begun, but from these two times small cooperation, I feel, we usually, although and ask each other questions, but such discussion, still a little, suggest we can each stage of this discussion study, should improve their interest in learning, at the same time, also improve the learning effect.

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Process flow and data flow