Process flow and Data Flow _ computer room reconfiguration

Computer room fee system cooperation began, the computer room system processing flow and data flow, collated, painted a two, where there is wrong thinking, a warm welcome to correct me.

The processing process is as follows:

Administrator login system, you can "set basic data", "Modify password", "view operator's work record" and "Add and remove Users", then, to "register" the student, after registering, the operator may carry on "the Student basic information Maintenance", the student may carry on "the machine", then, the general user may " View student status on the machine, records, statistics ", the student balance is insufficient, may carry on" the recharge ", then, the operator may" View collects the amount ", the general user may" view the student to recharge the record, the balance "; The student may request the operator to" withdraw the card ", the operator may" View refund Amount " At the end of the day, the administrator can "checkout" the operator and generate the bill. Finally, exit the system.

The data flow is below:

After the administrator adds the user, the data is inserted into the T_user table, which contains the user name and password of the operator, the general user, and the administrator. After the operator logs on to the system using the username and password, can be registered to the students, and insert the appropriate information to the T_card and t_student table, the operator can be on the two tables "Basic Student Information Maintenance", the general user "Check the student balance", students can use card number for the upper and lower computer; Generates a "T-linenote" on the down-machine record, operators can "view on-machine statistics" The general user can "view the machine record, on the machine status"; The student can let the operator "recharge" the card, while inserting the recharge record to t_recharge, the operator can "view the charge amount" from this table. , of course, the student can ask the operator to handle "withdraw card" for oneself, and insert the withdrawal card record to T_cancelcard, the operator can "inquire the refund amount" from this form; the administrator can check the "checkout" of the operator for the day, and make the bill T_bill, the administrator may view "Bill" The administrator can set the billing criteria and update the data to T_base.

        Computer room cooperation started, I and Zhou Kun, 丽杰 a group, feel very good oh. So far, we've talked about it two times, people think or different, he said his views, she has her ideas, so everyone a discussion, evaluate pros and cons, choose the 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 a discussion, or a little less, suggest that we can each stage of this discussion to learn, should improve their interest in learning, but also improve the learning effect.