小型餐饮管理系统功能模块设计doc 18页.docx

1、小型餐饮管理系统功能模块设计doc 18页小型餐饮管理系统功能模块设计(doc 18页)第一章 设计任务与要求目的及意义：此小型餐饮业管理系统的设计主要是为了方便管理，对于各个进出账目，支出和收入的管理便于系统化，在每月汇总计算中分析运营趋势和餐馆的发展方向进行一定的规划。通过各个月的盈利进行对比，分析那种方式更适合餐馆的有利运营和更好地服务顾客。实现对餐馆内部各种管理的电子化、自动化，提高各个模块之间的办公效率，为高质量餐馆服务提供保证。任务：1.能够实现对该系统进行管理的人员的权限限制；2.使餐馆能够及时并灵活的对菜品品种其价位等进行管理；3.为餐馆提供从客户点餐到结算等一系列操作的服务，

2、使之能简单易行、方便、 清楚地进行管理第二章 系统功能分析一功能需求：餐饮管理系统中主要包括对以下几种管理：账单管理，财务管理，订餐管理，菜品管理，系统管理。（1）系统管理：系统管理包括用户名和密码，主要用于用户登陆界面登陆和查询。（2）账单管理：账单管理包括账单号和餐台，每一个餐台对应一个一个账单号，通过餐台号的记录来对对应的餐台进行记账管理，即就是记录每一个餐台的消费金额。账单管理是财务管理的一个小分支，是服务于财务管理的。（3）财务管理：包括账单号，时间和账目。账目用于记录账单号的消费金额及时间，以便用于结算和汇总。每日的结算要通过对每个餐台号的消费金额汇总来记录，然后由每日的结算汇总得

3、出每月的结算。帐务系统功能的完整性。一旦该系统正式运行，餐厅每日营业帐和全部往来客户帐务的操作结算都将依靠计算机，该系统面对当前餐饮业各种复杂的结算要求应具有很强的应变能力。（4）订餐管理：订餐管理仅包括单价。订餐管理是便于顾客订餐和账单管理时对各个菜品消费金额的记录，这样便于账单管理和财务汇总。 （5）菜品管理：菜品管理包括菜名，菜品类别和菜品品种。菜品管理便于顾客点菜和记录各个餐台的消费记账，菜品品种也便于餐馆的食材采购。二. 数据需求：账单管理中账单号是主键，每一个餐台对应一个账单号。财务管理中账单号是主键，每一个账单号都有对应的时间和账目记录。订餐管理中单价就是主键。菜品管理中菜名是主

4、键。系统管理中用户名是主键。三. 性能需求：该餐饮系统操作简单方便可适应各类中小型餐馆。第三章 系统功能模块设计一. 在该系统功能分析的基础上，考虑PowerBuilder程序编制的特点，得到如下功能模块图。图1 系统功能模块图二. 数据库设计1. 概念结构设计2. 逻辑结构设计3. 数据库实施 1) 数据库及表结构的创建 设本系统使用的数据库名为小型餐饮业管理系统,根据已设计的关系模式及各模式的完整性要求，现在就可以在SQL Server 6.x数据库系统中实现这些逻辑结构。下面是创建基本表的SQL语句：/* = */* Table: CAIPINGL */* = */create tabl

5、e CAIPINGL( CPGL_NAME char(20) not null, CPGL_DANJIA integer not null, CPGL_LEIBIE char(8) null , CPGL_PINGZHONG char(8) null , CPGL_DIANCAI integer null , constraint PK_CAIPINGL primary key (CPGL_NAME, CPGL_DANJIA)go/* = */* Table: XTGL */* = */create table XTGL( USERNAME char(20) not null, PASSWOR

6、D char(8) not null, constraint PK_XTGL primary key (USERNAME, PASSWORD)go/* = */* Table: ZHANGDAGL */* = */create table ZHANGDAGL( ZHANGDAN_NUMBER numeric not null, ZHANGDAN_CANTAI numeric null , CAI_ZHANGDAN_NUMBER numeric null , constraint PK_ZHANGDAGL primary key (ZHANGDAN_NUMBER)go/* = */* Index

7、: RELATION_383_FK */* = */create index RELATION_383_FK on ZHANGDAGL (CAI_ZHANGDAN_NUMBER)go/* = */* Table: CAIWUGL */* = */create table CAIWUGL( ZHANGDAN_NUMBER numeric not null, CAIWU_TIME timestamp null , CAIWU_AMOUNT char(10) null , constraint PK_CAIWUGL primary key (ZHANGDAN_NUMBER)go/* = */* Ta

8、ble: DINGCANGL */* = */create table DINGCANGL( ZHANGDAN_NUMBER numeric not null, DCGL_NAME char(20) not null, DCGL_DANJIA int not null, constraint PK_DINGCANGL primary key (ZHANGDAN_NUMBER, DCGL_NAME, DCGL_DANJIA)go/* = */* Index: RELATION_451_FK */* = */create index RELATION_451_FK on DINGCANGL (ZH

9、ANGDAN_NUMBER)go建立相关触发器，执行级联删除* = */* Database name: MODEL_1 */* DBMS name: Microsoft SQL Server 6.x */* Created on: 2010-1-21 18:15 */* = */* Insert trigger ti_caiwugl for table CAIWUGL */create trigger ti_caiwugl on CAIWUGL for insert asbegin declare numrows int, numnull int, errno int, errmsg var

10、char(255) select numrows = rowcount if numrows = 0 return /* Parent ZHANGDAGL must exist when inserting a child in CAIWUGL */ if update(ZHANGDAN_NUMBER) begin if (select count(*) from ZHANGDAGL t1, inserted t2 where t1.ZHANGDAN_NUMBER = t2.ZHANGDAN_NUMBER) != numrows begin select errno = 30002, errm

11、sg = Parent does not exist in ZHANGDAGL. Cannot create child in CAIWUGL. goto error end end return/* Errors handling */error: raiserror errno errmsg rollback transactionendgo/* Update trigger tu_caiwugl for table CAIWUGL */create trigger tu_caiwugl on CAIWUGL for update asbegin declare numrows int,

12、numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* Parent ZHANGDAGL must exist when updating a child in CAIWUGL */ if update(ZHANGDAN_NUMBER) begin if (select count(*) from ZHANGDAGL t1, inserted t2 where t1.ZHANGDAN_NUMBER = t2.ZHANGDAN_NUMBER) != numrows

13、 begin select errno = 30003, errmsg = ZHANGDAGL does not exist. Cannot modify child in CAIWUGL. goto error end end /* Modify parent code of CAIWUGL for all children in ZHANGDAGL */ if update(ZHANGDAN_NUMBER) begin update ZHANGDAGL set CAI_ZHANGDAN_NUMBER = i1.ZHANGDAN_NUMBER from ZHANGDAGL t2, inser

14、ted i1, deleted d1 where t2.CAI_ZHANGDAN_NUMBER = d1.ZHANGDAN_NUMBER and (i1.ZHANGDAN_NUMBER != d1.ZHANGDAN_NUMBER) end return/* Errors handling */error: raiserror errno errmsg rollback transactionendgo/* Delete trigger td_caiwugl for table CAIWUGL */create trigger td_caiwugl on CAIWUGL for delete a

15、sbegin declare numrows int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* Delete all children in ZHANGDAGL */ delete ZHANGDAGL from ZHANGDAGL t2, deleted t1 where t2.CAI_ZHANGDAN_NUMBER = t1.ZHANGDAN_NUMBER return/* Errors handling */error: raiserror errno errmsg

16、rollback transactionendgo/* Insert trigger ti_dingcangl for table DINGCANGL */create trigger ti_dingcangl on DINGCANGL for insert asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* Parent ZHANGDAGL must exist when inserting a c

17、hild in DINGCANGL */ if update(ZHANGDAN_NUMBER) begin if (select count(*) from ZHANGDAGL t1, inserted t2 where t1.ZHANGDAN_NUMBER = t2.ZHANGDAN_NUMBER) != numrows begin select errno = 30002, errmsg = Parent does not exist in ZHANGDAGL. Cannot create child in DINGCANGL. goto error end end return/* Er

18、rors handling */error: raiserror errno errmsg rollback transactionendgo/* Update trigger tu_dingcangl for table DINGCANGL */create trigger tu_dingcangl on DINGCANGL for update asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /*

19、Parent ZHANGDAGL must exist when updating a child in DINGCANGL */ if update(ZHANGDAN_NUMBER) begin if (select count(*) from ZHANGDAGL t1, inserted t2 where t1.ZHANGDAN_NUMBER = t2.ZHANGDAN_NUMBER) != numrows begin select errno = 30003, errmsg = ZHANGDAGL does not exist. Cannot modify child in DINGCA

20、NGL. goto error end end return/* Errors handling */error: raiserror errno errmsg rollback transactionendgo/* Insert trigger ti_zhangdagl for table ZHANGDAGL */create trigger ti_zhangdagl on ZHANGDAGL for insert asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows =

21、 rowcount if numrows = 0 return /* Parent CAIWUGL must exist when inserting a child in ZHANGDAGL */ if update(CAI_ZHANGDAN_NUMBER) begin select numnull = (select count(*) from inserted where CAI_ZHANGDAN_NUMBER is null) if numnull != numrows if (select count(*) from CAIWUGL t1, inserted t2 where t1.

22、ZHANGDAN_NUMBER = t2.CAI_ZHANGDAN_NUMBER) != numrows - numnull begin select errno = 30002, errmsg = Parent does not exist in CAIWUGL. Cannot create child in ZHANGDAGL. goto error end end return/* Errors handling */error: raiserror errno errmsg rollback transactionendgo/* Update trigger tu_zhangdagl

23、for table ZHANGDAGL */create trigger tu_zhangdagl on ZHANGDAGL for update asbegin declare numrows int, numnull int, errno int, errmsg varchar(255) select numrows = rowcount if numrows = 0 return /* Parent CAIWUGL must exist when updating a child in ZHANGDAGL */ if update(CAI_ZHANGDAN_NUMBER) begin s

24、elect numnull = (select count(*) from inserted where CAI_ZHANGDAN_NUMBER is null) if numnull != numrows if (select count(*) from CAIWUGL t1, inserted t2 where t1.ZHANGDAN_NUMBER = t2.CAI_ZHANGDAN_NUMBER) != numrows - numnull begin select errno = 30003, errmsg = CAIWUGL does not exist. Cannot modify

25、child in ZHANGDAGL. goto error end end /* Modify parent code of ZHANGDAGL for all children in CAIWUGL */ if update(ZHANGDAN_NUMBER) begin update CAIWUGL set ZHANGDAN_NUMBER = i1.ZHANGDAN_NUMBER from CAIWUGL t2, inserted i1, deleted d1 where t2.ZHANGDAN_NUMBER = d1.ZHANGDAN_NUMBER and (i1.ZHANGDAN_NU

26、MBER != d1.ZHANGDAN_NUMBER) end /* Modify parent code of ZHANGDAGL for all children in DINGCANGL */ if update(ZHANGDAN_NUMBER) begin update DINGCANGL set ZHANGDAN_NUMBER = i1.ZHANGDAN_NUMBER from DINGCANGL t2, inserted i1, deleted d1 where t2.ZHANGDAN_NUMBER = d1.ZHANGDAN_NUMBER and (i1.ZHANGDAN_NUMBER != d1.ZHANGDAN_NUMBER) end return/* Errors handling */error: raiserror errno errmsg rollback transactionendgo/* Delete trigger td_zhangdagl for table ZHANGDAGL */create trigger td_zhangdagl on ZHANGDAGL for delete asbegin declare numrows int, errno int, errmsg varchar(255) select num