设计模式第三堂课

1.标识用例

Index	Name	Actor	Relationship	Priority	Complexity
UC1	Login	P/MM/SM/S/D	Extend(UC2,UC1)	Middle	Small/1-1.5pw
UC2	Register	P/MM/S/D
……
UCi	Order meal	P	Extend(  ,   ) Include(  ,   )	High

 

PS:

1.    relationship：extend（子用例，基用例）、include（基用例、子用例）

2.    priority：（1）数字标识：1（高）、2……

        （2）high、middle、low

3.   complexity： 工作量/…人周（人月）  eg. large/2-2.5pw

 

2.    High Level UC (高级用例分析)—标识用例边界

TUCBW—用例起始边界

TUCEW—用例结束边界

 

eg. Login

TUCBW: Patron clicks “login” button on mainpage

TUCEW: Patron receives login result messageon main page

 

Index	Name	Actor	TUCBW	TUCEW
UC1	Login	P	Patron clicks “login” button on main page	Patron receives login result message on main page

 

 

3.    Extended Level UC (扩展用例分析)

UC1 Login

Name	Login
Context	The user input some information to login the COS
Actor	P\CS\MM\MD\SM
Basic Steps: 1. P clicks login button on main page 2. Cos show “login” dialog with Tel.no ,verified code and password input fields, also “get verified code” ,”login” ,and “cancel” button   3. P inputs Tel.no , clicks “get verified code” button 4. COS sends cod user 5. User get verified code and filled it into field, then input password click login button 6. COS validates the data and shows the result 7. P receives login result message on main page
Alternative Steps: 4.1 IF COS verified Tel.no success 4.1.1 sends the verified code to user 4.2 ELSE 4.2.1 COS shows failure message to user 4.2.2 P saw the message choose to correct it or register

 

PS:

1.    Basic Steps:列出正常步骤（即假设输入的都是有效数据）

2.    Alternative Steps:列出分支步骤（异常情况）

 

扩展用例表

UC1 Login

Actor	System
	0.COS system display front page
1.TUCBW: P clicks login button on main page	2. COS shows ‘login’ dialog with Tel.no ,verified code and password input fields, also ‘get verified code’ ,’login’ ,and ‘cancel ’ button
3. P inputs Tel.no , clicks ‘get verified code’ button	4. COS sends cod user
5. User get verified code and filled it into field, then input password click login button	6. COS validates the data and shows the result
7. TUCEW: P receives login result message on main page