. If the lifeline is representing an anonymous example of the student class, the lifeline will be "student ". At the same time, because sequence diagrams are used in the project design phase, an unspecified object is completely legal: for example, "Freshman ".
MessageFor readability, the first message in a sequence diagram always starts from the top and is usually located on the left of the diagram. Then the secondary message is added to the graph, which is slightly lower than the previous messa
synchronous call operation) or a stick arrow (if it is an asynchronous signal ). The message/method name is placed on the line with an arrow. Message being passed to the receiving object, indicating the class of the receiving objectAn operation/method. In the example in figure 4, the analyst object calls reportingsystemClass. The analyst object calls the getavailablereports method of the system object. The
What is your occupation? What is your career?
Marketing and Sales (marketing and sales)
Vice-President of vice president of sales
Senior Customer Manager, Senior Customer Manager
Sales Manager
Regional Sales Manager regional sales manager
Merchandising manager procurement Manager
Sales Assistant
Wholesale buyer wholesale purchasers
Tele-Interviewer telephone investigator
Real Estate Appraiser real estate Evaluators
Marketing consultant market consultant
Marketing and Sales Director
Market resear
BRD Business Requirements document, commercial requirements documentation. This is the product declaration cycle in the earliest of the document, and should have been the idea of the brain, its content involves market analysis, sales strategy, profit forecasts, and so on, usually with the eldest brother Ppt, so it is relatively short refining, no product details. The business requirements document focuses on defining the business needs of the project. BRD to be able to name one or more of the bu
Software development processProject ManagementStart: Establish a project or a project stage.Planning: Develop and maintain an actionable plan to complete the project.Implementation: Coordinate human and other resources to implement the plan.Monitoring: monitor and schedule measurements and corrective actions when necessary to ensure project objectives are achieved.Finish: Formally accept the project or project phase and bring it to an orderly and successful conclusion.Demand analysisProgram Desi
Google announced the launch of its virtual operator service in Wednesday, the morning of April 23 in Beijing. With a low price and a flexible data plan, Google's service will put pressure on Verizon and T. But it will take years for Google to pose a real threat to the big US carriers.Google virtual operator service named Project Fi, starting at $20 per month, in addition to a 1GB data traffic price of $10. Google's partner for this service is sprint and T-mobile. However, the service is also fla
is the specific department, the total number of employees of a specific type of work in a specific year, sum_sal is the sum of the salaries of employees hired in a specific department, type, or year.
2> View data is as follows:
SQL> select * from emp_view; DEPTNO JOB HIRE CNT SUM_SAL---------- --------- ---- ---------- ---------- 20 CLERK 1980 1 800 20 ANALYST 1981 1 3000 20
I. Classification of requirements
Requirement analysis is an important process of building software system. Generally, the requirement type is divided into three types:
1, business requirements (business requirement) reflect the organization or customer requirements for the system, product high-level, they are described in the Project view and scope documentation.
2. The user requirements (username requirement) document describes the tasks that users must complete to use the product, as descr
---------------------------------ACCOUNTING clerk 1300ACCOUNTING MANAGER 2450ACCOUNTING President 5000ACCOUNTING 8750RESEARCH Clerk 1900RESEARCH MANAGER 2975RESEARCH ANALYST 6000RESEARCH 10875SALES Clerk 950SALES MANAGER 2850SALES salesman 5600SALES 9400 29025union all combined with the operation plan generated by the stupid method-------------------------------------------------------------------------- -
---------------------------------ACCOUNTING clerk 1300ACCOUNTING MANAGER 2450ACCOUNTING President 5000ACCOUNTING 8750RESEARCH Clerk 1900RESEARCH MANAGER 2975RESEARCH ANALYST 6000RESEARCH 10875SALES Clerk 950SALES MANAGER 2850SALES salesman 5600SALES 9400 29025union all combined with the operation plan generated by the stupid method-------------------------------------------------------------------------- -
||'The minimum wage is'||V_jobtitle.min_sal||','||'The maximum wage is'||V_jobtitle.max_sal||','||'the difference between the two is'||Times||'Times'||','||'the person in this position has'||V_jobtitle.cout||','||'The wage change interval is normal .'); Elseraise E_not_similar; End if; EXCEPTION whenE_not_similar ThenDbms_output.put_line ('Job Title'||V_jobtitle.job_name||'The wage change interval is too large'); End; FetchCurtest intoV_jobtitle; EndLoop; Closecurtest; End;/ withDept_job as(Sele
----------- ---------- ----------- ----------------------- ---------- ------1 Jason 40420 1994-02-01 00:00:00.000 New York W2 Robert 14420 1995-01-02 00:00:00.000 Vancouver N3 Celia 24020 1996-12-03 00:00:00.000 Toronto W4 Linda 40620 1997-11-04 00:00:00.000 New York N5 David 80026 1998-10-05 00:00:00.000 Vancouver W6 James 70060 1999-09-06 00:00:00.000 Toronto N7 Alison 90620 2000-08-07 00:00:00.000 New York W8 Chris 26020 2001-07-08 00:00:00.000 Vancouver N9 Mary 60020 2002-06-09 00:00:00.000
model and business process analysis3. System Analysis and software modeling4. Interface design, interactive design and program development5. System testing and document writing6. Customer training, technical support and after-sales serviceIt is important to note that although these phases have some continuity, they are not completely cut off, such as requirements change management and testing, documentation is throughout the entire project process, and many of the work is done in a cross-cuttin
formation of the requirements specification.The "System design" in the waterfall model can be subdivided into two stages of "architecture design" and "Detailed design", the former is generally grasped and more concerned with the architecture level, including the overall architecture of the system, and the relationship between each subsystem or each module. The latter more attention to detail, including all aspects of system design should be reflected in the detailed design.As a system
dictionary) 4. Further define the problem: (the analyst wants to re-review the problem definition, project size, and goals with the user on the data flow diagram and the dictionary) 5. Export and evaluate the alternative solution (analysis from the logical model, the simplest way to derive an alternative solution, from a technical point of view to solve the problem of different solutions) 6. Recommended course of action (whether or not to continue th
:
SQLCode
1.SelectJob, sum (SAL)FromEMPGroupByJob;
The execution result is:
SQLCode
Job sum (SAL)
2.------------------------------------
3.Analytic 6000
4.Clerk 4150
5.Management 8275
6.President 5000
7.Salesman 5600
Note: grouping query allows you to include group columns in the query list. For the above instances, the job field can be included in the query column because it is grouped by job. This makes the statistical result clear.The total salary of an emp
Article No:38860
Software:ArcGIS-arceditor 9.2, 9.3, 9.3.1, 10 ArcGIS-ArcInfo 9.2, 9.3, 9.3.1, 10 ArcGIS-ArcView 9.2, 9.3, 9.3.1, 10
Operating System:Windows XP, 2003 Server, Vista, 2008 server, win 7
Abstract:This document describes how to use elevation data to locate the land and internal watershed.
Content:
Before using the hydrology tool, you need the grid data on the earth. If you only have contour lines or tin data, you can convert them to raster data by using the topo to raster tool or t
analyst object calls the system object of an instance of the reportingsystem class. The analyst object calls the getavailablereports method of the system object. The system object then calls the getsecurityclearance method on the secsystem object that contains the userid of the number of shards. The secsystem class type is securitysystem. 2
Figure 4: an instance that transmits messages between objects
"Software industry, people-oriented ". The common psychological performance of various personnel involved in the software development process has a significant impact on the entire development process. As a project manager, it is very necessary to analyze it one by one, find out the knot, then remedy the problem, increase communication efforts, and improve development efficiency.
Knot 1: users, due to their different ideas, domestic users prefer to see a real "thing ". The review and signature
redundant information.
Posted by: cloud | January 18,200 6 AM
I agree with analyst and wonna. This is a design concept. The coupling between the network layer and the application layer will cause you a headache in the future. Especially in the context of multi-person cooperation, code writing is more important than conceptual abstraction. I mean the difficulty of code writing is not personal code writing, but the extra thinking is required for others
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