awarding the responsibility of the job. The enterprise organization structure design and the position establishment have divided the power acquisition and the responsibility attribution of the post, the job standard carries on the specific description to the job responsibility. The duties and powers defined in the job standard are the content of authorization.The post authorization is the enterprise organization behavior, but is not individual behavi
(). It has a parameter that indicates the name of the property to be called.6) _ set (): When the program tries to write a nonexistent or invisible member attribute,PHP will automatically execute _ set (). It contains two parameters, indicating the property name and the property value.7) _ tostring (): When the program uses echo or print to output an object,This method is automatically called. This method is used to convert an object into a string and then output the object. __Tostring () has n
; set;}}If the properties of Policecar are many, the New () method will become very large, and the readability and maintainability of the code will be reduced. From the "duties of class" Perspective, the Policecarcontroller class assumed the responsibility of creating policecar, and we should take this responsibility out. After refactoringThe Policecarcontroller class is intuitive after refactoring, and the New () method is removed.Now that it relies
1. IntentionsAdd some extra responsibilities to an object dynamically. For added functionality, the decorator mode is more flexible than generating subclasses.2. AliasesWrapper Wrapper.3. MotivationAdd some functionality to an object rather than to the entire class. A more flexible way to embed a component in another object.4. Applicability
Add responsibilities to a single object in a dynamic, transparent manner without affecting other objects.
Handle the
duties, but theThe core of the goal is operations Engineer ~! Bridges to all other sectors.It said a lot, I think we should have some concept of operations, for example, if we are a high-speed car on the highway, the OPS engineer is the driver and maintenance workers, theDriver not JaneSingle, sometimes need to in the high-speed driving process to change the tires, and according to the road situation shift, when the car speed faster, the car itself c
particularly difficult to expand;(4) chaotic thinking and fuzzy structure are not conducive to reading the code, which may affect some modifications to the code.In short, such a design is like a poor craftsman hitting a semi-finished product randomly. It is far from the beauty of design, and even the most basic design elements are not available. Barely say, enough.So how should we design it to overcome the above defects? In fact, from the above design, we can find some clues to improve the desi
The single Responsibility Principle sole responsibility principleReference http://blog.csdn.net/zhengzhb/article/details/7278174definition:"There is never more than one factor that causes class changes." "or" a class that has and has only one responsibility. "Practical problem : Class C is responsible for 2 different responsibilities R1 and R2, which can cause normal R2 to run abnormally when R1 business changes require class C to be modified.Solution: divide Class C into 2 classes C1 and C2, C1
I'm concerned, I like to add a variety of features to a class in many projects, and C # Forms applications add a variety of code to the form class, and when the requirements change, the form class is always changed, the code gets longer, the maintenance is cumbersome and the flexibility is low.As the big talk design model says, "If a class takes on too much responsibility, it is tantamount to coupling these responsibilities, and a change in responsibility may weaken or inhibit the ability of th
From the beginning to draw the UML diagram has been heard three layers, at that time to check some information there is a general understanding, now to the real study of three layers of course, should be clear thinking.Three layer of existence must have its reason, then use three layer to design the program has what advantage, the answer is "high cohesion, low coupling" how to understand it? Let's understand cohesion and coupling first. Cohesion means that a module in the completion of
health care counter was the same. However, some people buy health care products is to give gifts, take a plastic bag or Kraft paper packaging is not suitable, if let customers in addition to other such as gift shop and other packaging, it seems to the customer is also very inconvenient. in order to better serve customers, Xiao Li decided to provide quality packaging services, to buy a group of boutique gift boxes, ribbons, exquisite wrapping paper and so on. But when the task was scheduled, th
The three-tier architecture is not MVC, MVC is a very early classic program design pattern, M-V-C is divided into three layers, M (model)-V (View)-C (control ). In web development, the three-tier architecture refers to the following: The Dal-databaseaccesslayer, The bll-businessloginlayer, and the user interface layer (ui-userinterface, actually, the BLL layer is called in detail in the webpage background ). This is a basic concept. In the past, I thought that the three-tier architecture is in t
their own background data, but cannot back up, clear, or export data.
Internal control and security domain, separation of duties and prevention of unauthorized access to data
Multi-factor authorization, security rule-based authorization, custom and enforced personalized security rules
Provides detailed security violation reports for regulatory Audit
Transparent to applications, no need to change existing applications
5. # Protect key business data
Framework layer: In recent years, the front-end has developed rapidly. The reason why the front-end is called the front-end is that it can become a profession independently, and JS is no longer a toy ten years ago, in the past, rich client Ria applications may use flash, flex, or Silverlight. Currently, JavaScript can be used to complete most of the functions, therefore, JS, as a front-end support language, is not only simple coding, but more and more framework things have emerged. More and more
clients. Readers are no longer satisfied with simple forms of reporting, but are pursuing more in-depth comments and analysis and fun.
Where did these in-depth comment analysis come from? It is unrealistic to expect Various editorial and reporter teams. A large self-Media Team has powerful writing and output capabilities. Although the quality is uneven, readers have different tastes, fully releasing self-media content can not only attract a large number of readers, but also bring advertising v
test-driven development methods ).
OOD promises a series of benefits (flexibility and reusability and maintainability). It is designed and developed in OO language. To achieve these benefits conveniently, there are a series of principles to follow, such as SRP, OCP, LSP, ISP, etc.
SRP (single responsibility principle) maintains the simplicity of the class. The class should not take on more than one reason for its changes. Otherwise, the class should be separated and re-constructed, however, if
not only considers these issues, but I just want to explain the differences between the two and omit other problems)
Second, they are divided at different levels.
The three-tier architecture divides the entire project into: presentation layer (UI), business logic layer (BLL), and data access layer (DAL ).
MVC is model, view, and controller ).
Let's take a look at their differences and relationships:
Through this figure, we can know that V is the UI, C is the Bll, and m is the Dal.
The MVC we u
)
Finally, after the pattern is determined, it is our specific implementation. (Of course, a project not only considers these issues, but I just want to explain the differences between the two and omit other problems)
Second, they are divided at different levels.
The three-tier architecture divides the entire project into: presentation layer (UI), business logic layer (BLL), and data access layer (DAL ).
MVC is model, view, and controller ).
Let's take a look at their differences and relation
We often hear about QA and QC, but the division of duties is not very clear, especially for QA tasks in many companies where testers are working. I have extracted a part of this article to share with you.
Source: http://www.ltesting.net
Before we begin to discuss the responsibilities of QA and QC, we should assume that the internal quality assurance system of the enterprise has been built up, that is, the above five processes have been compiled, it h
components.
Applications are simple enough without a layered architecture. Most of the work can be done by calling these components.
Components developed in different languages need to be combined. For example, Asp.net needs to call COM + components written in VB.
Applications must support plug-in technology and can dynamically switch components, such as plug-in technology implemented by. Net reflection technology.
We can choose a component-based architecture.
If
Applications are complex.
I. Fill in the blanks 1. Divide jobs with similar content, difficulty level, responsibility size, and required qualifications into the same
Rank
, Implements the same management,
UseAndRemuneration.2. Authority refers
Legal
Assign a certain power to a position to ensure
Perform Duties, CompleteTask.Ii. Glossary 1. Title Analysis
Job Analysis, also known as job analysis, is a process that clearly defines a specific job and determines what actions are
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