qlikview design best practices

a liberal). So my goal in this article is to start from a practical point of view, give the current Web application of API design best practices (of course, I think the best ~), if it is not appropriate, I will not comply with the standard. Of course, as the basis of design, a few of the principles must be adhered to: Comply with standards when the standar

original interface is not compatible with the two software entities can work together87.If the existing interface is already working, then we will never use the adaptor mode, adapter mode is a "mend" mode, no one will use it at the beginning of the program design88.Common design principles: Single duty principle, Richter replacement principle, dependency inversion principle, interface isolation principle, synthetic reuse principle, least knowledge pr

Now anyone deploying and designing a wireless LAN should use 802.11n wireless access points. This is not only because the price can be comparable to that of 11a/g, but also because of the availability and range of 11n, less wireless access points are required for indoor space. Although some battery-powered devices have not been sold out, most new customers still choose 11n products. In short, unless it is necessary for commercial purposes, you must buy 11n products. When you want to

Unit testing best Practices for domain-driven design (i)After introducing the DDD case, we can finally get to the topic, the test code of this program is based on Xunit, the assertion component is fluentassertions, and similar components have shouldly. In addition, this case uses code contracts for. NET, and if this plugin is not installed, individual tests may not pass correctly.In order to achieve the 2nd

Inflate 1 linearlayout containing 1 TextView 25,000 Inflate 1 LinearLayout containing 6 View objects 100,000 Inflate 1 LinearLayout containing 6 TextView objects 135,000 Launch an empty activity 3,000,000 13. SummaryThe best way to write good, effective code is to understand what your code is doing.If you really want to access the enhanced for loop on the list by using an iterator, make it a deliberate choice,

class.PackagingThe purpose of encapsulation is to hide information, encapsulation should be considered "any form of encapsulation", that is, encapsulation is not only hidden data, but also the hidden implementation details, design details and types of hidden objects.Prototype modeIn JavaScript, each object is cloned from the Object.prototype object, so that we can only get a single inheritance relationship, that is, each object inherits from the Obje

data columns cannot be defined in frequently queried tables, which is based on performance considerations. Separate the data into separate tables. Then use the reference to point to the data, which is the associated query. 19, must use the database design third normal form normalization request, optimizes the performance. Not using a paradigm will result in too much duplication of data in too many tables, overuse of the paradigm will cause too many t

MySQL database design review notes and project practices bitsCN.com Author: Yang Xinqi Recently, three projects were started on hand, and the other two started from the bottom layer. one was started for a while and developed by a small team in a small city, there are no dedicated DBAs for database design and maintenance, which are usually on top of developers. Ho

Web APIs have become more and more popular in recent years, and the simplicity of API design has become particularly important in multi-backend system interaction applications. In general, RESTful APIs are used as our Web API. This article describes some of the best practices for designing simple RESTful APIs.A noun used instead of a verbUsing nouns to define interfaces, verbs should not be used: /

Foreman Mode Contractor-Worker mode: I have read a book titled large-scale distributed system architecture and design practices. The "contractor-worker" mode is used in the user module of anycmd. AC is an implicit project. A project has only one contractor. A contractor can hire many workers. A worker is only employed by one contractor under a project. Every worker is his own contractor. This is the organiz

');}};}) (jQuery); Summary and best practices for jquery design:Writing a jquery plugin allows you to implement the largest class library, abstracting out the features you think are useful and reusable code that can save you time and make your development more effective. Remember when developing your next jquery plugin, you can follow a brief summary below:1, always put your plug-in into the closure:(/* Plugin goes here */}) (JQuery);2, i

Database design is one of the key points of the entire program. In order to support the relevant program running, the best database design is often not achieved overnight. It is a complicated process that can only be repeatedly explored and gradually refined, it is also a process of planning data objects in a structured database and the relationship between these data objects. The following provides 20 best

Introduction: Database design is one of the key points of the entire program. In order to support the relevant program running, the best database design is often not achieved overnight and can only be repeatedly explored and gradually improved. This is a complicated process, it is also a process of planning data objects in a structured database and the relationship between these data objects. The following

Database design is one of the key points of the whole program, in order to support the relevant program operation, the best database design is often impossible, can only repeatedly explore and gradually refinement, this is a complex process, but also the planning and structured database data objects and the relationship between these data objects process. Here are 20 database

Today we will mainly talk about the DB2 Performance Tuning design and configuration of your database. There are many database design and configuration options that can affect the query performance. For more suggestions on Database Design, see the "Planning your Physical Database Design" Best

system extensibility through package Changes. In the traditional object-oriented language, a program that uses a template method pattern, the class of the subclass and the order of execution are constant, so we abstract this part of the logic into the parent class template Method. The method of how the subclass is implemented is mutable, so we encapsulate the logic of this part of the change into Subclasses. By adding new subclasses, We can add new functionality to the system, without altering

is not perfect Design up from the mobile side @media All and (min-width:320px) {}@media All and (min-width:768px){} To get Better browser support, And can reduce the complexity of CSS files 5. Create a core experience6. Determine the breakpointTraditional approach: use some fixed standard widths: 320px (iphone and some other devices), 768px (ipad) and 1024pxThe problem is that devices that are between these

Simple practices for Android design (rational combination) In the previous article (simple practice of Android design (module division), we demonstrated the application store design to illustrate how to divide modules. The module division mainly depends on the business requirements, specifically what business is. The a

has a general understanding. I think it is not an exaggeration to use the "authoritative guide for C ++ Beginners" label. To learn a new thing, the most important thing is to be able to master the basic concepts of orthodox correctness at the entry stage, and not to bend around during the learning process.Path. (Think about the diligent and well-performing folk scientists, I think their main disadvantage is that they have not been trained by formal disciplines and learned what is wrong at the

More and more software applications are migrating to the Web recently. Because there is no platform limit or installation requirements, the software as a service mode on the Web looks very appealing. The core of Web application interface design is Web page design, but its focus is mainly on function. Compared to desktop applications, Web applications must provide a simpler, more intuitive, and sensitive use