| A fantastic pace has been noticed in the web | | | | hierarchy. Here the user after selecting the |
| sector. As a result, various definite | | | | parent can be able to see the next level of |
| standards and techniques are emerging. Every | | | | navigation. |
| time there is an improvement, the web site | | | | |
| design and applications grow complex, and | | | | Database Operations |
| there is a subsequent impact in the common | | | | |
| web programming too. Several web programmers | | | | Accessing database is a fundamental problem |
| face this problem while making a website. | | | | for web developers. It is a common problem |
| | | | for the While entering the data into the |
| Web programming requires expertise on many | | | | database and editing entries through specific |
| different levels. Skills in user interface | | | | functions or an abstracted database wrapper, |
| design, human machine interaction, | | | | most of the times the data is found to be |
| information design, scripting, code library | | | | erroneous; this makes it a good candidate for |
| development, database design and database | | | | pattern. Nearly all the programmers including |
| queries are some of the important facets that | | | | php programmer, java programmer, sql |
| are supposed to be had in a smart database | | | | programmer and asp .net programmer make this |
| programmer. In many or all of these levels a | | | | phase as an essential part for a smooth |
| web programmer can face problems, and any web | | | | running of any database design. They make a |
| pattern needs to have explained the design | | | | user interface design to clear the process. |
| considerations across any or all of these | | | | |
| levels. | | | | At a higher-level many objects or items, the |
| | | | data used is captured by a row in the |
| As such we need to be able to find a | | | | database. Here exists a common problem for |
| programmer who is aware of the problems area | | | | the web programmers creating a set of useful |
| and can implement the required solutions. The | | | | functions and information based on these |
| programmer jobs include the solution of the | | | | items. |
| problems originated in the day to day web | | | | |
| programming. But first we must know the | | | | Authentication Problems |
| places where the problems usually occur. | | | | |
| | | | The authentication phase needs to be revised |
| The Problems Area | | | | properly with the different levels of a cheap |
| | | | programming. Several familiar mistakes have |
| Form processing: | | | | been there in these levels, and we are to |
| | | | solve them without any delay. |
| Form processing is the first step to record | | | | |
| the problem of getting and verifying input | | | | • The web programmers do nothing as to |
| from a user. It is the main part of all web | | | | record or track any request to authentication |
| applications, though there are many different | | | | in the None Level. |
| approaches for solving this problem available | | | | |
| to the web developer. | | | | • In the Session Level the web |
| | | | programmers used to track this anonymous |
| The basic method remains the same other than | | | | person by the current visit only. |
| the actual content being entered. All forms | | | | |
| should: | | | | • Another problem is there while |
| | | | tracking the anonymous person across numerous |
| • Show an empty form to the user | | | | sessions in the web site in the Visitor Mode. |
| | | | |
| • Confirm the data entered to be valid | | | | • We must authenticate the person when |
| and depict an error if it is incorrect | | | | we finally have the User with the relevant |
| | | | information. |
| • Perform the required action by the | | | | |
| use of the data | | | | These levels should be thoroughly checked up |
| | | | and similar other implementations should be |
| Using either a single or multiple page design | | | | necessitated if need be. The above levels |
| forms can be implemented. A self-referring | | | | should be considered together while in case |
| script is needed for the single page | | | | of authentication. |
| technique, while the user can enter, confirm | | | | |
| and submit the data through multi-page forms. | | | | Error Handling |
| | | | |
| Navigational Structure: | | | | It is a great challenge to build graceful |
| | | | degradation into a website. It is a vital job |
| A consistent look and feel is established by | | | | to hire programmers who can catch the errors |
| a clean, structured navigation and | | | | before they confuse the users. By logging and |
| information design. Users can easily find | | | | notifying the errors a professional coder can |
| their location in the sites through a proper | | | | prevent these errors to happen again. |
| navigation system. | | | | |
| | | | Keeping the site alive even if components are |
| There are at most three kinds of navigational | | | | off-line, the database programmers can handle |
| structures: | | | | any error problem by serving the database |
| | | | requests in the backed-up database that is |
| • Single level navigation carries a | | | | read-only also. |
| list of top level areas. | | | | |
| | | | E-commerce Problem |
| • The user can then drill down through | | | | |
| the different hierarchical parts that the | | | | Using form and authentication any problem in |
| multi-level navigation has created, and they | | | | the E-commerce can be easily solved if it is |
| can find their desired content. Generally the | | | | detected earlier. Only, a particular pattern |
| hierarchy is two level deep to keep the | | | | independent on a particular implementation of |
| display simple. | | | | forms or authentication is to be built. But |
| | | | first an interaction is to be done with the |
| • Third navigational structure is the | | | | user and backend processing of the data. |
| dynamic multi-level navigation that uses a | | | | |