How to use PHP to develop a dynamic assessment and scoring system to provide fair and high-quality assessment services

With the rapid development of the Internet, more and more companies are beginning to pay attention to the assessment level and work ability of their employees. At this time, a dynamic assessment and scoring system becomes an indispensable tool. This article will introduce how to use PHP language to develop such a system to provide enterprises with fair and high-quality assessment services.

1. Preparations before development

Before starting development, we need to make the following preparations:

1. Determine the requirements

Before development, we must know what we want this system to do. First determine the main functions of the system, such as assessment content, usage methods, scoring standards, etc.

2. Design database structure

The data that needs to be stored in the assessment and scoring system is relatively complex, such as assessor information, assessee information, assessment time, scoring levels, etc. Therefore, we need to design the database structure before development.

3. Choose appropriate development tools

PHP is a very popular web programming language. We can use PHP as the main development language, with the help of related PHP frameworks (such as Laravel , YII2, CodeIgniter, etc.) to develop applications. At the same time, in order to improve development efficiency and system performance, we also need to choose appropriate development tools, such as development integrated environment (IDE), database management tools, Apache, MySQL, etc.

2. Database design

The database of the assessment and scoring system needs to contain the following tables:

1. user table

This table Used to store user information. It includes fields such as user ID, username, password, email address, user type, creation date, login date, update date, etc.

2. assessment table

This table is used to store attendance information. It includes fields such as assessment number, assessment date, assessor role, assessee role, assessment content, etc.

3. assessment_item table

This table is used to store specific assessment items, such as scores for a certain work ability. It includes assessment item ID, assessment item name and other fields.

4. assessment_item_score table

This table is used to store the score of each assessment item. It includes assessment item ID, rating, score and other fields.

5. assessment_total_score table

This table is used to store the total score of each assessment. It includes two fields: assessment record ID and total score.

3. Introduction to system functions

The main functions of the assessment and scoring system include:

1. Login and registration function

Users must register before use Registration and login are required, and the system requires identity verification.

2. Add assessment score

The assessor can add an assessment, and the person being assessed and the specific content of the assessment can also be added. At the same time, the assessor can give scores.

3. View assessment scores

The system supports assessors and assessees to view rating records.

4. Statistical Analysis

The system will count the scores of each assessment based on the scores and calculate the average score.

5. System development process

1. Environment setup

Before starting development, we need to set up a PHP environment. Here we take the Laravel framework as an example. We need to download Laravel and install Composer to manage dependency packages.

2. Create database

In Laravel, you can use migration to create a database. We can create the database through the following command:

php artisan make:migration create_users_table

php artisan make:migration create_assessments_table

php artisan make:migration create_assessment_items_table

php artisan make:migration create_assessment_item_scores_table

php artisan make:migration create_assessment_total_scores_table

These commands will create the corresponding database table in the migration folder.

3. Database structure design

Next we need to design the table structure of the database. After designing the table structure, we need to generate the database migration file:

php artisan migrate

4. Create model and controller

In order to operate the database For data, we need to use Laravel's models and controllers. You can create it with the following command:

php artisan make:model User

php artisan make:model Assessment

php artisan make:model AssessmentItem

php artisan make:model AssessmentItemScore

php artisan make:model AssessmentTotalScore

php artisan make:controller AssessmentsController

5. Develop front-end page

In order to allow users to better use and operate the system, we also need to develop corresponding front-end pages. Here we can use the Vue.JS front-end framework to achieve it.

6. Develop system functions

The implementation of system functions needs to be based on actual needs. For example, if we need to use a page to add assessment records to the database, we can use the form validation tool in Laravel.

7. Summary

This article introduces how to use PHP language to develop a dynamic assessment and scoring system. Through this article, we know the preparation work before development, database design, system functions and development process. In actual development, development should be carried out according to actual needs to ensure that the system is stable, safe and reliable. In this way, our assessment and scoring system will be able to provide enterprises with fair and high-quality assessment services.

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