Database, Curriculum Design, Needs Analysis

In the demand analysis stage of database design, the main personnel involved in the demand analysis are the analysts and users, because the database application system is oriented to the specific business of the enterprise and the department, the analysts generally do not understand, and the same user does not have the ability to analyze the system, which requires effective communication between the two parties, so that the designers understand and be familiar with the user's various businesses, analyze and process, and convert the user's business into the information group required by the designer. That is, the whole dilemma is carried out in a standardized way to form a document data flow diagram for business process description and a document data dictionary for data description.

Summary. Hello, the following is the database for you as the most important part of the application system, but also a piece of great concern for performance testing, so the capacity requirements of the database are also constantly improving, and its requirements are as follows. 1. High throughput meets the interaction requirements of large data volume under high concurrency, and meets the large data volume requirements of data backup or ETL process, and the storage capacity of the database determines the weight of the database.

2. Load balancing satisfies the load balancing capability of the database under high concurrency, and the demand analysis needs to collect data information such as the deployment architecture and load balancing strategy of the database. Adjust in time when the storage capacity of the database is exceeded.

Database. Database.

Demand analysis of the "teaching management" system, about 400 words.

Database. Demand analysis of the "teaching management" system, about 400 words.

Database. Demand analysis of the "teaching management" system, about 400 words.

Database.

1. Needs Analysis:

In this part, according to the requirements of the design topic, fully analyze and understand the problem, describe the functional requirements of the system, and clarify what the problem requires. And what are the restrictions?

1 1 Problem Description.

1 2 Basic Requirements.

1) the form of the input and the range of the input values;

2) the form of the output;

3) the functions that can be achieved by the program;

2. Outline design.

Describes the definitions of all abstract data types used in this program. The flow of the main program and the hierarchical (invocation) relationship between each program module.

1. Data structure.

2. Program module.

3. The invocation relationship between each module and the algorithm design.

3. Detailed design.

Implement all data types defined in the outline design, and write pseudo-coding algorithms for each operation; The pseudo-code algorithm needs to be written for the main program and other modules (the level of detail of the pseudo-code algorithm is recommended to be: according to the pseudo-code algorithm, the high-level programming language program can be directly entered on the computer keyboard); Write out the invocation relationship between the function and the procedure.

4. Testing and analysis.

Test data, output test results, the test data here should be complete and rigorous. and analyze the results.

5. Summary. The summary can include: the harvest of the course design process, the problems encountered, the thinking of the process of solving the problem, the thinking of the program debugging ability, the thinking of the course of data structure, and the understanding of the course of "data structure" in the course design process.

Requirements analysis focuses on surveying, collecting and analyzing users in data management.

The information requirements are required to be handled by the security and integrity requirements

1) Information requirements: It refers to the content and nature of the information that the user needs to obtain from the database, and the data requirements can be derived from the user's information requirements.