The codes are global because it depends on the site what it looks like to users. Programmers must have ideas and be able to test systems. Sites depend on the performance and capacity of the codes. I should have skills that match the code. The structure of a page depends on the skills I have. Programs are one of the things I work on in my job. I need to know whether the codes work or not by testing them, including writing them in software. I have to keep them and manage them to update it. Additionally, controlling website traffic will ensure its security. A database includes data information to produce faster, accessible, maintained and renewed data. The database software is used to store and combine the data I process on a daily basis. To illustrate, a data information as personal data connected to user information. The database continues to be essential to organizations that keep them in business. A database is a large amount of data that I work with carefully in every database in the organization. In other words, by computer information system, I mean database, it is up to me to deliver them to correct errors.