The company can be defined as a form of organization of business, which takes place under a contract that must have four pillars: satisfaction; that is, the consent of the parties to the partnership and eligibility; the age must be more than 18 years, the shop is intended as the place of the company, The reason is often the desire to gain profit, as the company has kinds or forms namely: Limited Liability Company, Limited Share Capital Shareholding Company, Limited Joint Stock Company, and Limited Warranty Company. Steps to establish or establish a company Basic information Determine the type of company: There are many types of companies, and each type has certain conditions for registration and each of its legal responsibilities. Determining the activity of the company: means the type of activity to be practiced either commercially or industrially and others. Business Name: A company name that is visible to the public and has to be written on the company's interface, and here you must choose the appropriate name. Capital: Any amount of money to be invested between partners, and the proportion of each partner. Partners: This means the ability of the person to provide the capital of the company alone, or it needs others to contribute and share with him, and must determine the proportion of their contributions, and whether the partnership will be capital only, or management, or both. Registration of the company: Documents and documents: All documents and documents required for registration of the company must be collected, such as personal identification of the partners or passports, filling in the company's registration form and fees. The registration fees of each company vary according to the company's capital and the type of company.

Or your own registration department to see the fees. The competent department: Often follows the Ministry of Industry and Commerce in the State, the company control department, where the company registration procedures are carried out legally and after completion of these procedures a formal certificate of the company is issued with a specific registration number. Starting the work after the establishment of the company Determine the location or headquarters of the company: Any choice of the right place for the company, the right place and good facilitates many things, including the arrival of customers to the company without difficulty, and then install a banner bearing the name of the company and the type of activity in a prominent place and open to the public for easy to see. Taking Additional Licenses: Any licenses and approvals other than the company's license, it may be necessary to obtain approvals from some official authorities such as the municipality and security approvals, and often formal procedures. Crew: They are the people and employees who will work in the company, and their number is determined as needed.
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Electronic commerce intersects with many disciplines such as accounting, business law, computer science, consumer behavior, economics, engineering, finance, human resource management, information systems management, marketing, robotics and statistical sciences.

Terms in e - commerce
Business (e-business) Edit
A broader definition of e-commerce includes customer service, cooperation with business partners, electronic transactions within the organization, as well as the exchange, sale or purchase of products, services and information.

E-marketplace
Is a market where the seller and buyer meet to exchange goods, services, money and information via the Internet.

Intranet
A local network within a company or government that uses Internet tools such as browsers and Internet Protocol.

External network
Network uses the Internet to connect a set of internal networks.

Social computing
It is a computerized system that includes social interactions and behaviors using a set of tools such as blogs, wikis, social networks and others. It focuses on improving cooperation and interaction between people. Its role in e-commerce allows people to work together, communicate with experts and know the products recommended by their friends.

Social networks
A class of web apps that help connect friends, business partners, or individuals who share certain interests by offering free services such as photo, email, and blogging.

Social trade
Is an e-commerce activity carried out through social networks or social programs such as web applications 2.

Virtual world
A virtual computer simulation, virtual world users have the so-called Avatar, through these virtual characters can user to deal with the virtual environment such as building or sharing places, cars and many other elements. The most famous example of the virtual world is "SECOND LIFE".

Trade Rankings
Nature of business process
Traditional trade (brick-and-mortar)
The process of exchanging goods and / or services and information in a concrete manner.

E - commerce (Virtual) Edit
Exchange of goods, services or information and electronic delivery.

Partial e-commerce (click-and-mortar) Edit
Which divides traditional trade and e-commerce, so that part of the process is electronic and the other part tangible.

From department to department within the company (intra business)
All activities and internal information of the company involving the exchange of goods, services or information between the various departments and individuals within the company. Such as Samsung, contains several different units, each unit manufactures a specific technology and sells it to another unit within the company.

From the company to its employees (B2E)
Is to provide the Company with goods, services or information to its individual employees. Such as that a company sells a specific product or service to its employees at a premium price and the return on profits is reflected in the company's account.

From consumer to consumer (C2C)
Is the trade between consumer and consumer directly. Such as a trade exchange between a person who owns a musical instrument and wants to sell it and someone he wants to buy.

C-Commerce
Are those persons or groups that communicate or collaborate electronically. Such as two or more companies collaborating electronically to design and produce a particular product.

From the government to its citizens or to the companies (E-Government)
Is that government units purchase or provide products, services or information to or from their individual or corporate citizens. Such as applying for a grant to the Ministry of Education through the ministry's website.

Factors that led to the spread of e-commerce

References
^ Turban, E. (2015). Electronic commerce: a managerial and social networks perspective. Cham: Springer.
The Tunisian Law on Electronic Trade and Exchange
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