What is the difference between the sales manager & director of marketing & director of the project?

Sales manager is the person responsible for leading and guiding a team of salespeople.

Marketing director is responsible for the marketing operations of an organization.

Project director generally oversees project teams and smooth running of the team.

Thank you my dear brother Hossam ,,, I will start my answer from the last term of your Q because of inclusiveness relationship with various terms of reference projects .Well the project director is responsible for managing a project at the strategic level. The project director is typically the project's point person, managing resources and overseeing finances to ensure that the project progresses on time and on budget. The director reviews regular progress reports and makes staffing, financial, or other adjustments to align the developing project with broader outcome goals. A project director generally oversees a team of project managers and project teams

A project director has the authority to make key decisions, adjust budgets and add resources and related project governance processes. A project director receives regular reports from the project manager and/or team leads. Also, he or she reports directly to senior management, such as a vice president (VP),   and/or company president. 

In addition, a project director often manages multiple projects simultaneously .Titles such as  marketing manager or marketing director can be used with completely different meanings at different companies, depending on both the size of the company and how their marketing operations are structured.The difference between the two position can only be quantified when a company has a marketing department large enough to use both titles for different positions . In a company large enough to have more than one brand or product line, marketing managers are usually in charge of a single line or brand while the marketing director oversees all of the marketing managers. For example, a company might have one department in charge of selling long distance services and another department in charge of selling cell phone services. Each department would typically have its own marketing manager, and both marketing mangers would report to the same marketing director, who would be in charge of marketing strategy for the whole company. In companies large enough to distinguish between the terms, the focus of the marketing manager is on day-to-day marketing efforts, while the focus of the marketing director is on big-picture strategic marketing

sales manager negotiating the people......director of marketing....checking and listing and reviewing the sales of the company while the director of the project approving all the transaction of the sales

Sales Manager is Managing sales associates and anything related to sales, where as project manager is managing the projects and dealing with sales manager to implement the project. and Marketing director, markets the product, profit and loss and over all returns of the business revenue.

Director of Sales Director is responsible for increasing the sale of the company's products and services and raise the level of earnings through the development of plans for it

Marketing Manager is the manager who cares industry company brand image in the media and in ads that shopping for products and services for the company as well represented in various  exhibitions and forums industry

The project manager overseeing the project and the proper functioning of the team.

Thank you for the invitation

With previous answers are wonderful answers

agree with Mr.Divyesh Patel  

Marketing Manager main task is how to open up new markets and how to achieve a proliferation of products on the market

The position of sales manager is to achieve the desired results after the market opening process by constant communication with customers and understand the client's desires and transfer this image to marketing to the benefit and improvement in the marketing process

The Project Manager plans, executes, and finalizes projects according to strict deadlines and within budget. 

This includes acquiring resources and coordinating the efforts of his team

It is like the difference between Administartion (represented by director of marketing director of the project)and Management (Represented by sales manager ).

I agree with all above

Beautiful answers by Mr. Patel and Mr. Fouad.