Project Charter: A document issued by senior management that formally authorizes the existence of a project. And it provides the project manager with the authority to apply organizational resources to project activities (来源：英语杂志 http://www.EnglishCN.com)

Project Communications Management: A subset of project management that includes the processes required to ensure timely and appropriate generation, collection and dissemination, storage and ultimate disposition of project information. It consists of communications planning, information distribution, performance reporting, and administrative closure.

Project Cost Management: A subset of project management that includes the processes required to ensure that the project is completed within the approved budget. It consists of resource planning, cost estimating, cost budgeting, and cost control.

Project Human Resource Management: A subset of project management that includes the processes required to make the most effective use of the people involved with the project. It consists of organizational planning, staff acquisition and team development.

Project Integration Management: A subset of project management that includes the processes required to ensure that the various elements of the project are properly coordinated. It consists of project plan development, project plan     execution, integrated change control.

Project Life Cycle: A collection of generally sequential project phase whose name and number are determined by the control needs of the organization or organizations involved in the project.

Project Management (PM): The application of knowledge, skills, tools, and techniques to project activities to meet the project requirements.

Project Management Body of Knowledge (PMBOK): An inclusive term that describes the sum of knowledge within the profession of project management. As with other professions--such as law, medicine, and accounting--the body of knowledge rests with the practitioners and academics that apply and advance it. The PMBOK® includes proven, traditional practices that are widely applied, as well as innovative and advanced ones that have seen more limited use.

Project Management Professional (PM P®): An individual certified as such by the Project Management Institute (PMI®).

Project Management Software: A class of computer applications specifically designed to aid with planning and controlling project costs and schedules.

Project Management Team: The members of the project team who are directly involved in project management activities. On some smaller projects, the project management team may include virtually all of the project team members.

Project Manager (PM): The individual responsible for managing a project.

Project Network Diagram: Any schematic display of the logical relationship of project activities. Always drawn from left to right to reflect project chronology. Often referred to as a PERT chart.

Project Phase: A collection of logically related project  activities, usually culminating in the completion of a major deliverable.

Project Plan: A formal, approved document used to guide both project execution and project control. The primary uses of the project plan are to document planning assumptions and decisions, facilitate communication among stakeholders, and document approved scope, cost, and schedule baselines. A project plan may be summary or detailed.

Project Plan Development: Integrating and coordinating all project plans to create a consistent, coherent document.

Project Plan Development: Carrying out the project plan by performing the activities included therein.

Project Planning: The development and maintenance of the project plan.

Project Procurement Management: A subset of project management that includes the processes required to acquire goods and services to attain project scope from outside the performing organization. It consists of procurement planning, solicitation, source selection, contract administration, and contract closeout.

Project Quality Management: A subset of project management that includes the processes required to ensure that the project will satisfy the needs for which it was undertaken It consists of quality planning, quality assurance, and quality control.

Project Risk Management: Risk management is the systematic process of identifying, analyzing, and responding to project risk. It includes maximizing the probability and consequences of positive events and minimizing the probability and consequences of events adverse to project objectives. It includes the processes of risk management planning, risk identification, qualitative risk analysis, risk response planning, and risk monitoring and control.

Project Schedule: The planned dates for performing activities and the planned dates for meeting milestone.

Project Scope: The work that must be done to deliver a product with the specified features and functions.

Project Scope Management: A subset of project management that includes the processes required to ensure that the project includes all of the work required, and only the work required, to complete the project successfully It consists of initiation, scope planning, scope definition, scope verification, and scope change control.