What Is a Project Life Cycle?

The project life cycle is all stages of a project from conception to completion. All projects can be divided into several stages, and all projects, regardless of their size, have a similar life cycle structure. The simplest form consists of four main phases: the concept phase, the development or definition phase, the execution (implementation or development) phase, and the end (test run or end) phase. The number of phases depends on the complexity of the project and the industry, and each phase can be broken down into smaller phases. ^[1]

Project life cycle

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The project life cycle is all stages of a project from conception to completion. All projects can be divided into several stages, and all projects, regardless of their size, have a similar life cycle structure. The simplest form consists of four main phases: the concept phase, the development or definition phase, the execution (implementation or development) phase, and the end (trial operation or end) phase. The number of phases depends on the complexity of the project and the industry, and each phase can be broken down into smaller phases. ^[1]

In the early stages of determining a project, project management is usually enthusiastic, but the goals are not clear. Therefore, in the initial stage of the project life cycle, the most critical task is to clarify the concept of the project and develop a plan, and make it relevant to future activities The place fits. At this stage, the following aspects need attention.

At the start of the project, the planning of the project will gradually become a reality, including some to achieve

After each task is started, the progress of the project's various tasks will accelerate. From the perspective of the responsible person, the protagonist of the project at this stage should be the project team or individual and the partner at this stage. The focus of project management will also change from the early maturity stage to a more mature stage closer to the completion of the project. The following mainly describes the focus of several project management.

As project

Most project life cycle descriptions share the following characteristics:

(1) The requirements for costs and staff are relatively small at first, and they will be more and more in the backward development process, and will decrease sharply when the project is about to end.

(2) At the beginning of the project, the probability of success is the lowest, while the risks and uncertainties are the highest. As the project moves forward, the chances of success are getting higher and higher.

(3) In the initial stage of the project, the ability of the personnel involved in the project has the greatest influence on the final characteristics and final cost of the project product. As the project progresses, this influence gradually weakens. This is mainly because with the gradual development of the project, the cost of inputs is constantly increasing, and errors that occur are constantly being corrected.

The sequence of most of the phases identified in the project life cycle usually involves some technology transfer or transfer, such as design requirements, operational arrangements, and production design. Before the next stage of work begins, it is usually necessary to check and accept the results of the current stage of work. However, sometimes the successor phase begins before the work of the previous phase has passed acceptance. Of course, this can only be done if the risks posed by it are within acceptable limits. This phase overlap is often called "quick follow-up" in practice.