Project Life Cycle vs Product Life Cycle

您可能会认为项目生命周期和产品生命周期相似。他们不是。作为项目经理，您应该知道这两个概念之间的区别，以使您的业务目标与项目目标保持一致。

Since a project produces a product and then ends and the product stays for a longer time, the product life cycle is bigger than the project life cycle.

在PMP考试中，您可能会看到有关此主题的一些问题，因此请很好地了解。

Project Life Cycle

A project life cycle is the sequence of phases that a project goes through from initiation to closure. Projects are undertaken to produce a product, service, or result, and after delivering the output the project ceases to exist and the project life cycle ends.

A project life cycle has many phases, and each phase consists of activities from these process groups: initiation, planning, executing, monitoring and controlling, and closing. The phases are generally sequential and can overlap.

In the initiation phase, you develop theproject charterand identify利益相关者。

这project management plan will be developed during the planning phase and you build the actual product in the execution phase.

Monitoring and controlling activities happen throughout the project, although these processes can overlap or repeat.

In closing, you hand over the product to the client and close the project.

项目生命周期是不一定的一部分the product life cycle. If the project’s output is a service or result, it will not be a part of the product life cycle.

这manbet最新版defines the project life cycles in four phases:

1. Starting the project
2. Organizing and preparing
3. Carrying out the project work
4. Closing the project

这following are some characteristics of a project life cycle:

• Risksare higher when the project starts and decrease as the project progresses.
• Staff requirements are low at the beginning of the project, maximum during the execution, and afterward, may decrease.
• 这cost of changes is lowest at the beginning of the project, and it starts increasing as the project moves further.
• Stakeholder influence is higher at the beginning of the project, and it starts decreasing as the project moves further.
• Most of the funds and time are spent during the execution phase.

Example

假设您有一个建造新摩托车的项目。

首先，您确定利益相关者并收集要求。收集要求后，您将制定制造摩托车的计划。

然后，您开始建造摩托车的真正工作。

Finally, you will hand over this product to your client, and the project will be closed.

Product Life Cycle

这product life cycle describes the stages a product passes through from conception to retirement.

这stages of the product life cycle are development, introduction, growth, maturity, and retirement. These phases are sequential and do not overlap. The project life cycle can be a part of one or more phases in the product life cycle.

In the development stage, you will generate the idea and create the product.

这introduction stage is for marketing the product and starting to sell the product to customers.

In the growth stage the sales increase.

In the maturity stage, the product is accepted, and sales are at their peak.

这last stage is the retirement stage. At this level, you will try to sell out all of your inventory and move on to the next product. This stage happens due to technical advancement or because your product is not selling enough to support its production cost.

Please note that not all products reach the final stage; some are discarded and others never expire.

Product life cycle phases have no duration limit, one phase can be longer than others. For example, the Toyota Corolla and Camry are old products and are still in the growth or maturity stage, and I do not see them coming under the retirement stage any time soon.

A product life cycle can have many project life cycles. For example, the first project life cycle can be the development of the project, and the other, adding a function to the product.

In most cases, the project life cycle is a subset of the product life cycle because the product life cycle continues even after the project is completed.

Example

Let’s consider the product life cycle for a new motorcycle that your company wants to launch.

这first step is idea generation. This includes a可行性研究, market research, and a business plan. Then you initiate a project to build this bike.

Once the motorcycle is ready, your project is complete and the project life cycle ends. However, the product life cycle continues. Now the next phase of the product life cycle begins, and that is selling and marketing the motorcycle.

You will provide after-sale support after selling, and finally, the retirement phase begins.

退休phase may include selling motorcycles at a discounted price.

During the product life cycle, if you add new functions to the product, you will create a new project for this process: for example, increasing the engine capacity of the motorcycle to support faster pickup.

这Differences Between the Project and Product Life Cycle

这following are a few differences between the project life cycle and the product life cycle:

• 产品生命周期可以有一个或多个项目。
• 这product life cycle is longer than the project life cycle.
• 项目生命周期有明确的结尾，而产品生命周期可能没有。
• 这map for the product life cycle is conceptual and depends on market conditions while projects have predictive and well-defined roadmaps.
• 这product life cycle phases do not overlap while the project phases may overlap.
• 阶段通常在产品生命周期中仅发生一次，而项目生命周期阶段可能会重复。
• Phases are sequential in the product life cycle, while in the project life cycle phases may or may not be sequential.

Summary

项目生命周期是产品生命周期的一部分。项目生命周期通常是产品生命周期的子集。产品生命周期从想法的成立开始，并在产品退休时结束。该组织的业务模型取决于产品周期。产品生命周期包括产品的整个寿命，包括更新和升级，但是，在项目的帮助下，产品升级。

Please share your role in the project or product life cycle in the comments section.