Project Life Cycle refers to the project from start to completion of a series of stage experience. It provides a basic framework for project management.
Project life cycle can be: predictive, adaptive.
General project life cycle ---- beginning of the project; organization and preparation; implementation of project work; end of the project
Project life cycle is usually associated with one or more stages of the development of products, services, or results of these stages is called the development life cycle. Development life cycle can be predictive, Iterative, incremental, adaptive or hybrid mode. Do not go to tangle difference between the project life cycle and the development life cycle, in fact, is roughly the same, only different dimensions of it, there are many projects in most of the extent and development cycles are overlapping, so long as a good understanding of the different types of development life cycle just fine.
There are five development life cycle: predictive, Iterative, incremental, adaptive, hybrid.
Predictive life cycle, determine the project scope, time and cost in the early stages of the life cycle. Any changes to the scope must be carefully managed. Predictive life cycle, also known as the waterfall life cycle. This type applies to fully understand the product, the industry has a solid foundation. This type of development, at an early stage customize all good plan, then implemented as planned, the final one-time delivery.
Iterative life cycle, usually in the scope of the project early in the project life cycle to determine, but the time and cost estimates for the project team with the deepening understanding of the product and revised periodically. Iterative approach is to develop products through a series of repetitive cycle activity, while incremental approach is to progressively increase the functionality of the product.
Incremental life cycle is to increase output by a progressive series of iterative product features within a predetermined time interval deliverables. Only after the last iteration, deliverables have the necessary and sufficient capacity in order to be considered complete.
Adaptive lifecycle belong agile, iterative or incremental type. Before the detailed scope of the iteration beginning has been defined and approved. Life cycle, also known as adaptive or agile change-driven life cycle. Smaller increments, rapid iteration, each delivery the most valuable thing. Frequent deliveries, the parties continued to participate, so that the life cycle, the level of participation of stakeholders is the highest. Applicable to the project need to deal with rapid changes in the environment.
Mixed life cycle is a combination of predictive and adaptive life cycle life cycle. Fully understand or follow the project elements to determine the demand forecasting model development life cycle, and the elements still in development follows the adaptive development life cycle.