between the project lifecycle and the product lifecycle is such that

The relationshipin some application areas the organisation considers the project lifecycle as part of the product lifecycle.
Typical lifecycle models for information systems projects: 1) waterfall model, 2) spiral model, 3) iterative model 2.2 ProjectStakeholders Project stakeholders (ProjectStakeholders) are individuals and organisations who are actively involved in the project, or whose interests are positively or negatively affected by the implementation or completion of the project, and who also exert influence on the project's objectives and outcomes.