Project Planning is the second stage of the Project Management Life Cycle (PMLC). In this stage, the project team develops a detailed project plan that outlines the activities, resources, timelines, and budget required to achieve the project objectives. 

Here are some of the key activities that take place during project planning: 

1. Define Project Requirements: The project team works with stakeholders to identify and define project requirements. This involves identifying the deliverables, scope of work, acceptance criteria, and project constraints. 
2. Develop Project Schedule: Once the requirements are defined, the project team develops a project schedule. This involves identifying the tasks, dependencies, duration, and resource requirements for each activity in the project. 
3. Determine Project Budget: The project team determines the project budget based on the requirements and schedule. This involves estimating the cost of each activity, identifying the resources required, and calculating the total project cost. 
4. Develop Project Management Plan: The project management plan is a document that outlines how the project will be executed, monitored, and controlled. This includes the project schedule, budget, quality management plan, risk management plan, and communication plan. 
5. Identify Risks: The project team identifies potential risks that could impact the project’s success. This includes assessing the likelihood and impact of each risk and developing a risk management plan to address them. 
6. Develop Quality Management Plan: The quality management plan outlines how the project team will ensure that project deliverables meet the required quality standards. This includes defining quality metrics, processes, and procedures. 
7. Develop Communication Plan: The communication plan outlines how project information will be communicated to stakeholders. This includes identifying the information needs of stakeholders, the frequency of communication, and the communication channels to be used. 

Overall, project planning is a critical stage of the PMLC. It ensures that the project is well-defined, well-planned, and well-managed, which is essential for successful project execution. By completing the activities in project planning, the project team can develop a comprehensive plan that guides the project team throughout the project.