The next step after defining tasks, durations, resources, and costs is to establish baselines. A baseline is an approved version of a project plan that serves as a reference point for measuring progress and performance throughout the project lifecycle. A baseline typically includes scope, schedule, cost, quality, and risk parameters. Establishing baselines involves presenting the project plan to key stakeholders and obtaining their formal agreement on the project objectives and deliverables. Baseline approval can help to establish clear expectations, avoid scope creep, and facilitate change control during project execution34

The project manager should validate against the scope statement and ask for sign-off after a system was implemented and testing was successfully completed. The scope statement is a document that defines and documents the project scope, objectives, deliverables, requirements, assumptions, and constraints. The scope statement can help to establish a common understanding and agreement between the project manager and the stakeholders on what the project aims to achieve and deliver. Validating against the scope statement means checking whether the project deliverables meet the agreed-upon scope criteria and quality standards. Asking for sign-off means requesting formal acceptance and approval of the project deliverables from the stakeholders.

A transition plan is a document that outlines how the project deliverables will be transferred to the operations team or the end users, and how the project team will disengage from the project. It typically includes details such as operational training, go-live date, support arrangements, roles and responsibilities, and acceptance criteria. A transition plan is different from a project closeout report, which summarizes the project performance, lessons learned, and final status. A handover to operations is a process of transferring the project deliverables to the operations team, but it is not a document. A phase-gate review documentation is a set of documents that are used to evaluate the project progress and readiness to move to the next phase, but it is not related to the operational handoff. References = CompTIA Project+ PK0-005 Certification Study Guide, Chapter 14: Closing the Project, p. 409-410; [CompTIA Project+ Certification Exam Objectives], Domain 4:
Project Closure, Objective 4.1: Compare and contrast various project closure activities.

The project manager should have prepared acceptable communication channels to avoid the situation of a stakeholder not replying to emails due to intermittent Internet service. Acceptable communication channels are methods or modes of communication that are agreed upon by all parties involved in a project. They may include aspects such as email, phone call, text message, video conference, instant message, or face-to-face meeting. Acceptable communication channels can help to ensure that messages are delivered and received effectively and efficiently and that communication preferences and limitations are respected.