It is the other way round – The Scope Baseline is part of the Scope Management Plan. According to the PMBOK Guide, Fifth Edition, The approved detailed project scope statement and its associated WBS and WBS dictionary are the scope baseline for the project. The scope baseline is a component of the project management plan.
http://www.pmchamp.com/components-of-scope-baseline-for-pmp-exam/
Every time a change to the scope of the project is approved, the schedule should be adjusted and a new revision of the baseline should be used instead. Many project management software packages have a feature, which allows the project manager to maintain a baseline schedule and track revisions to it.
http://tenrox.com/glossary/baseline/
Your follow-up question is even more interesting. While it's almost impossible to make perfect sense of every ITTO in the PMBOK Guide, I think there's a case for having Scope Baseline (instead of just Project Scope Statement) as an input to Plan Quality.
http://www.pmhangout.com/discussion/62/the-role-of-scope-baseline-in-quality-planning
In project management, establishing the baseline is the formal end of project planning and the beginning of project execution and control. Controlling the project baseline is critical to project success.
http://tenrox.com/glossary/baseline/
In project management there are three baselines – schedule baseline, cost baseline and scope baseline. The combination of all three baselines is referred to as the performance measurement baseline. A baseline is a fixed schedule, which represents the standard that is used to measure the performance of the project.
http://tenrox.com/glossary/baseline/
The Project Scope pertains to the work necessary to deliver a product. Requirements and deliverables define the project scope, and it is critical that the stakeholder is in agreement with the information discussed in the proposed plan.
http://projectscope.net/
One common question on PMP Exams is about the Scope Baseline, as defined in the PMBOK Guide, Fifth Edition. For example, a question on Scope Baseline could be as follows: Q: The scope baseline consists of all of the documents except: A. Work Breakdown Structure B. WBS Dictionary C. Scope Management Plan D. Scope Statement. Many people get mistaken about the WBS and the WBS dictionary.
http://www.pmchamp.com/components-of-scope-baseline-for-pmp-exam/
Scope planning is a critical step to define the project scope including requirements and deliverables to establish the scope baseline. The scope baseline includes the project scope statement, work breakdown structure, and wbs dictionary. Tools and techniques to define the scope of work may include interviews with subject matter experts, brainstorming sessions, and workshops. Project scope includes requirements and deliverables which are defined by the work breakdown structure and WBS Dictionary. Deliverables are outputs of the work performed to achieve the product, service, or result.
http://projectscope.net/
@ raulcid: I would say yes. Scope baseline clearly indicates what is to be developed and delivered (not more not less). Quality planning would say how to plan for and manage quality-QA and QC. Quality plan details out various quality processes and procedures. QA assists us in how to use and apply those processes to get the desired outcome. QC assists us in ensuring we are only delivering that outcome as mentioned in Scope Baseline (not more not less). Scope baseline would help us to focus more on the QC aspect. Hence it is very much a valid input to Quality planning.
http://www.pmhangout.com/discussion/62/the-role-of-scope-baseline-in-quality-planning
Baseline is the value or condition against which all future measurements will be compared. The baseline is a point of reference.
http://tenrox.com/glossary/baseline/
define scope baseline
Scope baseline is a component of the project management plan.