Requirements Development and Management (APPEL-REQ)

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This course presents the participant with best practices that, when incorporated into the requirement development and management process, will help a project team develop a winning product—one that delivers what is needed, when it is needed, within the projected costs and with the expected quality. This course is also available for intact project teams as APPEL-REQ-T.

This course is designed for NASA’s technical workforce, including systems engineers and project personnel who seek to develop the competencies required to succeed as a leader of a project team, functional team, or small project.

Systems Engineering Competencies
  • SE 1.1 - Stakeholder Expectation Definition & Management
  • SE 1.2 - Technical Requirements Definition
  • SE 1.3 - Logical Decomposition
  • SE 3.2 - Requirements Management

Click here to view full competency model.

Related Resources

Resource Category

Applied Space Systems Engineering (Public) Book
Customer-center products: Creating successful products through smart requirements management (Public) Book
Verification, validation, and testing of engineered systems (Public) Book
Delivering quality products that meet customer expectations (PDF) (Public) Document
Developing requirements from technology-driven products (PDF) (Public) Document
Everything you wanted to know about interfaces, but were afraid to ask (PDF) (Public) Document
INCOSE Systems Engineering Handbook (Public) Document
NASA Project Management Handbook (PDF) (Public) Document
Scope - Magic (PDF) (Public) Document
Thinking ahead to verification and validation (PDF) (Public) Document
Triple your chances of project success risk and requirements (PDF) (Public) Document
Requirements Experts Blog (Public) Website

Critical Knowledge Resources

Resource Category

Alan Lindenmoyer: Developing Requirements from Higher-level Needs (Public) Video
Jim Nicholson: Negotiating Requirements Verification Method (Public) Video
Kathy Lueders: Engage the End User (Public) Video
Kathy Lueders: Seperating Design Solutions from Requirements (Public) Video
Kathy Lueders: Understanding the Source of Requirements (Public) Video
Goddard Search Repository: Case Studies (Public) Website
NASA Lessons Learned Information System (Public) Website

APPEL Library Resources

NASA Galaxie Library NASA Galaxie Library Books 24x7 Library Books 24x7 Library
All supplemental resources are NASA accessible only unless otherwise noted.

Upon completion of this course, participants will be able to:

  • Identify the benefits of defining scope at the beginning of your product development process.
  • Identify and describe the importance of drivers and constraints.
  • Develop and describe the importance of operational concepts.
  • Explain product scope, product validation, and baselining.
  • Identify the characteristics of good and well-written requirements.
  • Explain the levels of requirements, how requirements are linked, and the iterative nature of requirement decomposition.
  • Explain the importance of allocation and how to allocate requirements.
  • Identify types of requirements that must be defined and write good requirements.
  • Describe the processes, activities, and tools that are used to manage requirements throughout the product life cycle.
  • Describe management’s role in requirements management activities.
  • Explain how and why a requirements development and management process needs to be defined and followed.


Interested in taking this course? Click the date(s) below to register through SATERN.

Registration Question? Contact the training specialist below for assistance.

Dallas Neener
(321) 867-6819

Click here to watch a video tutorial of the APPEL Course Registration Process.



Lou Wheatcraft is a senior instructor/consultant from Requirements Experts (RE) having over 40 years experience in the aerospace industry, including 22 years in the United States Air Force. Lou has been teaching APPEL sponsored Requirement Development and Management (REQ), Performance Base Statements of Work (PBSOW), and tailored Intact Team Training (REQ-T) classes for the last 13 years. Lou has had published and presented many papers on requirement RD&M topics


Curriculum Question? Contact the curriculum lead below for assistance.

Ramien Pierre

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