A Systems Engineering Management Plan (SEMP) is a document that addresses a contractor’s overall systems engineering management approach. It provides unique insight into the application of a contractor’s standards, capability models, configuration management, and toolsets to their organization. This is different from a Systems Engineering Plan (SEP) which should address System Engineering (SE) aspects on a particular program or project. The SEMP is usually written in response to a government SEP and shall describe a contractor’s proposed efforts for planning, controlling, and conducting a fully integrated engineering effort. The SEMP is basically the rule book that describes to all project personnel and stakeholder how a project will be technically managed.
Data Item Description: System Engineering Management Plan (SEMP)
Systems Engineering Management Plan (SEMP) Overarching Content
The SEMP provides the technical content that program personnel needs on how an organization expects them to execute their project. The SEMP should include:
- Description of the technical effort and technical processes on what will be used, how the processes will be applied using appropriate activities.
- Project structure to accomplish activities, information flow, decision-making.
- Resources required for accomplishing the activities.
- Project critical event’s objectives during any phase of a project’s life cycle.
- Work product outputs of the processes and how the processes are integrated.
- Communication standards between project management engineering teams.
- Entry and exit criteria of work products during project phases.
SEMP Development 
The SEMP should be developed before any projects are undertaken by an organization. The development of the programmatic and technical management approaches requires that the key project personnel develop an understanding of the work to be performed and the relationships among the various parts of that work. A SEMP’s development requires contributions from leadership, program management, engineering personnel, technical experts, cost estimators, schedulers, and many other areas that impact a project outcome.
The SEMP shall include the following: 
- Cover/title page
- Document history
- Table of contents
- An introduction that includes the document’s purpose, suggested audience, and list of key terms
- An executive summary of the document’s content
- An overview of the proposed SE approach. See below
A Contractors SEMP should address the following: 
The contractor should have its SEMP developed during the proposal process prior to any cost estimating efforts. The SEMP is used in the preparation of any cost estimate and should describe the technical content as follows:
- Organization of the development team, along with their physical location and facilities needs
- Technical environments for a project and how they will be managed. It should also discuss the interaction with the pre-production and production environments.
- Description of the evaluation and decision-making process to be used when resolving technical questions
- System Engineering Methodology:
- Configuration Management: Include a description of how project configuration items (e.g. source code) will be managed.
- Requirements Verification and Validation: Include a description of how the Use Cases will be clarified and expanded, requirements validated, and updated requirements reviewed and approved by the project office.
- The Architecture and Design Process (both logical and physical design), including how issues will be discussed and resolved.
- The software development methodology to be used that reflects the requirements (for iterative builds and incremental releases).
- The hardware development and configuration methodology to be used that reflects the requirements (for iterative builds and incremental releases).
- The build management process used to create and manage builds.
- The testing process to be used that encompasses the requirements.
- Description of how external interfaces will be developed and managed.
- Description of how data conversion development will be performed and managed.
- Implementation Planning to include a description of how you will manage the deployment of system functionality, the training required for both end-users and technical staff, the coordination/communication needed to prepare the target environments.
- Production Support strategy
- A description of how production support will be done concurrently with development, given the incremental release requirements for the project.
NASA Systems Engineering Handbook Appendix J SEMP Outline 
- Purpose and Scope
- Applicable Documents
- Technical Summary
- Technical Effort Integration
- Common Technical Processes Implementation
- Technology Insertion
- Additional SE Functions and Activities
- Integration with the Project Plan and Technical Resource Allocation
- Compliance Matrices
- Many contractors will call their SEMP a Systems Engineering Plan. The names are used interchangeable so check beforehand.
- Software planning in the Systems Engineering Plan
- This Data Item Description (DID) for the industry-developed Systems Engineering Management Plan (SEMP) was released in October 2009; it replaces DI-MGMT-81024 SEMP
- Many contractors will call their SEMP a Systems Engineering Plan. The names are often used interchangeable so check beforehand.
AcqLinks and References:
-  Data Item Description – System Engineering Management Plan (SEMP)
-  NASA Systems Engineering Handbook, 2007
- Presentation: Boeing SEP and SEMP Plan Alignment
- Systems Engineering Plan Outline – 20 April 2011
- DoD Systems Engineering Preparation Guide – April 2008 (Superseded by SE Plan Outline)
- Addendum to SEP Preparation Guide v2 – 2 July 2009
- Iterations in the Systems Engineering Process Guide – 14 Sept 2009
- Template: Systems Engineering Plan (SEP)