Appendix E: Sample Outline of Software Preliminary Design Specification

1	Introduction
1.1	Purpose
1.2	Scope
1.3	Definitions and Acronyms
2	References
3	Functional Decomposition Descriptions
3.1	Function 1
3.1.1	Functional Components
3.1.2	Concurrent Processes
3.1.3	Data Components
	.
	.
	.
3.n	Function n
3.n.1	Functional Components
3.n.2	Concurrent Processes
3.n.3	Data Components
4	Dependency Descriptions
4.1	Interfunction Dependencies
4.2	Interprocess Dependencies
4.3	Data Dependencies
5	Interface Descriptions
5.1	Functional Interfaces
5.1.1	User Interfaces
5.1.2	Hardware Interfaces
5.1.3	Software Interfaces
5.1.4	Communications interfaces
5.2	Process Interfaces

^[1]Adapted from IEEE Standard 1016-1987.