The meaning of the Acronym SSDD is...

SSDD is

• System/ Segment Design Document
• System/ Segment Design Description ( MIL-STD-498)
• Same Shit, Different Day

More Meanings For SSDD:

• Staff and Student Development Department
• System/ Segment Design Description ( MIL-STD-498)
• Same Saying, Different Dictionary
• Single Sided Double Density
• System/ Segment Design Description ( MIL-STD-498)
• System/ Sub-system Design Description ( MIL-STD-498)
• System/ Segment Design Description ( MIL-STD-498)
• System/Segment Design Document
• Same Stuff, Different Day
• System/ Segment Design Document
• System/ Segment Design Description ( MIL-STD-498)
• System/Subsystem Design Description
• System/ Segment Design Document
• System/ Segment Design Description ( MIL-STD-498)
• Same Shit, Different Day

SSDD is also in:

• General
• Media
• Military
• Networking
• Security
• SMS
• Software
• Universities