Literal equivalents for 'original design' are limited only by time spent with a thesaurus and the context in which the phrase is being used.
This question being under the Religion and Spirituality section leads me to believe that this may be in reference to the term 'Intelligent Design'. An alternative phrase for 'Intelligent Design' would be Creationism.
The fallaciously labeled 'scientific theory' for the teleological proof of the existence of god--and in turn the divine nature of the universe--can be referred to by any phrase that denotes any theological concept [specific to Christianity¹] that claims [or in certain cases 'implies'] God to be the architect, designer, and/or initiator of aspects of the universe relating to it's creation and to living things².
¹"...the majority of principal intelligent design advocates are publicly religious Christians."
http://en.wikipedia.org/wiki/Intelligent_design#Movement
A point that should be made about the God of Intelegent Design being the 'Christian God' is that this removes those Christian denominations that have tendencies towards henotheistic views.
² An interesting area of inquiry regarding the application of Intelegent Design is the qualifications and characteristics of 'living things'. In specific, the differences between the scientific and judeo-christian requirements.
A cacophemism is another word for a dysphemism, the use of a derogatory word or phrase to replace a more neutral original.
An alternative sentence
The figure has been modified from the original design concept.
it basicaly means 'idealy' "he had to be there idealy"
In Adventures of Sonic the Hedgehog or Sonic Underground, Sonic original design is in these episodes.
The phrase 'come full circle' refers to getting back to the original position or the original state of affairs. The origin of the phrase is unknown, but is used in the Western world.
Whats another phrase or term for "security issues"?
The command used to replace a word or phrase with another in many text editing applications is typically called "Find and Replace." This feature allows you to input the word or phrase you want to change in the "Find" field and the new word or phrase in the "Replace" field. Once you execute the command, it will locate all instances of the original text and replace them with the new text as specified.
ils sont d'origine is the translation. This is the translation of the phrase they are original.
The original design of the Internet affected its development because nobody controls it and it can be positive or negattive.
i need to know another phrase for pay attention
Another phrase for facts could be information or data.