The phrase "a straightforward description" is correct and usable in written English.
It can be used when you want to convey that something is being explained clearly and without unnecessary complexity.
Example: "The report provides a straightforward description of the project's objectives and outcomes."
Alternatives: "a clear explanation" or "an uncomplicated account".
The story appears to be a straightforward description of a physical process.
Gay slang for a male prostitute, "trade" is also a straightforward description of what was going on.
Mr. King isn't about to do the easy thing, which would be to give a straightforward description of what it is and how it works.
Most often we simply use a straightforward description, like 'the health care law' or 'the health care overhaul,' or occasionally the formal name, the Affordable Care Act".
The Youth Issue: It's both a straightforward description of what you're about to read and a more evocative phrase -- as in, What exactly is our issue with youth?
The new Mogwai album is called "Happy Songs for Happy People" (Matador), and the title seems more like an open-ended question (What does "happy" mean?) than a straightforward description, or a sarcastic joke.
Regarding the paper, it is a fairly straightforward description of a software package, containing all the things that such a paper should have - a description of the goals, the implemented methods, the hardware and software dependencies (systems on which the software has been tested), some guidance on usage, pointers to the software and documentation, and references.
It's best to go with a simple, straightforward description of the image.
On November 25, Jarrard announced the game had been retitled to Halo 3: ODST as a "more straightforward" description of the game.
We were talking about what distinguishes "Prism," due Tuesday, from her first two records, and at first she offered only generalities — "It's got some substance to it" — language that seemed to be circling a more straightforward description.
Dill starts out with a good straightforward description of the box plot and then gets into some interesting examples and elaborations.
