I couldn't find an explanation of the technique but I found 'broom finish' and 'sawn control joints'.

c. Final Finish: A broom finish is recommended particularly on driveways, walks, etc.
Where a smooth finish is desired (garage floors, patios, etc.) a wood hand float finish should be used. Machine floating and/or troweling is not recommended.

d. Joints: Control joints may be hand tooled or sawed (sawing is recommended). In either method, they must be cut to a depth of at least 1/4 the thickness of the slab and spaced so that the dimension in either direction does not exceed that
shown in the following table.

http://www.dconcrete.com/Guidelines for Durable Driveways.pd...

Final Finish: We recommend a broom finish for concrete applications such as driveways and sidewalks. When you need a smooth finish (garage floors, patios, etc.), use a wood hand float finish. Avoid machine floating and/or trowelling.

Joints: Hand tool, saw, or use inserts to create control joints. When grooved or sawed, cut the joints to a depth of at least ¼ the thickness of the concrete slab. Space control joints so that the dimension in either direction does not exceed spacing as indicated below:

http://www.kuert.com/do-it-yourself.cfm

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Note added at 1 hr (2013-11-23 22:29:58 GMT)
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Steps 5 and 6:

http://www.wikihow.com/Finish-Concrete

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Note added at 1 hr (2013-11-23 22:34:48 GMT)
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Look under 'concrete joints' and 'finish':

http://www.constructionmaterialsltd.com/product-info/glossar...