Design sequence

What is the most common design sequence in an architecture firm nowadays? The traditional design sequence 15 years ago started with a sketch, followed by a physical model. This process went back and forth until the architect was satisfied. After that sketches were given to draftsman to draft plans, sections, elevations etc. Now, 3d software is common in most architectural firms, how does this changes the process? Are Physical models yet the primer design tool or has this been replaced with 3d software? When do software like adobe (photoshop, illustrator, indesign) come into play in the design phase?
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