The earliest example of equine footwear we have is made of animal hide and dates from about 600 B.C. This primitive hoof protector looks more like a horse bootie than what we think of today as a horseshoe. It was probably stuffed with dried grass or other available natural material and tied on with hide thongs.
The spiral model is a software development process combining elements of both design and prototyping-in-stages, in an effort to combine advantages of top-down and bottom-up concepts. The spiral model was defined by Barry Boehm in his article A Spiral Model of Software Development and Enhancement from 1985. This model was not the first model to discuss iterative development, but it was the first model to explain why the iteration matters.
Jeff Sutherland Jeff is the co-creator of Scrum and a leading expert on how the framework has evolved to meet the needs of today's business. The methodology he developed in 1993 and formalized in 1995 with Ken Schwaber has since been adopted by the vast majority of software development companies around the world. But Jeff realized that the benefits of Scrum are not limited to software and product development.