The waterfall model of conventional software management, which is still prevalent in many mature software organizations, has served its purpose. The ever-increasing market demands on software development performance continue. The increasing breadth of Internet applications has further accelerated the transition to a more modern management process known as spiral, incremental, evolutionary, or i...

Kent State had its beginning nearly a century ago. William S. Kent, a person of vision, donated 53 acres of farmland located on a hill overlooking a small town on the Cuyahoga River. He did so to establish a teacher education school in his community. When I visit various communities in my travels, I always ask, Why does this community or city exist? What is its reason for being? Kent exists bec...

While the introduction of the waterfall lifecycle model was a vast improvement over ad hoc process, there are inherent deficiencies in the waterfall model that have led to variants on the theme, including incremental, spiral, and evolutionary models. This paper addresses the planned evolution of large-scale systems from the design and build of smaller components based on an incomplete, yet end-...

Often product line engineering is treated similar to the waterfall model in traditional software engineering, i.e., the different phases (scoping, analysis, architecting, implementation) are treated as if they could be clearly separated and would follow each other in an ordered fashion. However, in practice strong interactions between the individual phases become apparent. In particular, how im...

Agile Development Methods have received much attention since their inception, being regarded as an alternative to plan-based, phased methodologies, which are guided by a waterfall process model. These practices have evolved and developed over time, culminating in 2001 with the Agile Manifesto. Since that time, preferred methodologies, implementations, and best practices have continued to evolve...

In this paper, a method to design regular (2, dc)LDPC codes over GF(q) with both good waterfall and error floor properties is presented, based on the algebraic properties of their binary image. First, the algebraic properties of rows of the parity check matrix H associated with a code are characterized and optimized to improve the waterfall. Then the algebraic properties of cycles and stopping ...

IEEE Standard for software and system test documentation (i.e., IEEE std 829-2008) is a comprehensive guide that specifies a common framework for planning the testing activities. The agile process is known for its promotion of frequent delivery of working software over comprehensive documentation and responding to change over following a plan. Although the IEEE std 829-2008 has strong associati...