By William Smyth
The computation of styles in strings is a primary requirement in lots of components of technology and knowledge processing. The operation of a textual content editor, the lexical research of a working laptop or computer application, the functioning of a finite automaton, the retrieval of knowledge from a database - those are all actions that may require that styles be positioned and computed. In different components of technological know-how, the algorithms that compute styles have functions in such assorted fields as information compression, cryptography, speech reputation, laptop imaginative and prescient, computational geometry and molecular biology.
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31 32 The Traditional Software Development Process For many years, and even today, many projects have used a traditional process commonly called the Waterfall lifecycle process, shown in Figure 2-1. Even if you are unfamiliar with this term, you have probably used this lifecycle before without knowing it. The basic tenets of the Waterfall lifecycle are as follows: • You cannot effectively create or build anything until you know the requirements. • Development should not begin until the requirements have been completely collected and frozen, because you don't want to have to redo work that has been completed.
Note that collaboration across teams also means including organizations that often are ignored or are peripherally involved. This includes the people who will operate the system being built, and the associated business organizations (including, but not limited to, the contracts office). Practice 4: Demonstrate Value Iteratively Demonstrating value iteratively is perhaps the most significant of the six best practices. Similar to the discussion of the Waterfall lifecycle, let's discuss the major tenets of iterative development: • You can better develop a complex software system by breaking it into a series of smaller problems to solve.
The amount of control needed also varies throughout the project's duration. For example, during initial development, developers need the freedom to quickly try new approaches without overhead controls getting in the way. However, after the ideas solidify and releases are delivered to the user community, changes to these baselines need to be controlled. The following is a list of characteristics illustrating where more control and formality are needed. Evaluate your project against each criterion.
Computing Patterns in Strings by William Smyth