Several governments in developing countries have been concerned about the issue of computerization of their organs, companies, and society as a whole. This has awakened in organizations the search for tools and methodologies that aid in their processes. Software testing services is the most effective services in these days, where most of the works can be done by tools. Which also reduces our work load.
The software is a set of instructions that are executed in order to produce desired functions and performances. It can also be defined as data structures that allow programs to manipulate information. Or, documents describing operation and use of programs. The software has become important to companies, as a differential of performance and control, which provides competitiveness before the competition. Regarding this referential, development companies are increasingly worried about their engineering, in order to attribute the quality to the products developed. In order to improve the quality of software in general and increase productivity in the development of such products, software engineering has emerged. This is a set of three elements: methods, tools, and procedures that allow the manager to control the development process and, to the professional, provides the basis for building a product with high quality, in a productive way. The methods indicate how to build the product. Involve planning, project estimation, requirements analysis, data structure design, program architecture, algorithm processing, coding, testing, and maintenance. The tools provide automated or semi-automated support to the methods, for each there are support tools. Procedures are the link between methods and tools. They define the application sequence, the products to be delivered, the quality controls and the coordination of changes, and the benchmarks for assessing progress. Therefore, software engineering can be defined as a set of principles for the development of a product with a high level of quality and reliability that works efficiently. For this, the quality becomes the mainframe. Software quality The main purpose of software engineering is to assist in the construction of quality products. Quality is to meet perfectly, reliably (without defects), affordable (low cost), secure and at the right time the needs or requirements of the customer. Quality can also be understood to be in compliance with explicitly stated functional and performance requirements, clearly documented developmental patterns, and the implicit characteristics that are expected of all professionally developed software. Quality is a systematic process that focuses on all stages and produced with the objective of ensuring the conformity of processes and products, preventing and eliminating defects. If in the context of software engineering quality means meeting the specified requirements and the needs and expectations of the customer, ensuring this "quality" is not always as simple as it seems. Generally, implicit requirements are met along the way, sometimes with varied or even incomplete representations, which detract from the product, cause rework, and affect cost and lead times. To avoid these impasses it becomes necessary to incorporate methods and concepts such as "Planning, Control and Quality Assurance"
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