SYSTEM ANALYSIS

System analysis



System analysis

System Analysis

Systems analysis is a dissection into parts components for purposes of studying how the components interact and work pieces. Structured analysis was one of the first formal strategies developed for systems analysis of information systems and computer applications.

Modern structured analysis is a technique focused on the process used for the needs of a system model. The models are structured images that illustrate the processes, inputs, outputs, and files necessary to respond to events. Structured analysis presented an overall strategy has been adopted by many other techniques - model-driven development. A model is a representation of reality.

The Environmental Model

Thus the first great role model to be developed is the one that defines the interface between the system and the rest of the universe, i.e. the environment. The model is known as the environmental model. Models outside the system, the model of the inside of the system, known as the model is explained below. In addition to determining what is in the system and what is outside the system, it is also vitally important to define the interfaces between the system and the environment.

The production systems works as a response to an event or stimulus in the environment. Thus, another critical aspect of the environmental model is to identify events that occur in the environment in which the system must respond.

The focus is only on events that:

(1) Occur in the external environment, and

(2) Require a response from the system.

The area within the boundaries of the system is known as the domain of change, which simply means that everything in the system boundary is subject to change, while everything outside the border will be left in its current form and investigated no.

The environmental model has three components:

1. Statement purpose

2. Context Diagram

3. Event ListStatement of purpose

The first component of the model of the environment is a brief statement, concise text for the purpose of the system. It is intended for those not directly involved in the development of the system and outlines the tangible benefits, measurable will be achieved by the new system.

For the system that the author intends to develop, which has been called "The Mechanical Design Desktop", the purpose statement is as follows: The purpose of mechanical design system desktop is to categorize and organize all the resources of the desktop related to the design of a particular machine element, such as formulas, tables, rules, graphics ...