The Structured Approach Requirements

Structured and Object-Oriented Views of Activities/Use Cases

The basic difference in approach to the structured and object-oriented on the development of the system lies within how the response of the system is related to the event are modelled and implemented. The structured approach of looking at the system as a collection of processes, which is done by the person or system. Computer process that is structured more likely to resemble the procedural of computer programs, which means it consists of instructions that are executed in a sequential. The process will also interact with people, such as when there is an instruction from a system that asks the user to input a specific value to perform. To model the system response to an event, a structured approach using the processing models that represent the system features.

In the meantime, the object-oriented approach looks at a system as a collection of objects that mutually interact. The objects it refers to things that exist in the problem domain. Objects have behaviors (also known as methods) that allows her to be able to interact with other objects as well as with people who use the system. Objects that one would ask other objects to do something by sending us a message. To model the system response to an event, an object-oriented approach using modeling is represented by objects, along with behavior, and the interactions that occur between objects.

The difference between object-oriented structured approach in the development of the system:

Structured Approach
  1. Look at the system as a collection of processes.
  2. Processes will interact with the data entities.
  3. Processes will receive inputs and produce outputs.

Object-Oriented Approach
  1. See the system sebaagai a collection of objects that interact
  2. The objects will berinterasi with people and other objects.
  3. The objects will send and respond to messages.
Before deciding which approach you choose, make sure you have specified events and things in advance! Events and things that you've created earlier will be the reference basis for the next modeling
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