- Name one way that the traditional and object-orinted approches to infromation systems development are similar. Explain how they are simiar.
- Name one way that the traditioanl object-orinted approches to information systems developemnt are different. Explain how they are different.
Name one way that the traditional and object-orinted approches to infromation systems development are similar. Explain how they are simiar.
To understand business and its operations system analysist use varity of techniques such as modeling, prototyeping and computer aided systems to plan, design and implement information systems where users, manages and IT staff contributes to the system.
Modeling is the graphical representaion of process which is used by the developeres to analze, test and modify the information. Business model discribe the information that a system must provide. and the data model describe data structures and design. An object model discribe the code modules. although all these modules look over laped but they actually work together to describe the same information from diffrent point of views.
prototyping is to test of the concept of the system and gives an opportunity to examine input, output and user interface before the final dicision is taken. the disadvantage of this prototyping is importent decisions might be taken too early even before business is undetstood throughly however it is extermly valuable tool in fact- finding.
case toolsare very helpful to develop and maintain informatin sysstemiticllay it develop and support wide varity of tool and desigh methodologyes such as structured analysis and object oriented analysis.
Name one way that the traditioanl object-orinted approches to information systems developemnt are different. Explain how they are different.
Diffrent kind of methods are used to develop computer based information systemsucsh as structured analysis and Object oriented analysis. structured analysis is the most popular method of developing system where as object oriented analysis is widely used to develop the information.
Structured analysis:
Structured analysis is a traditional system of developinf technique. it is time-tested and easy to understood. it uses series of phases called system development life cycle to plan, design and support information system.
structured analysis used to discribe process graphically because it mainly focus on processes that transform data into useful information. called process-centered technique. it also process the data of the organization and it’s structures and data base disign and user interfaces.
process model indetify the data flow into the process to give output data flow.
Object-oriented analysis:
Where as structured analysis processdata and seprates it into smaller components called objects. object oriented model is used to process and operations these objects represent actual people, things trasactions and events.
An object is a member of a class which is a collection of similar objects. These objects possess it’s own charatertics called properties, which inherites from its class or process on it’ own.
Builtin process in Object oriented design are called as method it is used to change proterties of an object. usually one object send information to another object by using message. which(message) request for a specific kind of behavior from another object.
Object-oriented model represent data and behavior to show how objects affect other objects and Object-oriented methodology most popular methodology because it is flexible, efficient and provide and easy transition of information.
