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Level 54

Approaches to System Development


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Incremental Development
A development approach that completes parts of a system in several iterations and then puts them into operation for users.
Project Planning
The initial activities of the SDLC, whose objective is to identify the scope of the new system and plan the project.
Analysis Activities
The activities of the SDLC whose objective is to understand the user needs and develop requirements.
Project
A planned undertaking that has a beginning and an end and that produces a desired result or product.
Systems Development Life Cycle (SDLC)
The entire process of building, deploying, using, and updating an information system.
Predictive Approach
An SDLC approach that assumes the development project can be planned and organized in advance and that the new information system can be developed according to the plan.
Spiral Model
An adaptive SDLC approach that cycles over and over again through development activities until a project is complete.
Prototype
a preliminary working model showing some aspect of a larger system
Iteration
A one- to four-week period. At the beginning, the customer chooses the stories to be implemented in the __________. At the end the customer can run their functional tests to see if the __________ succeeded.
Problem Domain
The area of a user's business for which a system is being developed.
Design activities
The activities of the SDLC during which the system and programs are designed.
Application
...A software designed to help the user perform specific tasks
Implementation Activities
The activities of the SDLC during which the system is programmed and installed
Phases
Related system development activities, which are grouped into categories of project planning, analysis, design, implementation, and support.
Waterfall Model
An SDLC approach that assumes the various phases of a project can be completed sequentially - one phase leads (falls) into the next phase.
Object-Oriented Approach
An approach to system development that views an information system as a collection of interacting objects that work together to accomplish tasks.
object
A database item that contains data, as well as the actions that read or process the data.
Support activities
Business activities that enable the primary activities to take place. Support activities include administrative activities, infrastructure, human resources, technology development, and procurement
Help Desk
The availability of support staff to assist users with any technical or processing problem associated with an information system.
System Development Methodology
Comprehensive guidelines to follow for completing every activity in the systems development life cycle, including specific models, tools, and techniques.
Model
A representation of an important aspect of the real world.
Tool
Software support that helps create models or other components required in the project.
Integrated Development Environments (IDE)
Tools that help programmers with a variety of programming tasks.
Visual Modeling Tools
Tools that help the analyst create and verify important system models, often generating program code.
Technique
A collection of guidelines that help an analyst complete a system development activity or task.
Object-Oriented Analysis (OOA)
Defining all of the types of objects that do the work in the system and showing what use cases are required to complete tasks.
Object-Oriented Design (OOD)
Defining all of the types of objects necessary to communicate with people and devices in the system, showing how objects interact to complete tasks, and refining the definition of each type of object s…
Object-Oriented Programming (OOP)
Writing statements in a programming language to define what each type of object does, including the messages that the objects send to each other.
class diagram
A diagram used to represent data and their relationships in UML object notation.
Unified Process (UP)
An object-oriented system development methodology offered by IBM's Rational Software
Repository
A database that stores information about the system in a visual modeling tool, including models, descriptions, and references that link the various models together.