Studied by 1 personDFDs
________: describe the activities that fulfils a business relationship or accomplish a business task.
Software
________: Can be purchased from external vendors or developed in house.
OOSD (object oriented)
________: identifies potential problems and opportunities.
Critical path
________: activities that, if delayed, would delay the entire project.
Requirements analysis
________: determines user, stakeholder, and organisational needs.
Data modelling
________: accomplished through the use of entity- relationship (ER) diagram.
Environmental design
________: Involves systems development efforts that slash power consumption and take less physical space.
Systems operation
________: The use of a new or modified system.
Development team
Determines objectives of the information system
Delivers system that meets objectives
Project
Planned collection of activities that archives a goal
Stakeholders
People who benefit from a project
Users
People who interact regularly with the system
Systems analyst
Professional who specialises in analysing and designing business systems
Programmer
Responsible for modifying or developing programs to satisfy user requirements
Individual systems developer
person who performs all of the systems development roles
Individual users
acquire applications for both personal and professional use
End-user systems development
describes any systems development project in which business managers and assume the primary effort
Prototyping
An iterative approach
Outsourcing and on-demand computing
Reasons for using outsourcing and on-demand computing approaches
Managing change
essential to recognise and deal with existing or potential problems
Object-oriented systems development
Combines logic of systems development life cycle with power of object-oriented modelling and programming
Data modelling
accomplished through the use of entity-relationship (ER) diagram
IS vendor
Company that offers hardware, software, telecommunications systems, databases, IS personnel, or other computer-related resources
Individual systems developer
person who performs all of the systems development roles
Individual users
acquire applications for both personal and professional use
End-user systems development
describes any systems development project in which business managers and assume the primary effort
Information systems planning
translating strategic and organisational goals info systems development initiatives
Aligning goals and IS goals
critical for successful systems development effort
Systems investigation
identifies problems and identities and considers them in a light of business goals
Systems analysis
studies existing systems and work processes to identify strengths, weaknesses, and opportunities for improvement
Systems design
defines how the information system will do what it must to obtain the problems solution
Systems implementation
creates or acquires various system components details in systems design, assembles them, and places new or modified system info operation
Systems maintenance and review
ensures the system operates as intended
Rapid application development (RAD)
employs tools, techniques, and methodologies designed to speed application development
Managing change
essential to recognise and deal with existing or potential problems
Project schedule
detailed description of what is to be done
Project milestone
critical date for completion of a major part of the project
Project deadline
date the entire project is set to be completed and operational
DFDs
describe the activities that fulfils a business relationship or accomplish a business task
Logical design
describes functional requirements of a system
Physical design
specifies the characteristics of the system components necessary to put the logical design into action
Purpose of systems design
To prepare the detailed design needs for a new system or modifications to an existing system
Purpose of systems implementation
To install a system and make everything, including users, ready for its operation
IS vendor
Company that offers hardware, software, telecommunications systems, databases, IS personnel, or other computer-related resources
Software
Can be purchased from external vendors or developed in house
Systems operation
The use of a new or modified system
Note
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