ISDM is a conceptual model used in Project Management that describes the
stages involved in an information system development project.
Systems development is the process of defining, designing, testing, and
implementing a new software application or program
IS Development Methodologies
contain models and should tell you ‘what’ steps to take and ‘how’ to perform
those steps but most importantly the reasons ‘why’ those steps should be taken,
in that particular order.
Jayaratna, (1994)pg. 37
ISD methodologies as a recommended
collection of philosophies, phases, procedures, rules, techniques, tools, documentation,
management and training for developers of information systems .
Maddison et al. (1984)
ISD methodologies is a collection of procedures,
techniques, tools and documentation aids which will help the systems developers
in their efforts to implement a new information system.
WHY USE A METHODOLOGY
WHY AND WHEN YOU INITIATE SYSTEM
DEVELOPMENT
Problem with existing system
Desire to introduce new system
Change in market/external
environment
Merger or acquisition
TYPES OF ISD METHODOLOGIES
No comments:
Post a Comment