IPT HSC assignment 1
R
planning
what is involved in planning
the Planning stage is the 2nd stage of the system developmet cycle and is used to plan a system development approach to figure out what is needed to do the approach for axample, sking the people what they want the system does, and get a copy of the system so you can do the plan of what you need the system to do.
Feasability study
The feasibility study is an evaluation and analysis of the potential of the proposed project which is based on extensive investigation and research to support the process of decision making.
Feasibility studies aim to objectively and rationally uncover the strengths and weaknesses of an existing business or proposed venture, opportunities and threats present in the environment, the resources required to carry through, and ultimately the prospects for success. In its simplest terms, the two criteria to judge feasibility are cost required and value to be attained.
System Development Approaches
TRADITIONAL - Requires each stage to be completed before the next is commenced.
OUTSOURCING - Is where external specialists are contracted to develop part of the system
PROTOTYPING - Is where an existing prototype is refined over time and involves into the final system
CUSTOMISATION - Is where existing information technology is modified to meet different requirements.
PARTICIPANT DEVELOPMENT - Is where people who are or will be part of the system develop the system.
AGILE - A method usedto refine a systemwhilst it is operational.
design tools:
It is often easier to design a new system or to make modifications to an old one if people can see how the various aspects work together. Systems Analysts and Project Managers use a range of tools such as:
Context Diagrams
Data Flow Diagrams
Decision trees and Decision tables
Data Dictionaries
Storyboards