Summary Software Development Lyfe Cycle Notes 1

 Software development lifecycle (SDLC) is a model, in the software development industry, for
planning and producing new software.
o Phases
 Define the range and scope
 Conduct a study to ensure the software project is viable
o Legal Feasibility
o Political Feasible
o Technical Feasibility
o Time Feasibility
o Financial Feasibility
o Once the study is complete, you should decide if the project
should continue, be delayed or candled
 Carry out an investigation to establish what the client is expecting
o What the client requires
o Current systems in place
o Project timelines are
o Funds available
o Other factors
o Methods of collecting info
 Observation
 Interview
 Questionnaires
 Review of documentation
 Analysis of user requirements (what they need doing)
 Functionality
o What it will do
 Non-functional
o Expected characteristics of software
 User interface
 Specification
o Must have
 Cannot operate without these
o Should have
 Enhance the functionality
o Could have
 Can still properly functions
o Wish List
 Do not pap any objectives
o Example
 The software will have a search option, which
provides the user with tools to search and select
details, from various invoices and summarise the
results in a single report.
 Design phase