A payment can be made by many members

Each member makes at least one payment

A meal can be ordered by many members

Each member orders at least one meal

Each member makes many payments

volume testing

integration testing

unit testing

user acceptance testing

regression testing

Cell_number

A suitable key is not present; will have to add our own key

ID_number

Passport_number

economic feasibility

technical feasibility

deadline feasibility

schedule feasibility

operational feasibility

is typically deployed within weeks of the decision to build

can help a business to achieve a competitive advantage

promotes licensing agreements with vendors

costs less up front than subscribing to or buying software

reduces the need for technical expertise in-house

it emphasises a team-based approach through multiple development "sprints"

changes to requirements can be easily accommodated at any stage of development

users can easily review intermediate products at the end of each phase

it requires detailed system documentation that links requirements to business needs

system requirements are clearly communicated to developers as understood by users