The Core Belief Behind This Law

1984 Words Aug 19th, 2015 8 Pages
The core belief behind this law, created by Robert Glass, is that the failure of a project can come down to requirement deficiencies set within the initial stages. If those specified requirements are far too many, unclearly defined, unstable or incomplete, then the project is likely to fail.
One of the most common instances of requirement deficiencies that can arise is attempting to cater for the needs of all groups or persons involved. Differing knowledge and conflicts of interest may arise because of this thus leading to a difficulty in correctly prioritizing requirements.
Additionally the other most common instance of requirement deficiencies is if these definitions are erroneous or incomplete. This is especially common if the definition of requirements is done by a third party.
Therefore in order to most effectively avoid these two common causes of requirement deficiencies, groups within an organization that have the correct mix of resources, knowledge and processes should be consulted.
According to Glass, resources are acceptable if 15-30 of the project effort was spent on the requirements definition. In regards to correctly obtaining valid sources of knowledge without saturating requirements, it was found that involving customers, consulting all resources and involving highly skilled people was the most successful approach. Furthermore, processes that involved the concentration of prioritization, traceability and validation of requirements was also recommended.
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