Is a delivery model for software which provides the ability to customize data entry forms, screens, reports, and the like, and access to software development tools to alter the way in which the software works by adding new modules (services) and/or making modifications to existing modules.

The answer is Platform-as-a-Service

it can either be 2. or 4. : ) tell me if i'm wrong or right

there is no universally accepted definition of art. although commonly used to describe something of beauty, or a skill which produces an aesthetic result, there is no clear line in principle between (say) a unique piece of handmade sculpture, and a mass-produced but visually attractive item. we might say that art requires thought - some kind of creative impulse - but this raises more questions: for example, how much thought is required? if someone flings paint at a canvas, hoping by this action to create a work of art, does the result automatically constitute art?