The first task of a database designer is to produce a conceptual data model that reflects the structure of the information to be held in the database. A common approach to this is to develop an entity-relationship model, often with the aid of drawing tools. Another popular approach is the Unified Modeling Language. A successful data model will accurately reflect the possible state of the external world being modeled: for example, if people can have more than one phone number, it will allow this information to be captured. Designing a good conceptual data model requires a good understanding of the application domain; it typically involves asking deep questions about the things of interest to an organisation, like "can a customer also be a supplier?", or "if a product is sold with two different forms of packaging, are those the same product or different products?", or "if a plane flies from New York to Dubai via Frankfurt, is that one flight or two (or maybe even three)?". The answers to these questions establish definitions of the terminology used for entities (customers, products, flights, flight segments) and their relationships and attributes.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What must one understand in order to create a successful data model?
Ah, so.. the application domain

Another who contributed significantly to the spirituality of the order is Albertus Magnus, the only person of the period to be given the appellation "Great". His influence on the brotherhood permeated nearly every aspect of Dominican life. Albert was a scientist, philosopher, astrologer, theologian, spiritual writer, ecumenist, and diplomat. Under the auspices of Humbert of Romans, Albert molded the curriculum of studies for all Dominican students, introduced Aristotle to the classroom and probed the work of Neoplatonists, such as Plotinus. Indeed, it was the thirty years of work done by Thomas Aquinas and himself (1245–1274) that allowed for the inclusion of Aristotelian study in the curriculum of Dominican schools.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was not a discipline of Albert the Great?
Ah, so.. unanswerable

A Macau resident was arrested on April 26 for posting a message on cyberctm.com encouraging people to disrupt the relay. Both orchidbbs.com and cyberctm.com Internet forums were shut down from May 2 to 4. This fueled speculation that the shutdowns were targeting speeches against the relay. The head of the Bureau of Telecommunications Regulation has denied that the shutdowns of the websites were politically motivated. About 2,200 police were deployed on the streets, there were no interruptions.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who was arrested on April 26 for posting an online message?
Ah, so..
A Macau resident