user: What are the different phases in systems development life cycle?

assistant: There are 7 phases in systems development life cycle. They are system investigation, Analysis, Design, Testing, Training and transition, Operations and maintenance and Evaluation

user: Although Chicago isn't located on either coast of the United States, what factors continue to contribute to its economic success?

assistant: Even though Chicago is the biggest major in-land city in America, its diverse economic sectors allows it maintain its status as a competitive global city. Chicago is the country's main railroad hub. Not only is it paramount to the transportation of goods nationally, but its ability to ensure that not a single industry dominates more than 14% of the city's workforce helps its economic endeavors. Having one of the most active airports in the world and an infrastructure proven to be conducive to a plethora of industries, it makes it an ideal location for companies to plant their headquarters as Exelon, JLL, McDonald's, and Motorola all have done.

user: Looking at cities in Australia that are on the east coast and the west coast of the country, which coast are the cities of Fremantle, Sydney, Brisbane, Perth, Cairns, Townsville, Newcastle located on?

assistant: Sydney, Brisbane, Cairns, Townsville and Newcastle are Australian cities located on the east coast of Australia. Fremantle and Perth are located on the west coast of the country.