Imagine an investment bank, a trader has a requirement for a tool to screen stocks. The requirement is to select stocks based upon different parameters, so for example find companies with a market capitalisation between a selected range, and a P/E ratio, Dividend Yield and Net Profit Margin between other selected ranges. And maybe the ability to add additional parameters.
Typically the process will be for these requirements to be captured by the Business Analyst who acts as the conduit to the development team. Nowhere is the user interface explicitly referenced – it will almost certainly be articulated in the reality of the current systems; what the BA knows and understands. Despite the iterface being delivered through a browser, the developers are not web developers. Inevitably the finished product will be functionally correct, it meets the requirements, but it will be clunky: select parameters > search > results… because it reflects the requirements as the trader put them “I want to do this and this and this, press a button and get a list back“.
So what are the chances of an internally developed investment bank application looking like Google finance’s Stock Screener? And what would your trader rather have?