NINE SCREENS

The TRIZ methodology of inventive problem solving - ARIZ - uses the 'nine screens' tool during the early part of problem forming.

PAST PRESENT FUTURE

MACRO land based wired cell based micro cell
network radio network multiple connection
fields

SYSTEM fixed voice only mobile telephone mobile headset
telephone with multiple and anything
functionality else that needs
the connection

MICRO mechanical sub integrated connectivity on
systems electronic a chip
components

The nine screens tool brings together the strong element of the macro to micro trend of systems, and the time based evolution of technical systems development towards the ideal final result. As well as encouraging us to identify and describe these trends, this tool also encourages us to open up our thinking from a broader aspect. For those familiar with DFSS methodologies, this tool is similar to the MGP (Multi Generation Planning) tool often used to divide large design projects into generations of development (time span) against the vision platforms and technology required (macro to micro span). Although this tool is really part of the methodology of TRIZ problem solving. I have included it here as it fits micely with the evolutionary trends of system development. From 'System Present' our main drive will be to 'Micro Sybut there are eight different directions in which we could move, and 20 ways of moving from one screen to an adjacent or diagonal screen.stem Future', but there are eight different directions in which we could move, and 20 ways of moving from one screen to an adjacent or diagonal screen.

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