Software Design

PIECES

Framework 1 - A six category checklist for classifying every problem, opportunity, and directive you uncover

Performance

PIECES; where it questions if it is fast enough

INFORMATION

PIECES; where it questions if the information is right

ECONOMICS

PIECES; Where it questions if it is worth the money

CONTROL AND SECURITY

PIECES; where it questions if the system is secure and controls access properly.

EFFICIENCY

PIECES; where it questions if the system performs tasks effectively and uses resources optimally.

SERVICE

PIECES; where it questions if the system is reliable and usable.

TELOS

FRAMEWORK 2 - FEASIBLITY, checklist before you commit.

TECHNICAL

TELOS - where it questions if we can build and run the system.

ECONOMIC

TELOS - where it questions if it is worth the cost?

LEGAL

TELOS - where it questions if we are allowed to do it

OPERATIONAL

TELOS - where it questions if it will solve the problem or will it get used.

SCHEDULING

TELOS - where it questions if we can we finish it in time.

SYSTEMS DEVLOPMENT LIFE CYCLE

FRAMEWORK 3 - the roadmap from first idea to long-term support.

PLANNING

SDLC - decide what to build and whether it’s worth building at all

ANALYSIS

SDLC - defines exactly what the system must do - not yet how

DESIGN

SDLC - decide how the system will work, inside and out.

IMPLEMENTATION

SDLC - Build it, Prove it works, and put it in user’s hands.

MAINTENANCE

SDLC - keep it healthy and improving for as long as it’s used.

WATERFALL

LINEAR, phase by phase

ITERATIVE

repeated, growing chunks

SPIRAL

risk-driven loops

AGILE

short sprints, feedback