Recognizing Constraints An Article by Jeremy Wagner css-tricks.com Super Nintendo games were the flavor of the decade when I was younger, and there’s no better example of building incredible things within comparably meager constraints. Developers on SNES titles were limited to, among other things: 16-bit color. 8 channel stereo output. Cartridges with storage capacities measured in megabits, not megabytes. Limited 3D rendering capabilities on select titles which embedded a special chip in the cartridge. Despite these constraints, game developers cranked out incredible and memorable titles that will endure beyond our lifetimes. Yet, the constraints SNES developers faced were static. You had a single platform with a single set of capabilities. If you could stay within those capabilities and maximize their potential, your game could be played—and adored—by anyone with an SNES console. PC games, on the other hand, had to be developed within a more flexible set of constraints. I remember one of my first PC games had its range of system requirements displayed on the side of the box: Have at least a 386 processor—but Pentium is preferred. Ad Lib or PC speaker supported—but Sound Blaster is best. Show up to the party with at least 4 megabytes of RAM—but more is better. constraints
Manifesto for Agile Software Development A Definition agilemanifesto.org We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: Individuals and interactions over processes and tools Working software over comprehensive documentation Customer collaboration over contract negotiation Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more. Deliver early and continuouslyWelcome changing requirementsSelf-organizing teamsTechnical excellence and good designAgility and sustainability+7 More agileprocesssoftware
Deliver early and continuously Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.
Welcome changing requirements Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage. A late change in requirements is a competitive advantage planning
Self-organizing teams The best architectures, requirements, and designs emerge from self-organizing teams.
Technical excellence and good design Continuous attention to technical excellence and good design enhances agility. craft
Agility and sustainability Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.
The amount of work not done Simplicity—the art of maximizing the amount of work not done—is essential. -2000 Lines Of Code simplicity
Build projects around motivated individuals Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done. On ValueOn Talent
Deliver working software frequently Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.
Business people and developers Business people and developers must work together daily throughout the project. collaboration
Face-to-face conversations The most efficient and effective method of conveying information to and within a development team is face-to-face conversation. teamwork
Reflect, tune, adjust At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly.