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Are You Flexible? How to Design Flexible Systems and Features
- 1. AM I FLEXIBLE? Blessed are the flexible, for they shall not break
- 2. SYMPTOMS Rigid approach - focusing on specific implementation instead of providing generic feature (Restrictive user experience) Enhancements require major changes Reviewing the necessity of a feature Annoyance (Adverse to modification requests)
- 3. SOLUTIONS Think Generic (although requirement is specific) Welcome user conveniences Do not overrate your capabilities Analyze existing successful architectures and the intent behind the design
- 4. SUGGESTIONS Be prepared to outperform your achievements Do not feel fully content
Editor's Notes
- Scientific notation for numeric control Difficult to implement keyboard input even though mouse input is present. Pan/Rotate View The application supports Zooming, but a new feature comes to do zooming on mouse wheel, or maybe zoom around a specific point Not providing tabbed window
- Autocomplete edit like in google toolbar, but you should keep in mind the autocompletion window can be attached to any input control (TextBox, ComboBox, maybe even a editable cell in a grid control) Serialization – you can add it to anything 2. Allow the user to move the window by dragging any where (not just title bar) 3. You shouldn’t think your design is the state of the art architecture, if a request is hard to fulfill with the design u have, then maybe the request has a problem.. Change this notion 4. C# providing so many APIs to do a simple string concatenation – whether it is good or bad, at least try to know the intent 4. a) Convert.ToString(int x) int.Parse(string s) (maintainence)
- Just because you currently have a good solution doesn’t mean it is the best one. If in future when ur design or solution faces more questions than u can answer u have to accept that what you did initially was not good enough and be prepared to outperform what you now achieved given another oppurtunity, resource and time. Do not feel fully content