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| <div class="section" id="design-and-architectural-goals"> |
| <h1>Design and Architectural Goals<a class="headerlink" href="#design-and-architectural-goals" title="Permalink to this headline">¶</a></h1> |
| <p>Our goal for CodeIgniter is maximum performance, capability, and |
| flexibility in the smallest, lightest possible package.</p> |
| <p>To meet this goal we are committed to benchmarking, re-factoring, and |
| simplifying at every step of the development process, rejecting anything |
| that doesn’t further the stated objective.</p> |
| <p>From a technical and architectural standpoint, CodeIgniter was created |
| with the following objectives:</p> |
| <ul class="simple"> |
| <li><strong>Dynamic Instantiation.</strong> In CodeIgniter, components are loaded and |
| routines executed only when requested, rather than globally. No |
| assumptions are made by the system regarding what may be needed |
| beyond the minimal core resources, so the system is very light-weight |
| by default. The events, as triggered by the HTTP request, and the |
| controllers and views you design will determine what is invoked.</li> |
| <li><strong>Loose Coupling.</strong> Coupling is the degree to which components of a |
| system rely on each other. The less components depend on each other |
| the more reusable and flexible the system becomes. Our goal was a |
| very loosely coupled system.</li> |
| <li><strong>Component Singularity.</strong> Singularity is the degree to which |
| components have a narrowly focused purpose. In CodeIgniter, each |
| class and its functions are highly autonomous in order to allow |
| maximum usefulness.</li> |
| </ul> |
| <p>CodeIgniter is a dynamically instantiated, loosely coupled system with |
| high component singularity. It strives for simplicity, flexibility, and |
| high performance in a small footprint package.</p> |
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