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Lifecycle methods for class-based components use a form of hooking that allows the execution of code at set points during a component's lifetime. ShouldComponentUpdate allows the developer to prevent unnecessary re-rendering of a component by returning false if a render is not required.
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The observer design pattern is a behavioural pattern listed among the 23 well-known "Gang of Four" design patterns that address recurring design challenges in order to design flexible and reusable object-oriented software, yielding objects that are easier to implement, change, test and reuse.
The V-Model demonstrates the relationships between each phase of the development life cycle and its associated phase of testing. The horizontal and vertical axes represent time or project completeness (left-to-right) and level of abstraction (coarsest-grain abstraction uppermost), respectively.
This diagram type is also known as FMC Block Diagram; Dynamic Structure Diagram depicts processes that can be observed in a system. This diagram type is also known as FMC Petri-net; Value Range Structure Diagram depicts structures of values found in the system. This diagram type is also known as FMC E/R Diagram; All FMC diagrams are bipartite ...
The Lifecycle Modeling Language (LML) is an open-standard modeling language designed for systems engineering. It supports the full lifecycle : conceptual, utilization, support and retirement stages. Along with the integration of all lifecycle disciplines including, program management , systems and design engineering , verification and ...
In project management it is a method comparable to PRINCE2 and describes methods for project management as well as methods for system development. The V-model, while rigid in process, can be very flexible in application, especially as it pertains to the scope outside of the realm of the System Development Lifecycle normal parameters.
Model-based systems engineering (MBSE) is the formalised application of modelling to support system requirements, design, analysis, verification and validation activities beginning in the conceptual design phase and continuing throughout development and later lifecycle phases.