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In software engineering, a software development process or software development life cycle (SDLC) is a process of planning and managing software development. It typically involves dividing software development work into smaller, parallel, or sequential steps or sub-processes to improve design and/or product management .
Design model (a work product). Process patterns can be best seen in software design cycle which involves the common stages of development. For example, a generic software design life cycles has following steps: Communication. Planning. Modeling which involves requirement gathering, analysis and design from business perspective. Development ...
A systems development life cycle is composed of distinct work phases that are used by systems engineers and systems developers to deliver information systems.Like anything that is manufactured on an assembly line, an SDLC aims to produce high-quality systems that meet or exceed expectations, based on requirements, by delivering systems within scheduled time frames and cost estimates. [3]
Software design usually is directed by goals for the resulting system and involves problem-solving and planning – including both high-level software architecture and low-level component and algorithm design. In terms of the waterfall development process, software design is the activity of following requirements specification and before coding ...
For example, the 1985 DOD-STD-2167 [2] mentions (in section 4.1.2): "During software development, more than one iteration of the software development cycle may be in progress at the same time." and "This process may be described as an 'evolutionary acquisition' or 'incremental build' approach."
In software development, the V-model [2] represents a development process that may be considered an extension of the waterfall model and is an example of the more general V-model. Instead of moving down linearly, the process steps are bent upwards after the coding phase, to form the typical V shape.
Later, some steps were combined to create a method with only three steps. [5] Modelling stage (analysis): with the entity/action step and entity structures step. Network stage (design): with the initial model step, function step, and system timing step. Implementation stage (realisation): the implementation step.
Object-oriented design (OOD) is the process of planning a system of interacting objects to solve a software problem. It is a method for software design . By defining classes and their functionality for their children (instantiated objects), each object can run the same implementation of the class with its state.