Spiral Model in Software Development: Phases, Benefits, and Drawbacks
The Spiral Model in Software Development
The Spiral Model, proposed by Barry Boehm in 1986, is a software development process model that combines elements of both the Waterfall Model and Prototyping. It is primarily used for large, complex, and high-risk projects where requirements are not well understood from the beginning.
Phases of the Spiral Model
Each loop (iteration) of the spiral represents a phase in the software process and includes four major activities:
-
Planning:
- Identify objectives, constraints,
Software Engineering Core Concepts & Practices
Software Engineering Fundamentals
Software engineering is a disciplined process in which user needs are analyzed, and software is designed, developed, and maintained based on those needs.
Attributes of Quality Software
- Maintainability: Software must evolve to meet the changing needs of customers.
- Dependability: Software must be trustworthy. Dependability encompasses characteristics such as reliability, security, and safety.
- Efficiency: Software should not make wasteful use of system resources, such as
Modular Software Design: Principles and Assembly Process
Design Methodology for Software Development
Modular Programming Principles
When developing a small program, any methodology can be sufficient. However, the problem arises as the program grows, increasing the number of statements and making it difficult to maintain readability and logically follow the implementation. Another factor to consider is that the person who reads code is not necessarily the same as the one who wrote it. Furthermore, different programmers may be involved in developing a single
Read MoreWeb Browsers and Internet Resources: Core Concepts
Web Browsers, Internet Resources & Referencing Essentials
Web Browsers: Characteristics and Functions
A web browser is a software application used to access and view content on the World Wide Web. It retrieves web pages from a server and renders them for the user.
Key Functions of a Web Browser
Viewing: Displaying webpages (HTML, images, videos).
Navigating: Clicking links, using back/forward buttons.
Downloading: Saving files and media from the internet.
Printing: Outputting web content to a printer
Essential Software Process Models and Methodologies
Software Development Processes
- A structured set of activities required to develop a software system.
- Many different software processes, but all involve:
- Specification: Defining what the system should do;
- Design and Implementation: Defining the system’s organization and implementing it;
- Validation: Checking that it meets customer requirements;
- Evolution: Adapting the system to changing customer needs.
- A software process model is an abstract representation of a process, presenting a description from a particular
Software Engineering Essentials: Concepts & Methodologies
Software Engineering Fundamentals
Software consists of computer programs and associated documentation. It can be developed for a particular person or a general market.
What is Software?
Software refers to computer programs and their associated documentation. It can be tailored for a specific individual or designed for a general market.
Software Attributes
Software should provide the required functionality and performance for the user. It must also be maintainable, dependable, and usable.