Software design in the context of Implementation

Software development is the process of designing, creating, testing, and maintaining software applications to meet specific user needs or business objectives. The process is more encompassing than programming, writing code, in that it includes conceiving the goal, evaluating feasibility, analyzing requirements, design, testing and release. The process is part of software engineering which also includes organizational management, project management, configuration management and other aspects.

Software development involves many skills and job specializations including programming, testing, documentation, graphic design, user support, marketing, and fundraising.

A block diagram is a diagram of a system in which the principal parts or functions are represented by blocks connected by lines that show the relationships of the blocks. They are heavily used in engineering in hardware design, electronic design, software design, and process flow diagrams.

Block diagrams are typically used for higher level, less detailed descriptions that are intended to clarify overall concepts without concern for the details of implementation. Contrast this with the schematic diagrams and layout diagrams used in electrical engineering, which show the implementation details of electrical components and physical construction.

A computer system resource is any hardware or software aspect of limited availability that is accessible to a computer system. Like any resource, computer system resources can be exhausted, and issues arise due to scarcity.

Resource management, a key aspect of designing hardware and software, includes preventing resource leaks (not releasing a resource done with it) and handling resource contention (when multiple processes want to access the same resource). Computing resources are used in cloud computing to provide services through networks.

In mathematics, negative two or minus two is an integer two units from the origin, denoted as −2 or 2. It is the additive inverse of 2, following −3 and preceding −1, and is the largest negative even integer. Except in rare cases exploring integral ring prime elements, negative two is generally not considered a prime number.

Negative two is sometimes used to denote the square reciprocal in the notation of SI base units, such as m·s. Additionally, in fields like software design, −1 is often used as an invalid return value for functions, and similarly, negative two may indicate other invalid conditions beyond negative one. For example, in the On-Line Encyclopedia of Integer Sequences, negative one denotes non-existence, while negative two indicates an infinite solution.

A table cell is one grouping within a chart table used for storing information or data. Cells are grouped horizontally (rows of cells) and vertically (columns of cells). Each cell contains information relating to the combination of the row and column headings it is collinear with. In software design, table cells are a key component in HTML and webpage building. It is part of the <table> component. A programmer may specify dimensions for a table cell, and use them to hold sections of webpages.

The waterfall model is the process of performing the typical software development life cycle (SDLC) phases in sequential order. Each phase is completed before the next is started, and the result of each phase drives subsequent phases. Compared to alternative SDLC methodologies such as Agile, it is among the least iterative and flexible, as progress flows largely in one direction (like a waterfall) through the phases of conception, requirements analysis, design, construction, testing, deployment, and maintenance.The waterfall model is the earliest SDLC methodology.When first adopted, there were no recognized alternatives for knowledge-based creative work.

In computing, overhead is the consumption of computing resources for aspects that are not directly related to achieving a desired goal. Overhead is required for more general processing and impacts achieving a more focused goal. Overhead manifests as aspects such as slower processing, less memory, less storage capacity, less network bandwidth, and longer latency. Overhead can impact software design with regard to structure, error correction, and feature inclusion.

Overhead in computing is a special case of engineering overhead and has the same essential meaning as in business: organizational overhead.