Software for architecture plan article needs additional citations for verification. Software documentation is written text or illustration that accompanies computer software or is embedded in the source code. It either explains how it operates or how to use it, and may mean different things to people in different roles.
Documentation is an important part of software engineering. Statements that identify attributes, capabilities, characteristics, or qualities of a system. This is the foundation for what will be or has been implemented. Includes relations to an environment and construction principles to be used in design of software components.
Documentation of code, algorithms, interfaces, and APIs. Manuals for the end-user, system administrators and support staff. How to market the product and analysis of the market demand. Requirements documentation is the description of what a particular software does or shall do. It is used throughout development to communicate how the software functions or how it is intended to operate. It is also used as an agreement or as the foundation for agreement on what the software will do. Requirements comes in a variety of styles, notations and formality.
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The variation and complexity of requirements documentation makes it a proven challenge. Requirements may be implicit and hard to uncover. It is difficult to know exactly how much and what kind of documentation is needed and how much can be left to the architecture and design documentation, and it is difficult to know how to document requirements considering the variety of people who shall read and use the documentation. The need for requirements documentation is typically related to the complexity of the product, the impact of the product, and the life expectancy of the software. Another breed of design docs is the comparison document, or trade study. This would often take the form of a whitepaper.
It focuses on one specific aspect of the system and suggests alternate approaches. It could be at the user interface, code, design, or even architectural level. It contains Conceptual, Logical, and Physical Design Elements. The DDD includes the formal information that the people who interact with the database need. The purpose of preparing it is to create a common source to be used by all players within the scene. It is very important to include all information that is to be used by all actors in the scene.
It is also very important to update the documents as any change occurs in the database as well. Code documents are often organized into a reference guide style, allowing a programmer to quickly look up an arbitrary function or class. The idea of auto-generating documentation is attractive to programmers for various reasons. This makes it much easier to keep the documentation up-to-date. Some would characterize this as a pro rather than a con.
Respected computer scientist Donald Knuth has noted that documentation can be a very difficult afterthought process and has advocated literate programming, written at the same time and location as the source code and extracted by automatic means. Elucidative Programming is the result of practical applications of Literate Programming in real programming contexts. The Elucidative paradigm proposes that source code and documentation be stored separately. Often, software developers need to be able to create and access information that is not going to be part of the source file itself.