Software design description

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A software design description (a.k.a. software design document or SDD; just design document; also Software Design Specification) is a representation of a software design that is to be used for recording design information, addressing various design concerns, and communicating that information to the design’s stakeholders. ^[1] An SDD usually accompanies an architecture diagram with pointers to detailed feature specifications of smaller pieces of the design. Practically, the description is required to coordinate a large team under a single vision, needs to be a stable reference, and outline all parts of the software and how they will work.

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Composition

The SDD usually contains the following information:

The Data-driven design describes structures that reside within the software. Attributes and relationships between data objects dictate the choice of data structures.
The architecture design uses information flowing characteristics, and maps them into the program structure. The transformation mapping method is applied to exhibit distinct boundaries between incoming and outgoing data. The data flow diagrams allocate control input, processing and output along three separate modules.
The interface design describes internal and external program interfaces, as well as the design of the human interface. Internal and external interface designs are based on the information obtained from the analysis model.
The procedural design describes structured programming concepts using graphical, tabular and textual notations.

These design mediums enable the designer to represent procedural detail, that facilitates translation to code. This blueprint for implementation forms the basis for all subsequent software engineering work.

IEEE 1016

IEEE 1016-2009, titled IEEE Standard for Information Technology—Systems Design—Software Design Descriptions,^[2] is an IEEE standard that specifies "the required information content and organization" for an SDD.^[3] IEEE 1016 does not specify the medium of an SDD; it is "applicable to automated databases and design description languages but can be used for paper documents and other means of descriptions."^[4]

The 2009 edition was a major revision to IEEE 1016-1998, elevating it from recommended practice to full standard. This revision was modeled after IEEE Std 1471-2000, Recommended Practice for Architectural Description of Software-intensive Systems, extending the concepts of view, viewpoint, stakeholder, and concern from architecture description to support documentation of high-level and detailed design and construction of software. [IEEE 1016, Introduction]

Following the IEEE 1016 conceptual model, an SDD is organized into one or more design views. Each design view follows the conventions of its design viewpoint. IEEE 1016 defines the following design viewpoints for use:^[5]

Context viewpoint
Composition viewpoint
Logical viewpoint
Dependency viewpoint
Information viewpoint
Patterns use viewpoint
Interface viewpoint
Structure viewpoint
Interaction viewpoint
State dynamics viewpoint
Algorithm viewpoint
Resource viewpoint

In addition, users of the standard are not limited to these viewpoints but may define their own.^[6]

IEEE status

IEEE 1016-2009 is currently listed as 'Inactive - Reserved'.^[7]

References

^ IEEE Standard for Information Technology--Systems Design--Software Design Descriptions. IEEE STD 1016-2009. July 2009. pp. 1–35. doi:10.1109/ieeestd.2009.5167255. ISBN 978-0-7381-5925-6.
^ IEEE Standard for Information Technology--Systems Design--Software Design Descriptions. IEEE. 2009-07-20. doi:10.1109/IEEESTD.2009.5167255. ISBN 978-0-7381-5925-6.
^ IEEE 1016, Abstract.
^ IEEE 1016, Abstract.
^ IEEE 1016, Clause 5.
^ IEEE 1016, sub-clause 4.5.
^ IEEE Standard for Information Technology--Systems Design--Software Design Descriptions. IEEE STD 1016-2009. July 2009. pp. 1–35. doi:10.1109/IEEESTD.2009.5167255. ISBN 978-0-7381-5925-6.

External links

IEEE 1016 website

Design

Disciplines

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Approaches

Tools
Intellectual property
Organizations
Awards

Tools	AAD Architectural model Blueprint Comprehensive layout CAD CAID Virtual home design software CAutoD Design quality indicator Electronic design automation Flowchart Mockup Design specification Prototype Sketch Storyboard Technical drawing HTML editor Website wireframe
Intellectual property	Community design Design around Design infringement Design patent Fashion design copyright Geschmacksmuster Industrial design rights European Union
Organizations	American Institute of Graphic Arts Chartered Society of Designers Design and Industries Association Design Council International Forum Design Design Research Society
Awards	European Design Award German Design Award Good Design Award (Museum of Modern Art) Good Design Award (Chicago Athenaeum) Graphex IF Product Design Award James Dyson Award Prince Philip Designers Prize

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