Non-ownership Perishability Perhaps of all the suggested special characteristics of service products or classification of services, this is one of the most difficult to appreciate.
In order to meet the varying needs of this audience, several layers of guidance are provided including overall principles, general guidelines, testable success criteria and a rich collection of sufficient techniques, advisory techniques, and documented common failures with examples, resource links and code.
Principles - At the top are four principles that provide the foundation for Web accessibility: See also Understanding the Four Principles of Accessibility.
Guidelines - Under the principles are guidelines. The 12 guidelines provide the basic goals that authors should work toward in order to make content more accessible to users with different disabilities.
The guidelines are not testable, but provide the framework and overall objectives to help authors understand the success criteria and better implement the techniques. In order to meet the needs of different groups and different situations, three levels of conformance are defined: The techniques are informative and fall into two categories: The advisory techniques go beyond what is required by the individual success criteria and allow authors to better address the guidelines.
Some advisory techniques address accessibility barriers that are not covered by the testable success criteria. Where common failures are known, these are also documented.
All of these layers of guidance principles, guidelines, success criteria, and sufficient and advisory techniques work together to provide guidance on how to make content more accessible. Authors are encouraged to view and apply all layers that they are able to, including the advisory techniques, in order to best address the needs of the widest possible range of users.
Note that even content that conforms at the highest level AAA will not be accessible to individuals with all types, degrees, or combinations of disability, particularly in the cognitive language and learning areas.
Authors are encouraged to consider the full range of techniques, including the advisory techniques, as well as to seek relevant advice about current best practice to ensure that Web content is accessible, as far as possible, to this community.
Metadata may assist users in finding content most suitable for their needs. Other documents, called supporting documents, are based on the WCAG 2. Techniques for WCAG 2. Additional resources covering topics such as the business case for Web accessibility, planning implementation to improve the accessibility of Web sites, and accessibility policies are listed in WAI Resources.
Each of these is introduced briefly below and defined more fully in the glossary.
It also includes the increasingly dynamic Web pages that are emerging on the Web, including "pages" that can present entire virtual interactive communities. For example, the term "Web page" includes an immersive, interactive movie-like experience found at a single URI.
For more information, see Understanding "Web Page". Programmatically Determined Several success criteria require that content or certain aspects of content can be " programmatically determined.
For more information, see Understanding Programmatically Determined. Accessibility Supported Using a technology in a way that is accessibility supported means that it works with assistive technologies AT and the accessibility features of operating systems, browsers, and other user agents.The distinguishing characteristic of the Marquesan islanders, and that which at once strikes you, is the European cast of their features--a peculiarity seldom observable among other uncivilized people.
Other of birds' characteristics are unique or essentially unique. Feathers Soft, fluffy downy feathers help keep birds warm, contour feathers streamline birds’ bodies and aid in flying, and flight feathers on wings and tail give the bird loft. Abstract. Web Content Accessibility Guidelines (WCAG) covers a wide range of recommendations for making Web content more accessible.
Following these guidelines will make content accessible to a wider range of people with disabilities, including blindness and low vision, deafness and hearing loss, learning disabilities, cognitive limitations, limited movement, speech disabilities. feature - Traduzione del vocabolo e dei suoi composti, e discussioni del forum.
Six key distinguishing characteristics of services are as follows: a. Intangibility b. Inseparability c. Variability d. Perishability e. Heterogeneity f. Lack of Ownership. Services cannot generally be seen, tasted, felt, heard or smelt before being bought. The potential customer is unable to.
Calcite is the one of the most common minerals. It occurs in a great variety of shapes and colors, and it constitutes a major portion of many of the earth's rocks.