Topics such as open-source software, virtual organizations, online political campaigns, digital television, social media, and computer games need to be understood and advanced from both a technical and human perspective simultaneously.
The red arrow indicates 'disjoint classes'. First, the domain of w3cgeo: While one could interpret these properties as mapping to a geometryas GeoRSS Simple does, there isn't conclusive evidence that this is what was intended.
Point is defined as a sub-class of w3cgeo: As a result, we have inconsistency in how w3cgeo: SpatialThing may be interpreted. Geometry ; Because foaf: Person is defined as a sub-class of w3cgeo: SpatialThingsome other people find it natural to equate w3cgeo: Feature So in summary, it's safer to say that our Spatial Thing equates to geosparql: Featureand that it is not the same as w3cgeo: However, in some applications it is more useful to describe the variation of property values in space and time.
Such descriptions are formalized as coverages. Users of spatial information may employ both viewpoints. So what is a coverage? As defined by [ ISO ] it is simply a data structure that maps points in space and time to property values.
For example, an aerial photograph can be thought of as a coverage that maps positions on the ground to colors. A river gauge maps points in time to flow values. A weather forecast maps points in space and time to values of temperature, wind speed, humidity and so forth. One way to think of a coverage is as a mathematical function, where data values are a function of coordinates in space and time.
You can see from the above paragraph that non-gridded data like a river gauge measurement can also be modelled as coverages. Nevertheless, you will often find a bias toward gridded data in discussions and software that concern coverages.
Although the definition above presents a coverage as a data structure, conceptually it still has spatial extent. For example, the distribution of rainfall measured by a weather radar can be thought of as a coverage — the spatial extent is defined by the limit of the weather radar's range.
Similarly, we might say in the hydrology example, where a river gauge measures flow values at regular sampling times, the spatial extent would be the monitoring point where the river gauge is positioned.
We say that a coverage is really just a special type of Spatial Thing with some particular properties. Spatial Things and coverages may be related in several ways: As the property value of a Spatial Thing whose value varies within the extent of that Spatial Thing; for example, the varying strength of mobile-network coverage throughout the UK.
The values of a common property for a distributed set of Spatial Things provide a discrete sampling of a coverage; for example, the measurement of soil moisture based at a set of sampling stations can be compiled to show the spatial variation of soil moisture across the region where the sampling stations are located.
A coverage can be defined using three main pieces of information: The domain of the coverage is the set of points in space and time for which we have data values. For example, in a river gauge measurement, the domain is the set of times at which the flow was measured.
In a satellite image, the domain is the set of pixels. In a weather forecast, the domain is a set of grid cells. The range of the coverage is the set of measured, simulated or observed data values. A single coverage may record values for lots of different quantities; for example, a weather forecast predicts values for many things temperature, humidity etc.
So the range of a coverage often consists of several lists of data values, one for each measured variable.
Each element within each list corresponds with one of the elements of the domain e. The range metadata describes the range of the coverage, to help users to understand what the data values mean.
This may include links to definitions of variables, units of measure and other bits of useful information. Usually, the most complex piece of information in the coverage is the definition of the domain.Level Descriptors for Writing Name: _____ Date of first assessment: _____ Highlight criteria that are evident in the sample of writing.
Highlight box above in same colour, and date. Lev SENTENCE STRUCTURE AND PUNCTUATION TEXT STRUCTURE AND ORGANISATION COMPOSITION AND EFFECT SPELLING HANDWRITING.
Type or paste a DOI name into the text box. Click Go. Your browser will take you to a Web page (URL) associated with that DOI name. Send questions or comments to doi. Level descriptors for writing in student friendly language - ideal for self and peer assessment Acrobat pdf, kb/2 pages, 05/04/, XCurric Writing ashio-midori.com Level descriptors for reading in student friendly language - ideal for self and peer assessment.
However, the term “feature” is also commonly used to mean a capability of a system, application or component. Also, in some domains and/or applications no distinction is made between "feature" and the corresponding real-world ashio-midori.com avoid confusion, we adopt the term “Spatial Thing” throughout the remainder of this best practice document.
This is a helpful list, thanks. Many educators disagree with rule #8 though. Rule #4 takes precedence: sometimes it’s best to throw in a question with two or three distractors rather than come up with implausible distractors in the name of consistency. the drastic changes from 5th to 6th in some chapters is without rationale and not accurate in my clinical experience.
a couple chapters we were told to completely disregard by the peer reviewers at a seminar that was supposed to teach how to use the Guides.