science

Spatial file manager

Spatial file manager is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Spatial file manager rather than just read about it. In short: In computing, a spatial file manager is a file manager that uses a spatial metaphor to represent files and folders as if they were real physical objects. Concepts The base requirements of a spatial file manager are: Each folder is represented by a single window.

Key takeaways

Spatial file manager belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Spatial file manager to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Spatial file manager from memory before moving on to harder problems.

Reference excerpt

In computing, a spatial file manager is a file manager that uses a spatial metaphor to represent files and folders as if they were real physical objects.

Concepts The base requirements of a spatial file manager are:

Each folder is represented by a single window. Each window is unambiguously and irrevocably tied to a particular folder. Stability: files, folders, and windows go where the user moves them, stay where the user puts them ("preserve their spatial state"), and retain all their other "physical" characteristics (like size, shape, color and location). The same item can only be viewed in one window at a time. Given an arbitrary window in a spatial file manager, it must be possible to determine with complete certainty which folder that window represents. Furthermore, it must not be possible to change that association. Traditionally, when a folder is opened, the icon representing the folder changes —perhaps from an image showing a closed drawer to an opened one, perhaps the folder's icon turns into a silhouette filled with a pattern— and a new window is opened. Attempting to open that "already opened" folder will simply reveal the existing window. A new window will not be created because that would violate requirement number one listed above, attempting to reveal an already opened folder's contents using another window will either close the existing folder before opening it or refuse to reveal said contents. The change in the folder icon's state is meant to be a visual reminder of this behavior. It says, "This folder is already open." Similarly, while a document or application is open, its icons also represents this status and re-opening it will just reveal and bring it back to the front. A common alternative to the spatial file manager is the navigational file manager or "browser-style" file manager. A window in such a system is a device through which the contents of many folders may be viewed. A browser-style window is not tied to any particular folder. The window's spatial state (size, position, etc.) stays the same as the contents of many different folders are viewed through it. More than one browser window may show the contents of a particular folder simultaneously.

Examples Examples of file managers that use a spatial metaphor by default include:

Amiga's Workbench Apple's Finder 5 to 9 (versions prior to Mac OS X) BeOS's Tracker Enlightenment 17's file manager GNOME's Nautilus from version 2.6 till 2.28 the OS/2 Workplace Shell the RISC OS Filer the ROX Desktop's ROX-Filer Windows Explorer in Windows 95 was also a spatial file manager in some aspects, but became a navigational file manager in later versions of the operating system (when using the default settings) MATE's Caja file manager has a spatial mode, but is navigational by default.

Other objects Some file managers represent other objects, such as a trash can for unwanted files, or computer or floppy disk icons to represent storage media. There may also be special folders that contain special items such as user preferences or the user's applications.

Advantages and disadvantages

Advantages A spatial file manager is closer to the way people interact with physical objects around them, such as desks, chairs and tables. Since spatial properties are reliable indicators of "location" in a spatial file manager, the user may build up a familiar work environment by arranging commonly used windows, secure in the knowledge that this state will be preserved and will always map to the expected locations. This familiarity can lead to increased comfort and efficiency. Furthermore, identification based on spatial attributes is a very natural human ability, requiring little or no conscious thought. The ability to recognize and recall locations within the hierarchy based on the appearance and position of folder windows is the primary purpose of the spatial file manager. All of the "rules" and behaviors that define the spatial file manager are designed to ensure that the strengths of the visual/spatial recognition and recall abilities of the human brain are leveraged. The idea is that these abilities are more natural and require "less work" than other forms of recognition based on reading text, maintaining an awareness of "current working directory" (in a command-line environment, for example), relying on the memory of past actions, or any other non-spatial cues. One more advantage is that it allows the user to keep things arranged a certain way from one session to the next, as with the "workspace" settings in many high-end software packages. For instance, the windows showing the contents of different folders for a complex project could be tiled onscreen in such a fashion that all of them could be seen at the same time. In a browser-style file manager, one would be forced to rearrange these same windows every time they were reopened.

Disadvantages The spatial metaphor can seem awkward to those accustomed to browser-style file managers. One complaint is that spatial managers use too many windows, leading to clutter. In a Windows 95 usability study by Microsoft, users of varying experience were said to be "confused" by the many windows:

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Spatial file manager

Start with the simplest possible case. Write down what Spatial file manager claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Spatial file manager before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Spatial file manager ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Spatial file manager

In research: Spatial file manager appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Spatial file manager in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Spatial file manager is common in secondary-school and first-year university syllabi. It links to neighbouring topics File managers, Usability, User interface techniques, so understanding it makes those chapters shorter.
In everyday life: Look for Spatial file manager outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Spatial file manager in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Spatial file manager means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Spatial file manager out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Spatial file manager in simple terms?

In computing, a spatial file manager is a file manager that uses a spatial metaphor to represent files and folders as if they were real physical objects. Concepts The base requirements of a spatial file manager are: Each folder is represented by a single window.

Why does Spatial file manager matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Spatial file manager?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Spatial file manager.