computer science

IF-MAP

IF-MAP is a computer 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 IF-MAP rather than just read about it. In short: The Interface for Metadata Access Points (IF-MAP) is an open specification for a client/server protocol developed by the Trusted Computing Group (TCG) as one of the core protocols of the Trusted Network Connect (TNC) open architecture. IF-MAP provides a common interface between the Metadata Access Point (MAP), a database server acting as a clearinghouse for information about security events and objects, and other el…

Key takeaways

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

Reference excerpt

The Interface for Metadata Access Points (IF-MAP) is an open specification for a client/server protocol developed by the Trusted Computing Group (TCG) as one of the core protocols of the Trusted Network Connect (TNC) open architecture. IF-MAP provides a common interface between the Metadata Access Point (MAP), a database server acting as a clearinghouse for information about security events and objects, and other elements of the TNC architecture.[1] The IF-MAP protocol defines a publish/subscribe/search mechanism with a set of identifiers and data types.

History The IF-MAP protocol was first published by the TCG on April 28, 2008. Originally, the IF-MAP specification was developed to support data sharing across various vendor’s devices and applications for network security. The specification has also been adopted for additional use cases of data-sharing including physical security. The 2.0 version of the IF-MAP spec separated the base protocol from the metadata definitions that define how different types of information are represented. The goal in separating the base protocol from the metadata definitions within the specification was to allow the specification to be adopted across other technologies (such as cloud computing, industrial control systems, or smart grid) to leverage their existing data models within the MAP framework. Version 2.1 of the IF-MAP spec was published on May 7, 2012. The primary new feature of IF-MAP 2.1 is that the IF-MAP identifier space became extensible. A reference implementation is available under GPLv3 license on Google Code repository.

References

Lawton, George. “New Protocol Improves Interaction among Networked Devices and Applications”, “Computing Now”, IEEE Computer Society. Reed, Brad. “NAC group expands its scope”, “Network World Magazine”, IDG Publishing. Beliles, Robert. “Technology for Securing a “Seat” at the Executive Table”, “Security Magazine”, BNP Media. “IF-MAP Based Intercloud Testbed In Planning” “Securing SCADA and Control Networks” Messmer, Ellen. “Trusted Computing Group eyes cloud security framework”, “Network World Magazine”, IDG Publishing.

External links IF-MAP resources at Trusted Computing Group omapd Opensource IF-MAP Server on google code

Worked examples

Example 1 — a first encounter with IF-MAP

Start with the simplest possible case. Write down what IF-MAP claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer 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 IF-MAP 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 IF-MAP 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 IF-MAP

In research: IF-MAP appears in computer 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 IF-MAP 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: IF-MAP is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer network security, Data transmission, Network protocols, so understanding it makes those chapters shorter.
In everyday life: Look for IF-MAP 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 IF-MAP in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what IF-MAP 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 IF-MAP out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IF-MAP in simple terms?

Why does IF-MAP matter?

Because it connects several computer 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 IF-MAP?

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 IF-MAP.