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I2 Group

I2 Group 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 I2 Group rather than just read about it. In short: i2 Group is a UK-based software company that produces visual link analysis software for military intelligence, law enforcement, and commercial agencies. Since 2022, it has been a wholly owned subsidiary of Constellation Software.

I2 Group — main illustration
I2 Group — illustration

Key takeaways

  • I2 Group 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 I2 Group to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of I2 Group from memory before moving on to harder problems.

Reference excerpt

i2 Group is a UK-based software company that produces visual link analysis software for military intelligence, law enforcement, and commercial agencies. Since 2022, it has been a wholly owned subsidiary of Constellation Software.

History Founded in 1990 in Cambridge, i2 Limited sold products to more than 2,000 organizations in 149 countries, including most members of NATO. The company was founded by Mike Hunter and Dr Tim Spiers, who along with the employees of the company, held all shares until the company was acquired in 2005. i2 developed software products for visualization and analysis of disparate data sources to aid criminal investigation, and which were later also used by other branches of government (including anti-terrorism, military intelligence and defense), as well as commercial fraud. Beginning with desktop Windows solution, the first products were the i2 Link Notebook and i2 Case Notebook, which would eventually be used by every police force throughout the UK, and were often the incentive for the first PC installed for use by analysts and investigators in a particular office. Product capability and range was expanded from law enforcement, for use across industries including government, military and national defense and public safety, as well as commercial fraud prevention. US headquarters (known as i2 Incorporated) was in McLean, Virginia. In 2005 the company was acquired by ChoicePoint. In June 2008, i2 was acquired from ChoicePoint by Silver Lake Partners Sumeru fund for $185 million. In July 2009, i2 merged with Knowledge Computing Corporation (KCC), makers of Coplink software. KCC was founded in 1998 in Tucson, Arizona. In 2011, i2 received $10 million as an out of court settlement from Palantir. i2 sued Palantir in federal court alleging fraud, conspiracy, and copyright infringement over Palantir's algorithm. Shyam Sankar, Palantir’s director of business development, used a private eye company as the cutout for obtaining i2's code. In December 2021, IBM announced that it will be divesting the i2 family of products to N. Harris Computer Corporation, a division of Constellation Software. The acquisition was completed in January 2022, and the business subsequently began operating as i2 Group within Harris Computer Corporation.

Products The first products included the i2 Link Notebook and i2 Case Notebook. The i2 Link Notebook enabled investigators to create entity relationship diagrams (a kind of visual database) allowing raw intelligence – largely textual reports (e.g. witness statements) – to be entered manually, revealing the relationships within the data and enabling data from different sources to be collated and graded. Automatic and manual layouts, and the ability to create, share, search, analyze and crucially print, even extremely large charts (sometimes tens of meters in length), dramatically improved law enforcement's ability to understand and communicate the status of investigations, and to direct and manage the process. The i2 Case Notebook provided similar data entry and visualization of time series data (i.e. laying events out along themes such as people and places), again able to handle very large data sets. Even with variable density timescales, due to the very large number of events uncovered in a large investigation, a single Case Chart could cover several walls in an office, or stretch tens of meters along a corridor. While initially for manual data entry, these tools were then extended with add-on components to allow integration with databases. These database add-ons allowed mapping between a database entities (such as person, place, organization, vehicle, asset, event) and the relationships between entities (such as associate, owns, related) and visual entities used to represent those records on the chart (person icon, place icon etc.). The first such database interface was to HOLMES 2 (Home Office Large Major Enquiry System), and subsequently many different SQL and even free text data sources. With database integration a query could be entered from within the visual representation of the data, the chart, either using a context menu on the chart background, or on a displayed entity (usually an icon). Query results were delivered directly to the visualization, by adding elements to the chart, and any added entities and links were automatically laid out without disturbing the rest of the chart, for ease of understanding. Investigators could explore a database with an initial search, and then incrementally expand to follow particular lines of thought. For example, by right clicking a person icon, choosing "Expand", and having new entities displayed as icons connected to the queried person, to show relationships drawn directly from the database. Thus revealing associations that would be difficult to spot through a traditional database query UI such as a person record that may or may not include information about known associates, vehicles, assets and so on, related to that person. This removed the need for any contextual knowledge by the investigator to infer likely relationships, and enabled even a new investigator to quickly explore new data or new hypotheses even with very large data sets. The i2 Analyst's Notebook became the name for a packaged solution which included the i2 Link Notebook and i2 Case Notebook. This was part of the Human Terrain System, a United States Army program which embeds social scientists with combat brigades. An investigation into fraud in the U.S. Army was reported to have used Analyst's Notebook in 2009. Analyst's Notebook was also used in the Army Distributed Common Ground System through 2011. Other i2 products included: Analyst's Workstation, iBase, iBase Intellishare, iXv Visualizer, iBridge, iXa Search Service, TextChart, ChartReader and PatternTracer. Its products deal with problems sometimes called "big data". In September 2011, it was announced that IBM acquired i2 Limited. The terms were not disclosed, but estimated at around $500 million. At the time, it was estimated to have 350 employees. The products were then sold under the IBM i2 brand, as part of its "Smarter Cities" campaign.

References

External links Official website

Illustrations

I2 Group illustration

Worked examples

Example 1 — a first encounter with I2 Group

Start with the simplest possible case. Write down what I2 Group 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 I2 Group 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 I2 Group 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 I2 Group

In research
I2 Group 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 I2 Group 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
I2 Group is common in secondary-school and first-year university syllabi. It links to neighbouring topics Crime statistics, Data analysis software, IBM acquisitions, so understanding it makes those chapters shorter.
In everyday life
Look for I2 Group 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 I2 Group in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what I2 Group means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain I2 Group out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is I2 Group in simple terms?

i2 Group is a UK-based software company that produces visual link analysis software for military intelligence, law enforcement, and commercial agencies. Since 2022, it has been a wholly owned subsidiary of Constellation Software.

Why does I2 Group 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 I2 Group?

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 I2 Group.

Tags

  • Crime statistics
  • Data analysis software
  • IBM acquisitions
  • Software companies of the United Kingdom

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