Analyst's Notebook

{{Short description|Data analysis software}}

{{Infobox software

| name = Analyst's Notebook

| logo =

| logo_caption =

| screenshot =

| developer = i2 Group, a subsidiary of Constellation Software

| latest release version =

| operating system = Windows

| genre = Productivity software, mind map, project management and knowledge management

| license = Commercial license

| website = {{url|https://i2group.com/}}

}}

i2 Analyst's Notebook is a software product from i2 Group for data analysis. Based on ELP (entity-link-property) methodology, it reveals relationships between data entities to discover patterns and provide insight into data. It is commonly used by digital analysts at law enforcement, military and other government intelligence agencies, and by fraud departments. It is a part of the Human Terrain System, a United States Army program which embeds social scientists with combat brigades. Several investigations, including an investigation into fraud in the U.S. Army, are reported to have used it.{{cn|date=April 2025}} It is also used by Swedish police to analyse social contacts and social networks.{{Citation | first = Monica | last = Kleja | url = http://www.nyteknik.se/nyheter/it_telekom/allmant/article3784822.ece | title = Säpos krav: Flöden från operatörerna | newspaper = Ny Teknik | date = 6 November 2013 | accessdate = 26 September 2015 | language = swedish | archive-date = 29 October 2015 | archive-url = https://web.archive.org/web/20151029170213/http://www.nyteknik.se/nyheter/it_telekom/allmant/article3784822.ece | url-status = dead }}{{Not in citation |date= July 2015}}

IBM acquired i2 Analyst's Notebook when it bought the i2 Group in 2011.{{Cite web|last=Jackson|first=Joab|date=2011-08-31|title=IBM to acquire i2 for criminal mastermind software|url=https://www.computerworld.com/article/2510873/ibm-to-acquire-i2-for-criminal-mastermind-software.html|access-date=2021-02-26|website=Computerworld|language=en}}

IBM sold all the i2 products, including i2 Analyst's Notebook, to Harris Computer Systems, a part of Constellation Software, in January 2022.{{Cite web |title=Harris acquires i2 product portfolio from IBM |url=https://www.harriscomputer.com/news/en/newsdate1641272400articleharris-acquires-i2-product-portfolio-from-ibm |access-date=2024-01-08 |website=www.harriscomputer.com |language=en}}